bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGARUH SOCIAL MEDIA TERHADAP PERILAKU PENCARIAN INFORMASI KESEHATAN PADA REMAJA
Authors: Ma Dwinurs
Published: November 2022

Technological developments have led to an increase in social media users. Social media is a technology that can search and share information in the form of text, images, audio, video, and location. Information seeking behavior starts from a person's need to obtain information. The type of information that is sought after by the public regarding health. This study aims to determine the effect of social media on health information seeking behavior in adolescents. The study used a correlational analytic study, with a cross sectional research design. The research was conducted at SMK X Semarang City. The population is youth of SMK X Semarang City as many as 227 people. The sampling technique was by means of cluster random sampling as many as 43 people. Collecting data using a questionnaire. Test the validity and reliability test using Cronbach Alpha. Bivariate analysis using Spearman's rho. The results showed that the sig value of 0.000 <0.05 means that there is a significant relationship. The correlation coefficient value of 0.554 means a strong level of influence. So that social media affects the behavior of seeking health information in adolescents, and it often occurs in adolescents as many as 18 people (41.9%).
The Effect of Behavior and Characteristics of Shallot Farmers on Production Risk in Deli Serdang District
Authors: Arafah Siti Nur , Ayu Sri Fajar , Wibowo Rulianda P.
Published: November 2022

Horticulture is part of the agricultural sector which has received quite a lot of attention by the government to continue to be developed. Shallots are horticultural crops that are currently widely grown in Indonesia and have high economic value and demand. The development of shallot farming is basically aimed at increasing the productivity and welfare of farmers. However, shallot cultivation does not fully provide maximum benefits for farmers. This happens because of the risk in the implementation of onion farming. The risk factors that occur are production risk and shallot price risk. Production and price risks will reduce the income of shallot farming so that the household income of farmers decreases. Therefore, agricultural development through increasing productivity must be in line with the handling of the risks faced. The research area was determined purposively, namely in Liang Pematang Village, Sinembah Tanjung Muda Hulu District, Deli Serdang Regency, with the consideration that the area is one of the shallot production centers in Deli Serdang Regency. The sample in this study were farmers who were working on shallots in the research area. The samples taken were 30 shallot farmers. Farming risk level analysis using Failure Mode and Effect Analysis (FMEA). From the results of the study, it is known that the characteristics of shallot farmers are farmers of productive age and the dominant education is quite high at the high school level. Most farmers own more than 2,000 m2 of land, and have been farming for more than 10 years and the land used is their own land. The risks faced in shallot farming based on severity from the highest to the lowest are the selling price of shallots, fertilizer prices, weather conditions, Pest attacks, availability of seeds, diseases and labor.
Mass Media Analysis and Exposure of Bangga Kencana Program towards Youth in North Sumatera Province, Indonesia
Authors: Sitorus Muhammad Ancha , Chairunnisa Milna , Saputra Sandy Armando , Debyana Debyana
Published: November 2022

The use of mass media as a form of public perception of a program must be a concern so that the success of a program can be measured properly. North Sumatra Province is a province that is divided into three regional segmentations, namely the coast, the central mountains, and the archipelago which are divided into 33 districts/ cities. Analysis of 2019 SKAP BKKBN data. The number of adolescents from the 2019 SKAP data was 1834 people who were the total sample of adolescents in this pellet. This research is descriptive analytic in the form of a secondary data study or analysis, which is to further analyze existing data sets or those that have been collected from the 2019 North Sumatra Province Accountability Program Performance Survey (SKAP). The analysis uses chi-square for bivariate and multiple multiple regressions for multivariate analysis. The results of the study consisted of descriptive and analytic. The description of this research The condition of the IEC media used in informing teenagers in North Sumatra on the pride issues of kencana still rely on print media, electronic media, outdoor media and online media. Its effectiveness is also influenced by the level of education, gender, area of ​​residence, and also the age of adolescence. Electronic media is still popular as a medium that informs youthful issues of good fortune, followed by online media which is a percentage more acceptable to teenagers.
The Control of Permits for Selling Alcoholic Drinks in Medan City in Accordance with Medan Mayor Regulation Number 12 of 2011
Authors: Rizal Muhammad
Published: November 2022

Mayor Regulation is a type of statutory regulation set by the mayor. However, the new Mayor's Regulations are recognized and have binding legal force as long as they are ordered by higher laws and regulations or are formed based on authority. Regulation of the Mayor of Medan Number 12 of 2011 concerning levies for permits for selling alcoholic beverages Medan City. The reason for this research is that the researcher wants to know the control of permits for selling alcoholic beverages Medan City in accordance with the Regulation of the Mayor of Medan Number 12 of 2011. This study uses the approach method used in this study is a qualitative approach which is used to describe and analyze the phenomenon. , events, social activities, attitudes, beliefs, perceptions and people individually or in groups. And the results of the study indicate that the control of permits for selling alcoholic beverages in Medan City in accordance with the Regulation of the Mayor of Medan Number 12 of 2011 has not been implemented properly and properly. This is because there are still many sellers of alcoholic beverages who do not have an official business license
Access and Usage of Electronic Resources by the Faculty Members, Students and Research Scholars of Shanmuga Industries Arts and Science College Tiruvannamalai “Thiruvalluvar University”– A Study
Authors:   Ph D Research Scholar Department of Library and Information Science, Annamalai University, Jayasankar B.
Published: November 2022

