bluuebunny/crossref_metadata_2025 huggingface dataset:
Cuspis: a MATLAB suite for tasks investigating heart-brain interactions during fMRI.
Authors: Villani Valerio , Tsakiris Manos
Published: July 2023

Cuspis (Latin: [kuspis], meaning “sharp point”) is a MATLAB suite for presenting visual stimuli at different phases of the cardiac cycle and is designed to work with an MRI-compatible setup. Cuspis currently reads the electrocardiogram, detects the R-wave according to a user-defined threshold, and displays a visual stimulus with a specific stimulus onset asynchrony. To achieve this, Cuspis works in concert with the BIOPAC Hardware API and Psychtoolbox. The software was developed for tasks investigating heart-brain interactions during functional Magnetic Resonance Imaging, but, in principle, it can be used with different imaging techniques (e.g., electroencephalography), in behavioural research, as well as to trigger stimuli contingent on other bodily rhythms (e.g., respiratory cycle).
Quantifying the Stability Landscapes of Psychological Networks
Authors: Cui Jingmeng , Lunansky Gabriela , Lichtwarck-Aschoff Anna , Mendoza Norman B. , Hasselman Fred
Published: July 2023

The network theory of psychopathology proposes that mental disorders can be represented as networks of interacting psychiatric symptoms. These direct symptom-symptom interactions can create a vicious cycle of symptom activation, pushing the network to a self-sustaining dysfunctional phase of psychopathology: a mental disorder. Symptom network models can be estimated from empirical data through statistical models. Although simulation studies have established a relation between the structure of these symptom network models and the probability they end up in a self-sustaining dysfunctional phase, the general stability of the system is left implicit. The general stability includes both the stability of the dysfunctional phase, indicating vulnerability, and the stability of the healthy phase, indicating resilience. In this paper we present a novel method to quantify the stability landscapes of network models through potential landscapes. Our method is based on the Hamiltonian of the microstates of Ising models and can be used to show the stability of estimated Ising network models. Compared to simulation-based methods, our approach is computationally more efficient and quantifies the stability of all possible system states. Furthermore, we propose a set of stability metrics to quantify the stability of the healthy and dysfunctional phases, introducing a novel stability metric to assess resilience. To demonstrate the method’s utility, we apply it to an empirical data set and show how it can be used to compare the stability of phases and resilience between groups. The presented method is implemented in a freely available R package, Isinglandr.
Hazardous machinery: the assignment of agency and blame to robots versus non-autonomous machines
Authors: Dawtry Rael John , Callan Mitchell J.
Published: July 2023

Autonomous robots increasingly perform functions that are potentially hazardous and could cause injury to people (e.g., autonomous driving). When this happens, questions will arise regarding responsibility, although autonomy complicates this issue – insofar as robots seem to control their own behaviour, where would blame be assigned? Across three experiments, we examined whether robots involved in harm are assigned agency and, consequently, blamed. In Studies 1 and 2, people assigned more agency to machines involved in accidents when they were described as ‘autonomous robots’ (vs. ‘machines’), and in turn, blamed them more, across a variety of contexts. In Study 2, robots and machines were assigned similar experience, and we found no evidence for a role of experience in blaming robots over machines. In Study 3, people assigned more agency and blame to a more (vs. less) sophisticated military robot involved in a civilian fatality. Humans who were responsible for robots’ safe operation, however, were blamed similarly whether harms involved a robot (vs. machine; Study 1), or a more (vs. less; Study 3) sophisticated robot. These findings suggest that people spontaneously conceptualise robots’ autonomy via humanlike agency, and consequently, consider them blameworthy agents.
Evaluation of an online-based self-help program for patients with panic disorder - a randomized controlled trial
Authors: Lalk Christopher , Väth Teresa , Hanraths Sofie , Pruessner Luise , Timm Christina , Hartmann Steffen , Barnow Sven , Rubel Julian
Published: July 2023

Objectives: The present study evaluated the effectiveness of a minimally-guided online self-help intervention for panic disorder with or without agoraphobia. As our primary hypotheses, we expected the intervention to improve both panic symptoms and well-being.Methods: German-speaking patients (N = 156) between 18 and 65 with internet access and a diagnosis of panic disorder or agoraphobia with panic disorder were recruited for this randomized controlled trial. The intervention group (N = 84) received access to a 12-week online self-help program. The waitlist control group (N = 72) received no intervention during the study period but was offered the prospect of using the program after 12 weeks. Results: Changes in PAS revealed a significant effect in favor of the intervention group (t (df = 110.1) = -2.22, padj = .027) with a small to moderate effect size (d = -0.37, 95%-CI: -0.70; -0.04). No significant effect was found for the second primary outcome WHO-5 (t (df = 149.8) = 1.35, padj = .088) or the secondary outcomes functioning, mental health literacy, working ability and healthcare use). Conclusions: The presented online intervention can help reduce the core symptomatology of panic disorder with or without agoraphobia. Diminished effects may be due to higher illness burden in the intervention group and possibly the COVID pandemic which caused unique challenges to patients suffering from panic disorder. Regarding well-being and the secondary outcomes, superiority towards the control group was not established. Therefore, further research and intervention adaptations may be warranted to improve these outcomes.
On the Robustness of Reciprocal Associations Between Personality and Religiosity in a German Sample
Authors: Lucas Richard E. , Rohrer Julia M.
Published: July 2023