A survey becomes carried out is conducted at the Shanmuga Industries Arts and Science College Tiruvannamalai Affiliated with Thiruvalluvar University. A total quantity of 271 respondents questionnaires is issued to the respondents and 231 respondents replied and Submit the Researcher for study Members were selected and their responses turned into obtained with the assistance of the questionnaire. The findings show that customers the use of e-resources responsiveness approximately e-resources encourages users to apply such sources to the very best and the users are the usage of Department and domestic extra for getting access to the statistics E- resources turned into visible from the lower in range of revealed documents in contrast to the increase in the quantity of digital resource.
Effectiveness of Structural Teaching Program on Knowledge Regarding Effect of Junk Food on Mucosal Layer of GI Tract
Authors:   Professor, Nootan College Of Nursing, Sankalchand Patel University Visnagar, Gujrat-384315, Sivasubramanian N.
Published: November 2022

Junk food refers to fast food which are easy to make and easy to consume. Junk food also called HFSS- High fat, sugar and salt. Various type of junk food that available in market. Junk food is more popular because of experience of great test and easy transportation. It causes a lot of harmful effects on mucosal layer of GI tract and also effect on the body like obesity, diabetes, heart disease, and skin cancer. This study identified that 66.66% had a inadequate knowledge, 33.33% had moderate knowledge none of them had Adequate knowledge for pre experimental group. The study results shows that the pre-test mean value is 14 2 and pre-test SD is 3 36. The post-test mean value is 23.53 and post-test SD is 2.44. The mean difference is 9.33. The calculated‘t’ value is 12.30 is higher than the table value 1.69. The stud6 structural teaching program is very effective for improving students’ knowledge regarding effect of junk food on GI tract.
A Systematic Review on Long Term Variation of Carbonaceous Aerosols in Pm2.5 at Different Sites of “Delhi” Capital City of India
Authors:   Department of Environmental Studies, Dr. Bhimrao Ambedkar University, Khandari Campus, Agra- 282002 (UP), India, Tomar Astha
Published: November 2022

Being a criteria pollutant Fine Particulate Matter (PM2.5) exposure not only affects human health but also deteriorates environmental health, air quality and artifacts. Traffic, biomass burning and industrial activities are important contributors to ambient fine particulate matter in major cities of the world. Therefore, to reduce fine particulate matter pollution and the considerable disease burden it causes solutions to bring down ambient fine particulate matter are needed. Carbonaceous aerosols are found to be a significant contributor to fine particulate matter. These aerosols are subdivided into organic carbon and elemental carbon. Elemental carbon is released from primary sources whereas organic carbon can be released either from primary or secondary sources. This paper presents a comprehensive critical review of the assessment of fine particulate matter and its carbonaceous content in the past decade on different sites in New Delhi, the capital of India. Considerable health effects of particulate pollution have also been discussed in the paper. Critically reviewed data showed a non – significant increase in the trend of particulate matter concentration. It was also shown through the data of each study that the emission standards of WHO exceeded by 15 times whereas for NAAQS they exceeded by 5 times respectively.
A Study to Assess the Effectiveness of Planned Video Assisted Teaching Programme on Cardio Pulmonary Resuscitation among B.sc Nursing Students at Cherraan’s College of Nursing Coimbatore District
Authors:   Assistant Professor, Department of Mental Health Nursing, Hindusthan College of Nursing, Coimbatore, India, P Vethadhas
Published: November 2022

Introduction: Cardio Pulmonary Resuscitation (CPR) is an emergency lifesaving procedure that is done when someone’s breathing or heart beat has stopped. Aim To assess the knowledge of nursing students on cardio pulmonary resuscitation. Methods and Tools: A quantitative research approach was used in this study. The design was quasi experimental research design. Structured questionnaire was used to assess the effectiveness of planned video assisted teaching program on cardio pulmonary resuscitation among basic B.Sc. nursing students. Results: The standard deviation of pretest was 2.599 and posttest was 2.284. The paired “t” test was used to compare the pretest and posttest level of knowledge among basic B.Sc. nursing students. The calculated “t” value was 17.84 which were greater than the tabulated “t” value (p<0.05 level of significance). This showed that there was a significant difference between pretest and posttest level of knowledge. Hence, the stated hypothesis (H1) was accepted.
THE OPINIONS OF CHILDREN ABOUT VIRTUAL REALITY SOCIAL–EMOTIONAL LEARNING SKILLS PROGRAMME
Authors: VARDARLI Bade , ALADAĞ Mine
Published: November 2022

The purpose of this case study is to introduce Virtual Reality Social–Emotional Learning Skills Programme developed for Children (VRSELCHILD) and to reveal how children experience, perceive and react the two main components of VRSELCHILD including psychoeducation program and the software. The spread of virtual reality in recent years has accelerated the emergence of applications developed for children. For example, a child with high social anxiety will be anxious as in real life when exposed to vitrual reailty scenarios in order to better cope with the avoidance social environments. On the other hand, knowing that the virtual environment is not real allows the child to act more courageously and repeat the supported skill as often as desired. Thus, the child is better prepared for real life experience. VRSELCHILD, designed to support children's SEL skills, consists of two basic contents: "Psychoeducation Program" and "Software".This study recruited seven children (females = 4, males=3) aged between 9 and 10 years. VRSELCHILD was implemented individually with seven children during nine weeks. Researcher conducted semi-structured individual interviews with children after the implementation. Observations of counselor/researcher were also recorded via a researcher diary. The data obtained from the interviews and diaries was analyzed through descriptive analysis. The findings showed that VRSELCHILD supports the development of children’s social-emotional skills and children enjoyed learning the skills with such a programme. It has been seen that psychoeducation program, software, counselor and gamification effect dimensions within the scope of VRSELCHILD have important contributions to this development. The findings of the study are discussed regarding the effectiveness, benefits and side effects aspects of VRSELCHILD. Recommendations are provided for further program developers as well as researchers and practitioners.
The Importance of Genomics Diversity in Research
Authors: Badola Sachi , Zettler Bethany
Published: November 2022

Purpose: Genomic diversity is important in medical research and precision medicine, as appropriate disease management and drug development heavily utilizes genomic data. This article sought out to present a narrative review of limitations of genomic medicine utilization in historically underrepresented populations.

Method: A literature review was conducted, and relevant publications written on the lack of genomic diversity in research and medicine were chosen from PubMed. Additionally, the ClinVar, ExAc, and gnomAD databases were used to review variants that were reported as pathogenic or non-pathogenic in different ethnicities, with ethnicity dependent minor allele frequencies. A total of twenty-five publications were used and examined to identify common themes.

Results: Twenty-seven publications were chosen to be a part of this review, and based on the content of the publications, three different categories of genomics utilization with a problematic lack of diversity were developed: “Genes and Disease Correlation”, “Disease Management”, and “Drug Development”. The literature review also identified possible solutions and interventions for researchers and physicians to increase genomic diversity in order to ensure that the future of precision medicine is equitable for all populations. 

Conclusion: The results of this paper highlight that there are currently significant limitations to genomic medicine for underrepresented populations. By engaging, educating, and building trust with underrepresented communities, precision medicine can overcome the current lack of genomic diversity. This review recognizes the need for large multi-ethnic population studies, community representation in research, and understanding the interplay of genes, lifestyle, and environment for minorities.
Kinerja Keuangan Perusahaan Sub Sektor Rokok yang Terdaftar di Bursa Efek Indonesia Periode 2016-2020
Authors: Amrulloh Amri , Wibawa Koerniawan Dwi , Fadilla Rahma Nur , Aditya Fachri
Published: November 2022

Penilaian kinerja keuangan perusahaan sangat penting dilakukan untuk mengetahui kondisi keuangan perusahaan sehingga dapat diketahui tingkat keberhasilan perusahaan  selama periode tertentu dan sebagai bahan evaluasi bagi pihak manajemen. Data yang digunakan dalam penelitian ini yaitu laporan keuangan perusahaan sub sektor rokok yang terdaftar di Bursa Efek Indonesia periode tahun 2016-2020. Teknik analisis data dalam penelitian ini yaitu melakukan analisis rasio keuangan yang meliputi: rasio likuiditas, rasio solvabilitas, rasio profitabilitas, dan rasio aktivitas. Hasil penelitian menunjukkan  bahwa untuk rasio likuiditas PT. Hanjaya Mandala Sampoerna Tbk. dan PT. Wismilak Inti Makmur Tbk. menunjukkan kinerja keuangan dalam kondisi baik, pada rasio solvabilitas PT. Gudang Garam Tbk, PT. Hanjaya Mandala Sampoerna Tbk. dan PT. Wismilak Inti Makmur Tbk. menunjukkan kinerja keuangan dalam kondisi baik, sedangkan pada rasio profitabilitas dan rasio aktivitas kinerja keuangan perusahaan sub sektor rokok dalam kondisi yang kurang baik karena memiliki nilai yang cukup rendah dan di bawah standar industri.
Timekeeping and Immediate Monitoring of Employees by Consistently Advocating Time Consciousness and Honesty Using Enhanced Attendance Monitoring System (TIME CATCH Using EAMS)
Authors: Rivera Ronald Bautista , Asis Maricar Bulan , Bangayan Oscar Gacutan
Published: November 2022

Attendance management methods that use QR codes and face recognition technology to identify and verify an individual’s features are widely used in many aspects of people’s lives nowadays, notably in pandemic situations where contact-less systems are used. In this paper, the development of enhanced attendance monitoring system using was introduced. The Isabela State University Angadanan Campus has implemented a biometric attendance monitoring system. However, it is limited to the number of employees’ registrations, leave management and generation of Daily Time Record. The biometric system can only store 60 employees in every device, leave application and credits cannot be catered by the system and the Daily Time Record is not auto-generated and auto-formatted. For this reason, an enhanced attendance monitoring system was developed. The system uses a camera and QR Code reader to take attendance electronically, and the attendance records be saved in a database. It can store multiple number of employees, process leave application, manage remaining leave credits, and provide auto-generated Daily Time Record. This method, on the other hand, reduces the requirement for fixed materials and employees to retain records. From the developed system and the gathered data, it has addressed the problem of the conventional way of checking employee’s attendance. The general mean of 4.72 shows that the software quality of the system based on ISO 25010 is found to be functional that the users have strongly agreed on the different characteristics of the system as it addresses the issues in the current attendance monitoring system of ISU.
Optimization of the Formulation of Sago Starch Edible Coatings Incorporated with Nano Cellulose Fiber (CNF)
Authors: Kasim Rahmiyati , Bintoro Nursigit , Rahayoe Sri , Pranoto Yudi
Published: November 2022