Objective: Entringer, Gebauer, and Kroeger (2023) used longitudinal data from a German panel study to examine reciprocal causal effects between personality and religiosity, along with cultural moderators of these effects. The current paper examines the robustness of the original effects to alternative model specifications. Method: We reanalyzed the same 4-wave data spanning 12 years (total N = 46,316), first replicating the original cross-lagged panel analyses and then extending these analyses in three ways: Using a random-intercept cross-lagged panel model, using observed rather than latent variables, and modeling each trait individually rather than simultaneously. Results: Correlations between personality and religiosity were all small in size, even when aggregating over 12 years. Lagged effects were very small, and none was robust across all model specifications. Cultural moderators also depended on model specifications. Conclusions: The very small size of these reciprocal effects, along with their sensitivity to model specifications, suggest that conclusions about causal effects of personality and religiosity should be drawn very cautiously.
Mineral medicinal groundwaters in Central Yakutia and prospects for their use
Authors: PAVLOVA N. A. , SHEPELEV V. V. , DANZANOVA M. V. , IVANOVA L. D. , EFREMOVA V. A.
Published: July 2023

In this study, we reviewed and summarized the data on permafrost and groundwater areas of Central Yakutia to understand the formation and distribution of subpermafrost mineral waters of sodium bicarbonate and chloride-bicarbonate types, and to evaluate their potential use for medical purposes. Analysis of the data indicated that these low-mineralized groundwaters are basic analogues to the Maykop and Karachi mineral waters, with no particular bioactive components. These mineral water types contain 400 to 1200 mg/dm3 bicarbonates, 100 to 600 mg/dm3 chlorides, 50 to 250 mg/dm3 (Karachi) and <50 mg/dm3 (Maykop) sulfates, 400 to 800 mg/dm3 sodium, and <10 mg/dm3 calcium and magnesium. The formation of sodium bicarbonate and chloride-bicarbonate type water in Central Yakutia is influenced by permafrost which promotes concentration of major chemical components under the cold temperatures and slow groundwater circulation. The study of minor and trace constituents indicates that the subpermafrost waters in the study region contain fluorine and lithium in excess of the drinking water standards but are potentially appropriate for balneotherapy. Further research on the bio-physiological effects of subpermafrost waters with elevated fluorine and lithium concentrations contribute to the development of the spa and health resort industry in Yakutia. Moreover, the study will expand the balneological spectrum of disease prevention and treatment for the benefit of residents of Yakutia and the adjacent regions.
Fluctuating asymmetry of the Acer negundo L. leaf: an indicator of its state and the quality of the urban environment
Authors: CHUDNOVSKAYA G. V. , CHERNAKOVA O. V.
Published: July 2023

The purpose of this study was to analyze the protective function of Acer negundo L. by assessing the indicators of developmental stability by fluctuating leave asymmetry depending on the value of the influence of anthropogenic factors. The materials were obtained from 25 test sites on areas that differed in the degree of road transport impact in 2018–2021 in Irkutsk. The values of the indicators of the developmental stability of each test site were determined as the average of the coefficients of fluctuating asymmetry, considering the eight characteristics of the leaves collected from them. These values indicate that A. negundo is sufficiently resistant to anthropogenic impacts, particularly the effects of emissions from road transport, compared with other types of phanerophytes involved in the landscaping of urbanized areas. The coefficient of weighted average of this indicator between sites in recreational areas and along highways was 1.33. The correlation coefficient between the values of development stability and the distance of growth of A. negundo from highways was r = –0.64±0.18, which confirms the average connection between these characteristics. Analysis of variance was used to assess the stability of tree development in four classes of traffic intensity (high, medium, low, and absent), determined through a correlation ratio, the level of which n = 0.70 demonstrates a high level of connection. To limit the implementation of A. negundo in the local flora, it is recommended that measures be gradually implemented to remove it from parks, squares, gardens, and adjacent territories, with the replacement of woody vegetation species that are well adapted to grow in these habitats.
Number and distribution of tree (Passer montanus) and house (Passer domesticus) sparrows in the Magadan Region
Authors: SLEPTSOV Yu. А.
Published: July 2023

In recent decades, a reduction in the number of sparrows has been observed throughout their wide distribution range. However, information on the distribution and abundance of sparrows in Northeast Asia is scarce. Monospecific sparrow populations have been identified in various settlements and towns in the Magadan Region, although there are occasional records of other sparrow species. Among monospecific populations, only tree sparrows breed settlements on the Tauy Bay coast, in Magadan, Susuman, Verkhny Seimchan, and Omsukchan, whereas only house sparrows breed in Evensk, Seimchan, and Ust-Omchug. The tree sparrow population in Magadan was estimated to be 2750 individuals over an area of 9.6 km². Their population density in winter, estimated by plot counts, varied between 200 and 384 individuals/km² in parts of Magadan with different housing types. We conclude by discussing the ways in which tree and house sparrows may spread across the area.
Application Of Machine Learning K-Nearest Neighbour Algorithm To Predict Diabetes
Authors: Jack Billie Chandra  , Dewi Nasien
Published: July 2023