This study aimed to produce new edible coatings based on the mixture of sago starch, cellulose nanofiber (CNF), glycerol, and tween-80.The effect of sago starch (5–10 g of starch/100 ml of distilled water), CNF (0.5–20% w/w), glycerol (10–30% w/w), and tween-80 (0.5–10% w/w) based on sago starch concentration on contact angle (CA), water vapor permeability (WVP), oxygen permeability (PO2) and tensile strength (TS) properties of the edible coatings were optimized using factorial experimental design (2k).The result showed that the linear model for all independent variables was significant (P<0.05) on all responses (dependent variable).The sago starch concentration depicted a significant (p < 0.001) positive effect on contact angle; CNF showed a statistically significant effect on WVP, PO2, and TS; tween-80 showed a significant effect on all dependent variables, whereas glycerol only affected WVP. The optimum concentrations of sago starch, CNF, glycerol, and tween-80 were predicted to be 5 g/100 ml distilled water, 20% w/w, 10% w/w, and 0.5% w/w based on sago starch, respectively to obtain the minimum contact angle, WVP, PO2, and the maximum TS. The predicted data for the optimized coating formulation were in good agreement with the experimental value. This work revealed that the potential of sago starch/CNF based coating formulation could be effectively produced and successfully applied for coating of food.
A Comparative Study on Dengue-related Knowledge, Attitude, and Practice in Hotspot and Non-Hotspot Areas in Selangor
Authors: Mustapha Siti Nor Izani , Shohaimi Shamarina , Adam Mohd Bakri , Nallappan Meenakshii , Ab Rahman Abdul Hafiz , Salari Nader
Published: November 2022

Dengue fever is a deadly vector-borne disease. Prevention strategies without specific drugs or vaccines emphasise community involvement in dengue vector control. Identifying dengue-related knowledge, attitudes, and behaviours is critical to developing more effective intervention strategies. A cross-sectional study compared the knowledge, attitudes, and practices on dengue in selected dengue hotspots and non-hotspot areas in Selangor, Malaysia. A self-administered questionnaire was distributed among 320 randomly selected residents. Data were analysed using an independent t-test and Spearman’s rank-order correlation. Despite having a good understanding of the dengue virus, most respondents (83.1%) from both hotspot and non-hotspot areas were unaware that a person could be infected with the virus more than once in their lifetime, and 62.8% agreed that dengue patients could recover without treatment. Most respondents (76.9%) agreed that buying mosquito repellent is a waste of money, and most reported not sleeping under the insecticide net at night (74.7%). Respondents from dengue hotspot areas had significantly higher attitude scores (32.00±4.60) compared to those of non-hotspot regions (28.78±5.51), t (307) = 5.674, p<0.05. There was a significant positive correlation between knowledge and attitude scores (rs=0.214, p<0.01), between knowledge and practices (rs=0.563, p<0.01), and attitude and practices (rs=0.374, p<0.01). In addition to the high levels of knowledge and practice, attitudes toward dengue must be improved to implement proper prevention measures.
Water Quality Assessment and Characterization of Rivers in Pasir Gudang, Johor via Multivariate Statistical Techniques
Authors: Mohamad Desa Muhammad Syafiq , Sulaiman Mohd Aeddy , Rajan Shantakumari
Published: November 2022

In Pasir Gudang, an accelerated industry-based economy has caused a tremendous increase and diversity of water contamination. The application of multivariate statistical techniques can identify factors that influence water systems and is a valuable tool for managing water resources. Therefore, this study presents spatial evaluation and the elucidation of inordinate complex data for 32 parameters from 25 sampling points spanning 20 rivers across Pasir Gudang, summing up to 1500 observations between 2015-2019. Hierarchical cluster analysis with the K-means method grouped the rivers into two main clusters, i.e., proportionately low polluted rivers for Cluster 1 (C1) and high polluted rivers for Cluster 2 (C2), based on the similitude of water quality profiles. The discriminant analysis applied to the cluster resulted in a data reduction from 32 to 7 parameters (Cl, Cd, S, OG, temperature, BOD, and pH) with a 99.5% correct categorization in spatial analysis. Hence, element complexity was reduced to a few criteria accountable for large water quality differences between C1 and C2. The principal component analysis produced 6 and 7 principal components after rotation for C1 and C2, respectively, where total variance was 62.48% and 66.85%. In addition, several sub-clusters were identified; two from C1 and three from C2, based on the principal contributing components. These results show that the functionality of multivariate techniques can be effectively used to identify spatial water characteristics and pollution sources. The outcomes of this study may benefit legislators in managing rivers within Pasir Gudang.
Improving Control Accuracy in Multi-Connected Digital Systems
Authors: REPNIKOVA NATALIYA , BERDNYK YURII , HNYP VLADYSLAV
Published: November 2022

The presented scientific research is relevant, because currently it is necessary to develop and implement modern control systems for technological processes. This allows increasing the accuracy of control in multi-connected digital systems, the mathematical models of which are built on the platform of the state space method. The purpose of this study is to develop a new method for improving control accuracy in multiconnected digital systems. The methodological framework of this study, determined directly for the qualitative solution of the problem, included analytical expressions that functionally not only eliminate the influence of each state and control on the rest, but also ensure high accuracy of control processes. In this scientific study, the results were obtained, standing for a methodical approach to the synthesis of vector-matrix models of regulators using feedback on the state. The vector-matrix model of the controller, combining the function of monitoring and control of feedback on the state was formed. By using computational capabilities of the mathematical apparatus adopted in the study, the matrices of the system regulators and correction coefficients were calculated. The formulated conclusions affect various aspects of the practical application of the method of determining the feedback matrix by state, deriving an analytical formula for determining the correction coefficients to ensure zero steady-state control error, as well as performing the decomposition of a digital system with the definition of a vector-matrix model of a regulator combining the functions of regulation and supervision. The materials and methods of paper fully correspond to the stated subject and can serve as a qualitative methodological basis for following research in this area
The coronavirus disease 2019 pandemic and chronic diseases
Authors: Cho Sung-il
Published: November 2022

Background: Chronic diseases contribute to 74% of annual global deaths. The coronavirus disease (COVID-19) pandemic further aggravated the burden of chronic diseases. The reasons for this adverse impact must be elucidated to develop an appropriate response.Current Concepts: COVID-19 increases the burden of chronic disease in three ways. First, chronic disease comorbidities are associated with a higher severity and fatality rate in patients with COVID-19. Second, the post COVID-19 condition results in chronic health problems. Lastly, a disruption in the system for chronic disease screening and care was observed during the COVID-19 pandemic.Discussion and Conclusion: Strong efforts are needed to mitigate the impact of the COVID-19 pandemic on chronic diseases, and to re-establish an effective system for chronic disease management.
Layanan Konsultasi Forum JARIA Mengatasi Permasalahan Pembelajaran Jarak Jauh bagi Guru di Sekolah dan Madrasah
Authors: Alperi Muzanip
Published: November 2022

Model dan Media pembelaharan yang tepat sangat dibutuhkan saat pembelajaran jarak jauh. Penelitian ini bertujuan untuk memberikan pemahaman kepada peserta Forum Belajar Ceria (Jaria) terkait model dan media pembelajaran jarak jauh. Metode penelitian ini adalah deskriptif dengan pemberikan layanan konsultasi terkait model dan media pembelajaran jarak jauh. Tahapan kegiatan yang dilakukan adalah dengan analisis kebutuhan, perencanaan, pelaksnaan, dan refkesi. Pada saat layanan konsultasi sebelum dan sesudah kegiatan diberikan instrumen pemahaman materi. Peserta yang diteliti adalah guru satuan pendidikan (madrasah dan sekolah) khususnya di Provinsi Bengkulu pada kegiatan Jaria 1, 2,3,4,5,6,7, dan 8. Pelaksanaan layanan konsultasi dilakukan secara daring dengan menggunakan Zoom Meeting ,  WhatsApp Group dan Google Classroom. Hasil kegiatan ini menunjukkan terjadi peningkatan rata-rata kesiapan media, kesiapan narasumber, tampilan materi, dan pemahaman materi peserta mengalami peningkatan. Artinya dengan layanan konsultasi melalui forum Belajar Ceria terjadi peningkatan pemahaman  materi tentang model dan media pembelajaran Jarak Jauh.
Degradation Mechanisms and Lifetime Modeling of Power Semiconductor Devices
Authors: Islam Mohammad Ariful
Published: November 2022

Lifetime modeling and predicting for power semiconductor devices has become important due to higher demands on reliability and economy, i.e. to save time and money. Understanding the degradation mechanisms of such devices in a complex interplay of thermal, mechanical, and electrical loading in often harsh environment is a very challenging task, involving the competences of electronic engineers, simulation experts, materials scientists, physicists and mathematicians – with the final goal to permit accurate prediction of failure probabilities in the ppm-range as a function of time. In this review paper, I’ve discussed previously published literature on degradation mechanisms, experimental results obtained in several studies, lifetime prediction procedure, lifetime model and some preventive measures that can be taken against permanent damage.
PENGEMBANGAN MEDIA KOMIK DALAM PEMBELAJARAN BAHASA INDONESIA TEMA CITA-CITAKU DI MI HIDAYATUN NAJAH TUBAN
Authors: I’zaati Lailatul , Pradana Akhmad Aji , Ma'rifati Rr. Kusuma Dwi Nur
Published: November 2022