Diabetes is a chronic disease characterized by high blood sugar (glucose) levels or above abnormal values. This can occur when the body is no longer able to absorb glucose properly or when the intake of glucose is higher than needed. Glucose is the main energy source for the cells of the human body. Glucose that accumulates over the long term in the body can lead to complications and more serious and life-threatening diseases. As a result, patients with diabetes must be predicted prior to the onset of disease complications. Machine learning is one of the branches of artificial intelligence that can be used to provide predictive value to datasets of diabetic patients. The tested dataset has 390 observations with data on cholesterol levels, glucose, HDL cholesterol, cholesterol ratio, age, gender, blood pressure, BMI, waist and hip width with its ratio, and the patient's height and weight as variables. Predictions are applied using the K-Nearest Neighbor method, which shows an accuracy of 93.58% with a k value of 3, using 20% of all data as test data.
Development of Rechargeable Lawn Mower
Authors: Hanafi Dirman , Afrianto Muhamad Wendi , Kwad Ayad Mahmood , Wahid Herman , Ghazali Rozaimi , Gunardi Yudhi
Published: July 2023

Lawn mower is device to mow grass. The lawn mower will be having a problem such as the lawn mower widely used around by handle manually with hand. Next, the power source for lawn mowers is from petrol energy. That energy is nonrenewable energy and has bad impacts on the environment and people. In this paper, a prototype of lawn mower is designed and fabricated with its operation movement system through the Smartphone via Wi-Fi connection. The lawn mower is powered using the sealed acid battery that it can charging by using the photovoltaic cell or AC voltage source. The development of rechargeable lawn mower using ESP32 to keep and process data before sending to the webpage IP Address 192.168.4.1 to show the control movement of lawn mower via Smartphone. Based on experimental test results, the lawn mower was able to control its movement via a smartphone through a Wi-Fi connection. Next, the results were revealing the ability of solar panels for 2 hours and AC voltage for 1 hour to fully charged the sealed lead-acid batteries. Finally, a grass trim performance test was carried out on a lawn mower in the yard of the house and the result was that the grass could be cut. After that, the battery consumption of lawn mower operation for 1 hour was obtained the result around 50% of the capacity which is fully discharge because occurs the maximum depth of discharge of sealed lead acid batteries.
Back-End development on Laboratory Information System in Universitas Riau
Authors: Muhammad Hakim Saputra  , Rahmat Rizal Andhi  , Edi Susilo
Published: July 2023

Laboratories usually have different tools, materials, documents, and a lot of other content. At the University of Riau, especially the Faculty of Engineering, it is filled with many laboratories. Starting with a computer network laboratory and chemical laboratory, machine laboratory, and many more. Currently information about laboratories cannot be found on the internet, and it is still difficult to access information about laboratories. This research focuses on creating a back-end system that can later be implemented in the development of a laboratory information system. This development process uses the V-Shaped model as a reference in the manufacturing stages. The system that has been made will be tested using the unit testing, integration testing, and system testing methods with ISO 25010 as a reference standard in determining the quality of the tests carried out. The results of testing the system obtained very good results with A results on reliability, maintainability, and security testing. In testing the efficiency of the system in getting a response time 80ms average on each page. White box testing also obtained results that all the features and data in the system were functioning and matched as they should.
Ethical Sensitivity and its Association with Caring Behavior among Healthcare Workers in Delta State, Nigeria: A Cross-Sectional Study
Authors: Edosomwan Henry Samuel , Nwanzu Chiyem Lucky
Published: July 2023

Introduction: Caring behavior is a unique behavior that can promote patients’ well-being, the performance of healthcare workers, and the general effectiveness of healthcare institutions. The mechanism and possible predictors of caring behavior are under-researched in health and organizational behavior literature. Based on the aforementioned, this study examined the predictive effect of ethical sensitivity (dimensions included) on caring behavior, and gender differences in caring behavior and ethical sensitivity among public healthcare workers in Delta State, Nigeria.
Methods: A cross-sectional research design and a quantitative approach for data collection were adopted. Simple random sampling was adopted for selecting the participating hospitals while the convenience sampling technique was utilized for selecting the healthcare workers. Two instruments with good psychometric properties were used for the data collection. The simple linear regression and independent sample t-test were used for testing the hypotheses via the IBM-SPSS v.25.
Results: The participants comprised 150 healthcare workers from public-owned hospitals consisting of 73(48.7%) males and 77(51.3%) females with a mean age of 40.60 years and a standard deviation of 9.30. The results of the study indicated that ethical sensitivity positively and significantly predicted caring behavior. Also, two dimensions of ethical sensitivity, moral strength, and moral responsibility positively and significantly predicted caring behavior while a sense of moral burden did not. Finally, there was no significant gender difference in caring behavior and ethical sensitivity.
Conclusion: This study highlights the role of ethical sensitivity, moral strength, and moral responsibility in predicting higher levels of caring behavior among healthcare workers. Thus, it was recommended that hospital administrators, health policymakers, and practitioners seeking to boost the caring behavior of healthcare workers should focus on enhancing factors such as sensitivity to ethical standards. Also, administrators of medical education can nurture intending healthcare workers (medical students) on the importance of ethics in the medical profession.
Areas of Work Life as Burnout Predictors in Dentists of Denpasar, Indonesia
Authors: Kurniawan Sylvia Jessy , Putra Kuswantoro Rusca , Rudijanto Achmad , Pratama Wayan Agus Wirya
Published: July 2023

Introduction: Burnout is most common among healthcare workers and is characterized by emotional fatigue, depersonalization and low personal accomplishment impacting behaviors also the work environment. This study aimed to analyze areas of work-life and burnout among dentists in dental hospitals.
Methods: A cross-sectional survey study was conducted on 72 dentists in a dental hospital in Denpasar. An online questionnaire containing the Maslach Burnout Inventory and the Areas of Work Life Survey by Michael Leiter and Christina Maslach to estimate burnout and work life was used for data collection from April-May 2022. Multiple linear regression was used to evaluate the association.
Results: The work-life area category had a score of 3.45, while the dentist’s average score for burnout had a mean value of 4.15. Workload, control, rewards, community, fairness, and values were associated with burnout. The control dimension showed the strongest correlation to burnout. The reward dimension had the most significant role in burnout. All dimensions of the work-life area are predictors of dentist burnout.
Conclusion: Based on the finding of this study, all of the dimensions of work life can potentially cause burnout in dentists. A reward is the most dominant variable in the emergence of burnout.  Management needs to set policies to reduce burnout for dentists at work.
Optimasi Aplikasi Pelapisan Nanopartikel Seng Oksida pada Kain Katun-Indigo dengan Response Surface Methodology
Authors: Reningtyas Renung , Rahayuningsih Edia , Kusumastuti Yuni , Kartini Indriana
Published: July 2023

The use of nanomaterial as a finishing agent in the textile industry continues to be developed. Nanoparticle zinc oxide (ZnONP) has anti-UV properties so that it can be used to protect the color of the fabric from fading. Constraints of using nanomaterial as a functionalization agent on fabric are the process of application and also its poor adhesion. This research aims to optimize ZnONP coating on cotton-indigo fabric so that ZnONP can be maximized adsorbed with good durability. Optimization is carried out by the Response Surface Methodology (RSM) method, with the independent variables are: ZnoNP Dispersion volume, the number of coating, and the method of coating (with and without sonication assisted). The response variable is the adsorbed ZnONP in fabric sample after the washing process. The number of coating and sonication-assisted coating gives significant results in increasing the number of adsorbed ZnONP.
Peran Guru Bimbingan dan Konseling Dalam Analisis Profil Gaya Belajar Siswa Sebagai Need Assessment Pembelajaran Berdiferensiasi
Authors: Akhmad Sugianto  , Mitha Suci Qomariah  , Annastya Nur Alisha
Published: July 2023

Tujuan penelitian adalah untuk mengidentifikasi peran guru BK dalam menganalisis gaya belajar siswa sebagai need assessment pembelajaran berdiferensiasi. Penelitian yang digunakan adalah penelitian survey. Teknik pengumpulan data yang digunakan adalah kuesioner gaya belajar. Teknik pengambilan sampel dengan stratified sampling yang berjumlah 160 sampel. Teknik analaisi data menggunakan deskriptif kulitatif. Hasil yang diperoleh menunjukkan bahwa siswa kelas 3 SDIT Ukhuwah Banjarmasin dengan gaya belajar visual. Gaya belajar siswa kelas 4, 5 dan 6 adalah kinestetik. Peran guru BK dalam penerapan pemebelajaran berdiferensiasi adalah memberikan layanan konseling, koordinator, konsultan, agen perubahan, dan asesor. Berdasarkan hasil penelitian tersebut dapat disimpulkan bahwa guru BK dan mata pelajaran dapat berkolaborasi dalam melaksanakan proses pembelajaran di sekolah sesuai dengan peran masing-masing sehingga siswa dapat belajar sesuai dengan kemampuannnya serta dapat mencapai tujuan pembelajaran.
Kata kunci: peran guru BK, gaya belajar, pembelajaran berdiferensiasi
Pendekatan Konseling Islam Bagi Korban Kekerasan Dalam Rumah Tangga (KDRT)
Authors: Marini  , Nefi Darmayanti
Published: July 2023

Penelitian ini bertujuan untuk memberikan bantuan kepada seorang istri yang mengalami penderitaan dari pernikahan dan berujung pada perceraian yang menyisakan kepedihan mendalam. Metode penelitian menggunakan metode kualitatif terhadap kegiatan konseling yang dilaksanakan oleh konselor dan ustdaz secara berkolaborari pada klien korban KDRT.  Konseling dilaksanakan dengan pendekatan Islam konselor berkolaborasi dengan ustdaz yang menguasai nilai Islam terutama tentang kehidupan keluarga. Hasil penelitian membuktikan bahwa setelah dilakukan kegiatan konseling klien mandapatkan perubahan positif dalam menata kehidupan yang baru yaitu klien menjadi pribadi yang lebih mendekatkan diri pada Allah SWT, melaksanakan sholat tahajjud, membaca Alquran, mendengarkan ceramah agama, membaca cerita inspiratif, kisah teladan, dan juga motivasi-motivasi melalui berbagai sumber. Dapat disimpulkan, bahwa konseling dengan pendekatan Islam dapat membantu konseli korban KDRT yang berujung perceraian untuk mendapatkan konsep kehidupan baru yang lebih positif dan sesuai dengan ajaran Islam.
Kata kunci: konseling, pendekatan islam, perceraian, manata kehidupan baru
Layanan Informasi untuk Meningkatkan Kontrol Diri Siswa Sekolah Menengah
Authors: Nadyya Nulhusni  , Herman Nirwana  , Yeni Efrita
Published: July 2023