Penelitian ini di latar belakangi oleh peneliti yang telah melakukan pra penelitian di MI Hidayatun Najah Tuban, dalam proses pelaksanaan kegiatan pembelajaran Bahasa Indonesia masih terpacu pada buku Yudistira serta buku lokal yang dikhususkan untuk pembelajaran MI Hidayatun Najah Tuban. Pendidik memberikan pernyataan bahwa guru lebih cendrung fokus pada buku belum menggunakan variasi media pembelajaran pada tema cita-citaku. Dari metode dan media pembelajaran yang digunakan oleh guru pada proses pembelajaran, mucul masalah ketika guru menguji pemahaman peserta didik dengan tanya jawab yang dilakukan oleh guru kepada peserta didik. Padahal dalam pembelajaran Bahasa Indonesia sudah tuntas dan paham materi Cita-Cita dan materi tentang Puisi. Rumusan masalah pada penelitian tersebut adalah bagaimana kevalidan, kepraktisan dan keefektian media komik dalam pembelajaran Bahasa Indonesia Tema Cita-citaku kelas III E di MI Hidayatun Najah Tuban, Penelitian ini menggunakan metode Research and Delevopment (R&D) yang mengambil model pengembangan 4-D. Model pengembangan 4-D melalui 4 tahap yaitu pendefinisan atau define, perencanaan atau design, pengembangan atau develop, dan penyebaran atau disseminate. Namun peneliti membatasi tahap penelitian tersebut hanya pada tahap pengembangan atau develop. Subjek penelitianya berada di kelas III MI Hidayatun Najah Tuban. Berdasarkan hasil penelitian yang telah dilakukan olek peneliti memperoleh hasil bahwa uji kevalidan dengan skor dari dua validator yaitu validator ahli materi 96% dan validator ahli media 87% dengan rata-rata hasil validasi tersebut 91,5% dengan kategori sangat valid/sangat layak melalui hasil presentase kelayakan sehingga media komik pembelajaran Bahasa Indonesia layak digunakan. Hasil uji kepraktisan dari hasil lembar observasi keterlaksanan pembelajaran yang diperoleh berdasarkan observasi terhadap pembelajaran yang telah terlaksana diperoleh skor total 10 aspek dengan hasil presentase 91% dengan kategori sangat baik. Hasil angket peserta didik diperoleh 90% yaitu peserta didik tertarik dengan media komik pembelajaran Bahasa Indonesia dapat meningkatkan pemahaman peserta didik. Hasil angket guru 83% yaitu media komik dapat meningkatkan pemahaman peserta didik dengan kategori Baik. Sehingga media komik Bahasa Indonesia praktis digunakan untuk proses pembelajaran. Keefektifan media komik dilihat dari peningkatan hasil belajar peserta didik dengan kategori tinggi menurut kategori skor gain dengan jumlah 19 dengan kategori tinggi. Pengembangan ini dapat disimpulkan Media Komik Pembelajaran Bahasa Indonesia termaksud kategori sangat valid, praktis, dan efektif digunakan dalam pembelajaran Bahasa Indonesia untuk meningkatkan pemahaman siswa kelas III MI Hidayatun Najah Tuban.
Antarctic atmospheric Richardson number from radiosoundings measurements and AMPS
Authors: Yang Qike , Wu Xiaoqing , Hu Xiaodan , Wang Zhiyuan , Qing Chun , Luo Tao , Wu Pengfei , Guo Yiming
Published: November 2022

Abstract. Monitoring a wide range of atmospheric turbulence over the Antarctic continent is still tricky, while the atmospheric Richardson number (Ri ; a critical parameter determining the possibility of turbulence could be triggered) is easier to obtain. The Antarctic atmospheric Ri, calculated using the temperature and wind speed, was investigated using the daily results from the radiosoundings and forecasts of the Antarctic Mesoscale Prediction System (AMPS). Radiosoundings for a year at three sites (McMurdo, South Pole, and Dome C) were used to quantify the reliability of the AMPS forecasts. The AMPS-forecasted 1/Ri  (inverse of the Richardson number) can identify the main characteristics of atmospheric turbulence over the Antarctic continent in terms of space and time. The correlation coefficients (Rxy) of 1/Ri at McMurdo, South Pole, and Dome C are 0.71, 0.66, and 0.68, respectively, where the performance gains during the warm seasons. In addition, a model to improve AMPS-forecasted 1/Ri has been presented. The monthly median at the three sites and the seasonal median throughout the two vertical cross-sections for the AMPS forecasts are presented. One can observe that the probability of triggering turbulence is primarily concentrated near the ground. In addition, strong wind shears near escarpment regions have been found in the range of 0–5 km above the ground, thus causing atmospheric instability (or a thick boundary layer). In addition, turbulent atmospheres are likely to be triggered over the ocean, moving toward the Antarctic Plateau and becoming stable. Finally, the 1/Ri at the planetary boundary layer height (PBLH), 1/RiPBLH, has been provided as a reference standard for judging atmospheric stability. The median value of 1/RiPBLH from the combined data of two vertical cross-sections was 0.55, which was used to calculate PBLH and agree well with the AMPS forecasts (Rxy >0.72).
Transport patterns of global aviation NOx and their short-term O3 radiative forcing – a machine learning approach
Authors: Maruhashi Jin , Grewe Volker , Frömming Christine , Jöckel Patrick , Dedoussi Irene C.
Published: November 2022