Kontrol diri merupakan suatu kemampuan dimana remaja dapat mengendalikan dirinya. Jika pengendalian diri berhasil ditingkatkan maka, tinggi kontrol diri yang dimiliki. Sebaliknya, rendahnya kontrol diri yang dimiliki mengidentifikasi mereka kurang bisa mengendalikan dirinya. Tujuan penelitian yaitu menghasilkan bahan layanan informasi untuk meningkatkan kontrol diri siswa sekolah menengah. Metode yang digunakan dalam penelitian ini merupakan pengembangan (Research and Development) dengan model ADDIE, teknik analisis data yang digunakan adalah Wilcoxon Signed Rank Test.  Instrumen yang digunakan berupa kuesioner dan sasaran pemakai produk yaitu Guru BK . Hasil penelitian menunjukkan bahwa bahan layanan informasi yang dikembangkan sudah valid secara isi dan desain, praktis serta efektif untuk meningkatkan kontrol diri siswa sekolah menengah. Bahan layanan informasi yang dikembangkan ini hanya sebatas pada uji coba kelompok kecil, Yang mana hasil yang didapat terjadi peningkatan kontrol diri sebelum dan sesudah diberikan layanan informasi dengan menggunakan bahan layanan.
Kata Kunci: layanan informasi, kontrol diri, siswa
DEVELOPMENT OF HOSPITAL RESERVATION INFORMATION SYSTEM WITH UDC METHOD AND SUS TESTING
Authors: Kurniawan Adrian , Saputra Candra Eka , Aldo Dasril
Published: July 2023

Information system is a system that combines technology used to help human life. Not only helps facilitate information sistem activities, it also saves time, space and costs. Utilization of a website is useful in all fields because there are many and very broad and user-friendly features that can spoil the user's eyes. Activities that function to meet the needs of the general public are the meaning of public services as well as those related to other commodities such as goods, services and management provided by the organizers. In the health sector in public services, it is very necessary, especially in the service reservation process which still uses a queuing sistem in the form of taking queue numbers in the hospital lobby and waiting for hours, causing queues of visitors. The purpose of this study was to design a reservation information system at the hospital in order to increase the use of facilities and resources. The design of this hospital reservation information system is based on a website that was built using the user centered design method and tested using the SUS (Sistem Usability Scale) method which is in accordance with the criteria for the Sistem Usability Scale method which involves several respondents for information system acceptance
Designing An Investment Learning App for Students Using Design Thinking Approach
Authors: Yulius Rina , Nasrullah Muchamad Fajri Amirul , Handayani Siskha , Thohari Ahmad Hamim
Published: July 2023

Young people's awareness of stock investment is still low. Lack of knowledge about the investment stock market is an example of financial literacy. Moreover, the development of financial applications with game elements has created a new trend in the investment field. Therefore, we proposed a playful application as a learning medium to improve young people's stock market investment knowledge. This research aims to develop a mobile his application that can be used to improve the financial literacy, especially investment literacy, of Politeknik Negeri Batam students. The study uses a design thinking approach and leverages gamification to increase user retention. A total of 50 participants contributed to this study. Tracking, observing, and identifying problems that exist in the spread of financial literacy practices among Politeknik Negeri Batam students allows us to find new ideas as solutions to existing problems. The trial conducted on the product revealed that while users found the application overall useful and aligned with their requirements, there are still areas that need improvement.
A Study of Prediction Model for Capture Fisheries Production in Indonesian Sea Waters Using Machine Learning
Authors: Pradana Ganjar Adi
Published: July 2023

The potential for capture fisheries in Indonesia is a priceless wealth. This wealth has not been explored optimally. Fisheries resources are included in the category of renewable resources whose sustainability needs to be considered. This is important in maintaining food security which will increase over time, due to population growth. Capture Fisheries Production Prediction Model is needed to find out what determining variables affect capture fisheries production. There are many methods for predicting, the method that is widely used today is using machine learning since it ability to handle complex jobs with large input data. This research is a literature study, which aims to: (1) identify and analyze machine learning methods that are suitable for predicting capture fisheries production, and (2) identify variables that can affect capture fisheries production. The results of the study show that the Neural Network method is most widely used as a predictive model. In addition, the Random Forest and Linear Logistics methods provide better accuracy results. The results of the study also succeeded in finding 12 determining variables for the capture fisheries production prediction model.
Design Of Android Base School Information Media Application Case Study Of Qomariah Educational Institution
Authors: Saleh Muhammad Prakarsa Al Qadr , Ipantri Indra
Published: July 2023