Abstract. Aviation produces a net climate warming contribution that
comprises multiple forcing terms of mixed sign. Aircraft NOx emissions
are associated with both warming and cooling terms, with the short-term
increase in O3 induced by NOx emissions being the dominant warming
effect. The uncertainty associated with the magnitude of this climate forcer
is amongst the highest out of all contributors from aviation and is owed to
the nonlinearity of the NOx–O3 chemistry and the large
dependency of the response on space and time, i.e., on the meteorological
condition and background atmospheric composition. This study addresses how
transport patterns of emitted NOx and their climate effects vary with
respect to regions (North America, South America, Africa, Eurasia and
Australasia) and seasons (January–March and July–September in 2014) by
employing global-scale simulations. We quantify the climate effects from
NOx emissions released at a representative aircraft cruise altitude of 250 hPa (∼10 400 m) in terms
of radiative forcing resulting from their induced short-term contributions
to O3. The emitted NOx is transported with Lagrangian air parcels
within the ECHAM5/MESSy Atmospheric Chemistry (EMAC) model. To identify the
main global transport patterns and associated climate impacts of the 14 000 simulated air parcel trajectories, the unsupervised QuickBundles
clustering algorithm is adapted and applied. Results reveal a strong
seasonal dependence of the contribution of NOx emissions to O3.
For most regions, an inverse relationship is found between an air parcel's
downward transport and its mean contribution to O3. NOx emitted in
the northern regions (North America and Eurasia) experience the longest
residence times in the upper midlatitudes (40 %–45 % of their lifetime),
while those beginning in the south (South America, Africa and Australasia)
remain mostly in the Tropics (45 %–50 % of their lifetime). Due to
elevated O3 sensitivities, emissions in Australasia induce the highest
overall radiative forcing, attaining values that are larger by factors of
2.7 and 1.2 relative to Eurasia during January and July, respectively. The
location of the emissions does not necessarily correspond to the region that
will be most affected – for instance, NOx over North America in July
will induce the largest radiative forcing in Europe. Overall, this study
highlights the spatially and temporally heterogeneous nature of the NOx–O3 chemistry from a global perspective, which needs to be accounted
for in efforts to minimize aviation's climate impact, given the sector's
resilient growth.
The climate impact of hydrogen-powered hypersonic transport
Authors: Pletzer Johannes , Hauglustaine Didier , Cohen Yann , Jöckel Patrick , Grewe Volker
Published: November 2022

Abstract. Hypersonic aircraft flying at Mach 5 to 8 are a means for traveling very long distances in extremely short times and are even significantly faster than supersonic transport (Mach 1.5 to 2.5). Fueled with liquid hydrogen (LH2), their emissions consist of water vapor (H2O), nitrogen oxides (NOx), and unburned hydrogen. If LH2 is produced in a climate- and carbon-neutral manner, carbon dioxide does not have to be included when calculating the climate footprint. H2O that is emitted near the surface has a very short residence time (hours) and thereby no considerable climate impact. Super- and hypersonic aviation emit at very high altitudes (15 to 35 km), and H2O residence times increase with altitude from months to several years, with large latitudinal variations. Therefore, emitted H2O has a substantial impact on climate via high altitude H2O changes. Since the (photo-)chemical lifetime of H2O largely decreases at altitudes above 30 km via the reaction with O(1D) and via photolysis, the question is whether the H2O climate impact from hypersonics flying above 30 km becomes smaller with higher cruise altitude. Here, we use two state-of-the-art chemistry–climate models and a climate response model to investigate atmospheric changes and respective climate impacts as a result of two potential hypersonic fleets flying at 26 and 35 km, respectively. We show, for the first time, that the (photo-)chemical H2O depletion of H2O emissions at these altitudes is overcompensated by a recombination of hydroxyl radicals to H2O and an enhanced methane and nitric acid depletion. These processes lead to an increase in H2O concentrations compared to a case with no emissions from hypersonic aircraft. This results in a steady increase with altitude of the H2O perturbation lifetime of up to 4.4±0.2 years at 35 km. We find a 18.2±2.8 and 36.9±3.4 mW m−2 increase in stratosphere-adjusted radiative forcing due to the two hypersonic fleets flying at 26 and 35 km, respectively. On average, ozone changes contribute 8 %–22 %, and water vapor changes contribute 78 %–92 % to the warming. Our calculations show that the climate impact, i.e., mean surface temperature change derived from the stratosphere-adjusted radiative forcing, of hypersonic transport is estimated to be roughly 8–20 times larger than a subsonic reference aircraft with the same transport volume (revenue passenger kilometers) and that the main contribution stems from H2O.
The effect of the averaging period for PMF analysis of aerosol mass spectrometer measurements during offline applications
Authors: Vasilakopoulou Christina , Stavroulas Iasonas , Mihalopoulos Nikolaos , Pandis Spyros N.
Published: November 2022

Abstract. Offline aerosol mass spectrometer (AMS) measurements can
provide valuable information about ambient organic aerosols in areas and
periods in which online AMS measurements are not available. However, these
offline measurements have a low temporal resolution, as they are based on
filter samples usually collected over 24 h. In this study, we examine
whether and how this low time resolution affects source apportionment
results. We used a five-month period (November 2016–March 2017) of online
measurements in Athens, Greece, and performed positive matrix factorization (PMF)
analysis to both the original dataset, which consists of 30 min
measurements, and to time averages from 1 up to 24 h. The 30 min results
indicated that five factors were able to represent the ambient organic
aerosol (OA): a biomass burning organic aerosol factor (BBOA), which contributed
16 % of the total OA; hydrocarbon-like OA (HOA) (29 %); cooking OA (COA) (20 %); more-oxygenated OA (MO-OOA) (18 %); and less-oxygenated OA (LO-OOA) (17 %). Use of the daily averages resulted in estimated average contributions that were within 8 % of the total OA compared with the high-resolution analysis for the five-month period. The most important difference was for the BBOA contribution, which was overestimated (25 % for low resolution versus 17 % for high resolution) when daily averages were used. The estimated secondary OA varied from 35 % to 28 % when the averaging
interval varied between 30 min and 24 h. The high-resolution results are
expected to be more accurate, both because they are based on much larger
datasets and because they are based on additional information about the
temporal source variability. The error for the low-resolution analysis was
much higher for individual days, and its results for high-concentration days in particular are quite uncertain. The low-resolution analysis
introduces errors in the determined AMS profiles for the BBOA and LO-OOA
factors but determines the rest relatively accurately (theta angle around
10∘ or less).
Assessing runoff sensitivity of North American Prairie Pothole Region basins to wetland drainage using a basin classification-based virtual modelling approach
Authors: Spence Christopher , He Zhihua , Shook Kevin R. , Pomeroy John W. , Whitfield Colin J. , Wolfe Jared D.
Published: November 2022