Currently the world of technology and information is developing very quickly, including school information systems. The school information system is one of the information media that can be accessed by all elements of the school including teachers and students so that they can relate to each other in terms of teaching and learning activities and information that can be quickly disseminated to all students, so that students do not need to come to school. in this technological era from young to old all use smartphones to facilitate communication but PKBM Qomariah does not yet have the right information media. So an Android-based school information system application was made using Android studio. Android applications make it easier for teachers and students because they can be accessed on various smartphones. All teachers and students mostly have smartphones. With this application, teachers and students can get information from schools easily. The research method used is descriptive method by conducting observations, literature studies, and interviews. While the method used in making software is waterfall which consists of several stages, namely requirements definition, system and software design, implementation and unit testing, system integration and testing, Operation and Maintenance.
Influence of Annealing on Warping Angle on Polylactic Acid in Fused Deposition Modeling 3D Printer
Authors: Wicaksono Leo Hutri , Farid Akhmad
Published: July 2023

The industrial world has been developing at an increasingly rapid pace. The use of additive manufacturing technology is increasingly being used by various companies around the world. Fused deposition modeling (FDM) is a type of 3D printing that falls under the category of material extrusion. It is also known as fused filament fabrication (FFF). Fused deposition modeling (FDM) is the most cost-effective additive manufacturing technique. Polylactic acid (PLA) is a type of plastic that is made from renewable resources such as corn starch, tapioca roots, chips or starch, or sugarcane. It is biodegradable and bioactive and can be used for a variety of applications such as packaging materials, disposable tableware, medical implants, and 3D printing. PLA is also used in the food industry as a food packaging material. The goal of this study is to analyse the warping angle of PLA. In this study, the commercial eSUN PLA filament manufactured by Shenzhen Essun Industrial with a diameter of 1.75 mm was used. This study used experimental method with predetermined conditions such as ISO 527-2 printed specimens, annealing temperature at 50⁰C and 70⁰C. The test result shows that annealing at 50⁰C have the highest degree of side view 1.88⁰, and 1.32⁰ on average. The top view have 2.21 ⁰ and 1.19 on average. Afterwards, the study shows that annealing at 70⁰C have the highest degree of side view 6.19⁰, and 3.96 on average. The top view have 3.84⁰, and 2.33⁰ on average.
The Effect of Using a Heat Collection Filter on the Efficiency of Heat Absorption from the Flame of LPG Gas Fuel
Authors: Farid Akhmad , Soebiyakto Gatot
Published: July 2023

One of the uses of heat from fuel combustion is for the needs of cooking activities. The heat from the combustion reaction heats the surface of the pan, this occurs in the process of heat transfer by convection on the surface of the pan. The rooting reaction of LPG fuel produces a flow of combustion gas with a high flow speed. This will have the consequence that the heat wasted is very large while the absorbed is very small in the process of heating the surface of the pan. To increase heat absorption by the surface of the pan can be done by inhibiting the flow when the fire touches the surface of the pan. This study will examine how the effect of using a heat collection filter on the heat absorption efficiency of the flame of LPG fuel gas and aims to compare the heat absorption efficiency of a fuel gas flame using a heat collection filter with no heat collection filter (conventional). This study uses independent variables in the form of heat absorption without a heat collection filter and with a heat collection filter, as well as variations in LPG gas flow capacity. While the dependent variable observed is the heating time to obtain heat absorption efficiency. The results showed that convection heat absorption using a heat collection filter has a higher efficiency than without using a heat collection filter at various LPG gas flow capacities
Redesign of Facilities Layout Using Computerized Relationship Planning (CORELAP) and Computerized Relative Allocation of Facilities Techniques (CRAFT) Methods
Authors: Sari Yuninda Wulan , Putri Chauliah Fatma , Hardianto Andy
Published: July 2023

The Barokah Jaya Snack Industry is an MSME engaged in the manufacture of jipang rice and popcorn. Based on the results of direct observation, it is known that the main problem is operator complaints in picking up raw materials that are often used too far away and the placement is not close together so that the distance becomes long. This research looks for alternative solutions to problems in the scope of production in the Barokah Jaya Snack Industry, by making redesign proposals using the CORELAP (Computerized Relationship Layout Planning) and CRAFT (Computerized Relative Allocation of Facilities Technique) methods. The total displacement moment in the design using the CORELAP method is 1,978.75 meters/month, and in the design using the CRAFT method is 1,755.8 meters/month. The Material Handling Cost (OMH) for the design using the CORELAP method is Rp. 811,288/month and the design using the CRAFT method is Rp. 719,892/month. The layout resulting from the CORELAP method provides a material flow efficiency of 45.88% against the initial layout and the layout resulting from the CRAFT method provides a material flow efficiency of 51.98%. The selected layout recommendation has a total material displacement moment that is smaller than the initial layout and the smallest among the other alternative layouts. The selected layout is the layout designed using the CRAFT method, which is 1,755.8 meters/month increasing the efficiency of material flow by 51.98% and saving material transfer costs of Rp. 778,146/month.
EMPLOYMENT FLEXIBILITY IN TIMES OF CRISIS
Authors: Barański Michał
Published: July 2023

This article addresses the issue of legitimacy and legal consequences of the introduction of various forms of flexible employment in times of crisis, above all focusing on issues related to the flexibility of the workplace (telework, remote work), as well as those of flexible working time (part-time work, modifications of working time systems and schedules). Bearing in mind the specifics of the crisis, the following legal constructions will also be analyzed: term employment contracts, non-employee civil law work, work in cottage industry, self-employment, temporary work, casual work, on-call work, job sharing, and employee outsourcing. Each flexibilisation of employment introduced into the legal order due to the crisis, although temporary, each time leaves its mark on the regulations in force also in times free from a crisis (specific legal constructions remain, permanently modifying a given legal order). This article is also devoted to this issue.
EMPLOYMENT STABILITY IN TIMES OF THE COVID CRISIS: A CASE OF LEGAL INSTRUMENTS INTRODUCED BY THE POLISH LEGISLATOR
Authors: Gredka-Ligarska Iwona
Published: July 2023

Protection of jobs has become one priority aim of the legislator during the crisis caused by the SARS-CoV-2 coronavirus pandemic. In the justification of the draft Act of 2 March 2020 on special solutions relating to the prevention, neutralisation, and combating of COVID-19 and other contagious diseases and the ensuing crisis situations (COVID Act), it was emphasized that the aid mechanisms introduced in the Act were supposed to prevent mass collective redundancies. And although the legislator tried to preserve sustainable employment during the COVID crisis, only a part of the introduced legal provisions offered a guarantee of work to employees. This article aims to provide an overview and assessment of the aid mechanisms implemented by the Polish legislator to protect jobs during the COVID crisis. The anti-crisis activities of the legislator, intended to preserve sustainable employment, can be divided into indirect and direct measures. An analysis was carried out taking into account the above division. Based on the analysis, reflections are formulated on the effectiveness of the implemented aid mechanisms. Finally, conclusions for the future are offered.
THE IMPACT OF THE PANDEMIC ON COLLECTIVE RELATIONS IN POLAND
Authors: Mądrzycki Błażej , Pisarczyk Łukasz
Published: July 2023

The crisis caused by the outbreak and spread of the COVID-19 pandemic forced the legislature to make numerous legal changes. The undertaken measures comprised labour law understood in the broadest sense. They were intended to protect the economy, including jobs, from the dramatic consequences of the spread of the virus and the associated danger. The extraordinary circumstances called for specific measures, focused on protecting work and workers. The drafting of protective regulations, under such special circumstances, could not take place without dialogue involving the labour. At the multi-company level, this was seeking concrete solutions to protect the employees. In turn, at the company level, the partners exercised the rights guaranteed by the anticrisis regulations. The article offers an analysis of the legal situation of participants in social dialogue – both the employees and the employers. In retrospect, it is possible to evaluate specific measures which have been adopted.
REZYGNACJA Z ZASPOKAJANIA POTRZEB BYTOWYCH, SOCJALNYCH I KULTURALNYCH PRACOWNIKÓW W CZASIE KRYZYSU
Authors: Chruściel Łukasz
Published: July 2023

This article addresses the issue of the employers’ obligations to fulfil the employees’ life, social, and cultural needs, in particular the employers’ right to resign from those obligations in times of crisis. The author examines the Polish law in search for legal regulations constituting framework for those obligations and analyses their nature. Some of those obligations are not enforceable, which means that the employees cannot bring court action against the employers to fulfill them. The article focuses on the obligations that are enforceable and explains how the employers may legally resign from fulfilling them. The article takes into consideration the standard methods of resignation as well as those introduced by the anti-crisis regulations.
Editorial
Authors: Salinas Gamero Teresa Francisca
Published: July 2023

La revista Perfiles de Ingeniería  inicia una  nueva etapa, cambiando  su edición  anual  por semestral,  es  sumamente  importante  lograr  los mejores  estándares  de publicación,  esto  se logrará  con el esfuerzo  de  docentes ,  estudiantes  y  egresados.

Nunca  como hoy  se hizo  evidente  la crisis  de civilización  que  vive  el Perú  y la  humanidad, la pandemia por Covid-19,  develo las  graves  carencias  de las  necesidades  básicas   en el Perú   a esto  se suma  la crisis  ecológica  producida  por  el cambio  climático  y el fenómeno del  Niño  que  está  causando  graves  daños  a la  comunidad  por  el mal manejo  de  los  ecosistemas y  la  corrupción .
KEANEKARAGAMAN TUMBUHAN ANGIOSPERMAE DI KAWASAN TAMAN NASIONAL MATALAWA KABUPATEN SUMBA TIMUR
Authors: Jawaray Wilfridus Balla , Lalupan Erfy Melany , Ina Anita Tamu , Kusumanegara Agus
Published: July 2023

The highest plant diversity in the tropical rainforest area in Matalawa National Park is the Angiospermae plant. There are still many people in Praingkareha Village who are not familiar with Angiospermae plants or closed seed plants. This study aims to describe the diversity index of Angiosperm plants found in the Laputi Forest block, Matalawa National Park. This research was limited to the Laputi Forest block, so it did not cover the entire forest in Praingkareha Village, Matalawa National Park, East Sumba Regency. This study used a double plot method with a purposive sampling technique. The results showed that there were 30 species of Angiosperms from 17 families with a total of 499 individuals. The diversity of Angiosperm plants in the Laputi Forest block of the Matalawa National Park area is moderate with (Ĥ)=2.90.
ISOLASI, ENUMERASI, DAN KARAKTERISASI BAKTERI PELARUT FOSFAT (BPF) INDIGENUS TANAH DESA KEBUNAN SUMENEP SEBAGAI AGEN PUPUK HAYATI ORGANIK
Authors: Hefdiyah H. , Ali Mahrus , Utami Vita Kurnia
Published: July 2023