Abstract. Wetland drainage has been pervasive in the North American Prairie Pothole Region. There is strong evidence that this drainage increases the hydrological connectivity of previously isolated wetlands and, in turn, runoff response to snowmelt and rainfall. It can be hard to disentangle the role of climate from the influence of wetland drainage in observed records. In this study, a basin-classification-based virtual modelling approach is described that can isolate these effects on runoff regimes. The basin class which was examined, entitled Pothole Till, extends throughout much of Canada's portion of the Prairie Pothole Region. Three knowledge gaps were addressed. First, it was determined that the spatial pattern in which wetlands are drained has little influence on how much the runoff regime was altered. Second, no threshold could be identified below which wetland drainage has no effect on the runoff regime, with drainage thresholds as low as 10 % in the area being evaluated. Third, wetter regions were less sensitive to drainage as they tend to be better hydrologically connected, even in the absence of drainage. Low flows were the least affected by drainage. Conversely, during extremely wet years, runoff depths could double as the result of complete wetland removal. Simulated median annual runoff depths were the most responsive, potentially tripling under typical conditions with high degrees of wetland drainage. As storage capacity is removed from the landscape through wetland drainage, the size of the storage deficit of median years begins to decrease and to converge on those of the extreme wet years. Model simulations of flood frequency suggest that, because of these changes in antecedent conditions, precipitation that once could generate a median event with wetland drainage can generate what would have been a maximum event without wetland drainage. The advantage of the basin-classification-based virtual modelling approach employed here is that it simulated a long period that included a wide variety of precipitation and antecedent storage conditions across a diversity of wetland complexes. This has allowed seemingly disparate results of past research to be put into context and finds that conflicting results are often only because of differences in spatial scale and temporal scope of investigation. A conceptual framework is provided that shows, in general, how annual runoff in different climatic and drainage situations will likely respond to wetland drainage in the Prairie Pothole Region.
Design and experiment of magnetic navigation control system based on fuzzy PID strategy
Authors: Geng Guosheng , Jiang Feng , Chai Chao , Wu Jianming , Zhu Yejun , Zhou Guiguan , Xiao Maohua
Published: November 2022

Abstract. In view of the difficulties in the navigation of facility
agricultural equipment in a greenhouse environment, which are greatly affected by environmental factors, being difficult to navigate, and low accuracy, a magnetic navigation controller suitable for greenhouse environments is
designed based on fuzzy PID (proportion integration differentiation) control and combined with the principle of
magnetic navigation control in this paper. The magnetic navigation in a greenhouse environment is realised, and the installation test is carried out on the existing agricultural machinery platform. The results show that when driving in a straight line, the straightness error is controlled at ±2.5 cm m−1, and when driving on a bend, the driving deviation is controlled at ±4.5 cm m−1. Therefore, it can be considered that the magnetic navigation control method based on fuzzy PID control designed in the greenhouse environment can effectively improve the accuracy of navigation and promote the application of facility agricultural equipment to a certain extent.
Seismic Background Noise Levels in Italian Strong Motion Network
Authors: Fornasari Simone Francesco , Ertuncay Deniz , Costa Giovanni
Published: November 2022

Abstract. Italian strong motion network monitors the seismic activity of Italy and its surrounding with more than 700 stations. Thanks to the upgrade of the stations with continuous data acquisition, it is possible to measure the noise level of the strong motion network. In this study, we used the recorded background noise to estimate the variations in the noise levels of the network. Data recorded in 2019 and 1st of January to 30th of April 2022 are used to understand the noise level of the stations and data from the COVID-19 lockdown period are used to see the effect of the anthropogenic sources on the background noise. To do that, power spectrum density is calculated for the continuous stations. It is found that more than half of the stations exceed the background noise model designed for strong motion stations by Cauzzi and Clinton (2013) in at least one of the calculated periods. Considering the characteristics of the instrumentation at the stations and their deployment often near urban areas, we focused on relatively short periods (≤5 s), interested by anthropic noises. Stations can be noisier during the day, up to 14 decibels and during the weekday, up to 5 decibels in short periods. Noise level differences between day-night decrease with an increasing period as the human-related high-frequency effects of humans are attenuated. As expected, the noisiest stations are located in densely populated areas such as center of Naples, whereas the quietest stations are located far away from cities. The swell, sea, and wind effects, on the other hand, are not observed in stations. During the COVID-19 lockdown, noise levels dropped to 6.5 decibels in daytime and 12.5 decibels on weekdays. Noise levels are reduced by around 2 decibels in 0.1 s, in which cultural noise is predominant. Furthermore, we found that the vehicles have measurable effects on noise levels.