Phosphate Solubilizing Bacteria (PSB) are known that have important role to improve plant phosphate uptake as biofertilizer. These Microorganism hold potential to promote organic agriculture as eco friendly and efficiency. This study aims to isolate, enumerate and characterize indigenous PSB from Kebunan Village soil as the organic biofertilizer agent. Isolation and enumeration were carried out using the spread plate method on PCA media for enumeration of the total bacteria and Pikovskaya media (PKV) and NBRIP for BPF selection and enumeration. characterization includes observing the morphological colonies and cells. These experimental studies found that the soil pH was 6.5, the temperature range was 28-35 °C, the total P content was from 0.59 to 1.09 and the dissolved phosphate content sequentially from the smallest is 0.53 (KB2), 29.41 (KB1), 60.45 (KB3). The total abundance of bacteria at 3 different locations showed variations between 1.97 x 106 to 287 x 106. The highest abundance of BPF reached 5.45 x 106 cfu/g was in the watershed which had the lowest available P content. Total 7 isolates of BPF were successfully isolated and characterized with different colony characters and cell shapes. The selected BPF isolates were dominated by Gram-positive bacilli.
PENGEMBANGAN MEDIA POP UP BOOK PADA TEMA 6 ENERGI DAN PERUBAHANNYA SUBTEMA SUMBER ENERGI DI KELAS III SDN 014684 DADIMULYO TAHUN AJARAN 2019/2020
Authors: Tarigan Daitin , Azmi Veren Nalita
Published: July 2023

This study aims to develop pop-up book learning media, to analyze the feasibility of the pop-up book learning media being developed, and to determine the response of students and educators to the developed pop-up book learning media. The type of research used is R&D with research and development procedural from Borg and Gall which has been modified by Sugiyono with development steps, namely; (1) the potential and problem stage by observing, (2) the data collection stage by conducting research activities, (3) media design, (4) media validation, (5) media revision stage I, (6) testing, and ( 7) revision of stage II media. Researchers took five steps in this process due to the current Covid-19 virus pandemic. This pop-up book learning media is validated by media expert validators and material expert validators. Assessment of media feasibility uses a Likert scale. Based on the data analysis, the media expert's assessment at stage I obtained a percentage of the feasibility results of 78.3% including the criteria of "Good". The results of the second stage media validation assessment obtained a score of 69 with the percentage of eligibility results was 83.3%. The pop up book is included in the "Very Good" category, the material expert's assessment at stage I obtained a percentage of the eligibility results of 89.5% including the criteria "Very Good" and in stage II obtained a percentage of eligibility results of 94.5% included in the criteria "Very Good. Good". 

Keywords: Learning Media, Energy and Change, Pop-up Book, SDN 014684 Dadimulyo
PENERAPAN MODEL STUDENT TEAMS ACHIEVIEMENT DIVISIONS (STAD) PADA PEMBELAJARAN IPS SISWA KELAS IV SD NEGERI 2 PETUNANG
Authors: Yensi Miko , Sofiarini Andriana , Valen Andri
Published: July 2023

The research objective was to find out using the Student Teams Achieviement Divisions model in social studies learning for grade IV Elementary School 2 Petunang students significantly complete. The research method used was quasi-experimental, the research design was pretest-posttest group design. The population was all students in grade IV Elementary School 2 Petunang and a sample of 22 students in grade IV which was determined by simple random sampling. The data collection technique used a test technique in the form of 7 essay questions. The average final test score of students was 76.62 with the percentage of the number of students who completed 59.09%. The collected data were analyzed using the t test. based on the results of t-test analysis at a significant level α = 0.05, the value obtained is tcount (1.93) ≥ t_ (table) (1.72), because tcount ≥ t_ (table), it can be concluded that the social studies learning outcomes of students use The Students Teams Achieviement Divisions' learning model was significantly complete.

 Keywords: Model Student Teams Achieviement Divisions, Social Studies Learning, Learning Outcomes.
Implementation of the item-based collaborative filtering method on a web-based culinary tourism recommendation system (case study: Magelang City)
Authors: Ardiansyah Ahmad Husain , Widiyanto Andi , Nugroho Setiya
Published: July 2023

Culinary is a type  of business that will always exist, this is because one of the factors of human needs is in the form of food. Therefore it is necessary to have a system that provides recommendations to provide input to consumers to minimize consumer confusion about the many culinary places. In this study, to obtain recommendations, the Item-based Collaborative Filtering method will be used to approach consumers with one another. Meanwhile, to get this approach, the approach that will be assessed is an approach to rating culinary places, to get a consumer rating it will give value to 4 aspects, namely: place value, service value, view value, and speed of service value. This study uses the consine similarity algorithm to get the value of the approach. The results obtained by this study using the Likert scale method got a value of 71.6656% "fulfilled". Meanwhile, in the black-box test, the score is 100% functioning, and in the test to determine the accuracy of manual calculations and the system, the value is 100% the same.