bluuebunny/crossref_metadata_2025 huggingface dataset:
Metodologije spremljanja cen gozdnih lesnih sortimentov v izbranih državah
Authors: Ščap Špela , Zafran Janez
Published: October 2022

Monitoring the development of forest wood assortment prices is important for successful strategic planning, especially in the event of sudden changes in the wood market and in the implementation of trade policy. Revenue from forest wood assortment sales remains the most important criterion influencing the activity of forest owners or managers in intensifying forest management. The article presents data sources for prices of forest wood assortments in Slovenia and selected European countries and describes the main features of individual methods of collecting roundwood prices. After reviewing each of the methods used to collect prices for forest wood assortments, it was found that they differ from each other. In order to monitor the roundwood market, it is necessary to know and consider the criteria for defining the individual or group of forest wood assortments that are included in the statistics. However, caution should be exercised when comparing prices between individual sources, as the naming and classification of forest wood assortments varies from country to country and, in some places, from region to region. The article also compares prices for quality class B spruce logs among five different data sources for Slovenia, Austria, Germany, and the Czech Republic.
Landscape Modifications ascribed to El Niño Events in Late pre-Hispanic Coastal Peru
Authors: Delle Rose Marco
Published: October 2022

The coastal Peru, one of the driest deserts in the world, has recently experienced dramatic landscape changes and asset destruction during precipitation events due to El Niño. Nevertheless, catastrophic explanations for landscape variations and human responses to the so-called "Super" or "Mega" El Niños are recurrent in pre-Hispanic time, even if alternative hypotheses were provided in literature. A deeper understanding of the geological and archaeological record can improve the knowledge on the relationship between such a coupled atmosphere-ocean phenomenon and landscape processes. The bibliographic sources required for this purpose are scattered throughout various disciplines ranging from physical to human sciences, thus comprehensive databases were used to identify and screen the relevant studies. The results provide knowledge synthesis in order to identify critical gaps and suggest specific research goals. Inferred episodes of landscape change due to severe precipitations in late pre-Hispanic time are discussed and consistencies and inconsistencies exposed. Examples of variation in landscape response due to extensive human intervention are reported.
Behavioural Impact of Captive Management Changes in Three Species of Testudinidae
Authors: Turner Jessica T. , Whittaker Alexandra L. , McLelland David
Published: October 2022

Reptile behaviour and welfare are understudied in comparison with mammals. In this study, behavioural data on three species of tortoises were recorded before and after an environmental change which was anticipated to be positive in nature. The environmental changes differed for each population, but included a substantial increase in enclosure size, the addition of substrate material, and a change in handling procedure. A tortoise-specific ethogram was created to standardise data collection. Focal behaviour sampling was used to collect behavioural data. Changes in the duration of performance of co-occupant interaction and object interaction in the leopard (Stigmochelys pardalis) and Aldabra (Aldabrachelys gigantea) tortoises were observed following the environmental changes. The Shannon-Weiner’s diversity index did not yield a significant increase after the changes but had a numerical increase which was relatively greater for the leopard tortoise group, which had experienced the greatest environmental change. The leopard tortoises also demonstrated changes in a greater number of behaviours compared to the other species, and this was sustained over the study period. However, this included a behaviour indicative of negative affect; aggression. Whilst we are unable to conclude that welfare was improved by the management changes, there are suggestions that behavioural diversity increased, and some promotion of positive social behaviours occurred.
Constructionism and Constructivism in Computational Thinking and Mathematics Education: Bibliometric Review
Authors: Supriyadi Edi , Dahlan Jarnawi Afgani
Published: October 2022

This study intends to carry out a bibliometric analysis to answer the following research questions: What is the annual increase in publications of constructionism, constructivism, and computational thinking, and mathematics education?; Who are the most prolific writers of constructionism, constructivism, computational thinking, and mathematics education?; Which the most countries in the fields of constructivism, constructivism, computational thinking, and  mathematics education?; Who are the most frequently cited scientists? In the end, the biblioAnalysis function generates descriptive data from bibliographic data. Thus, this description has explained that these keywords are sufficient to describe the use of theory in learning computational thinking and mathematics. After we have completed our mapping, we will have a combined framework at our disposal, which will allow us to gain a deeper understanding of the possible connections that exist between constructionism, constructivism, computational thinking, and mathematics education.
Prototipe Pengamatan Budidaya Aeroponik berbasis IoT (Internet of Things)
Authors: Yazid Ihab , Ingetenta Silas Octo , Yusro Muhammad
Published: October 2022

The purpose of this senior thesis designing the prototype observation cultivation aeroponik a planting land without the media. The method of planting aeroponik is very exact in urban areas , just need to the acquisition of land for minimal equipment and their some benefit from your water , with control the creation of the circulation of the round of rotary saving water. A method of this study using a method of research and development. Prototype observation cultivation aeroponik based a IoT uses software blynk and plx-daq. Tool making arranged in gradually: needs identification, needs analysis, hardware design grow box, design software and software Blynk PLX-DAQ, tool making, trouble shooting, and testing tools. Based on the results that  prototype observation cultivation aeroponik based on the internet of things a lot of  can work on what, chill control of the operating with a steady, and three sensor like; ultrasonic sensor can read the water level, censorship dht22 can inform temperature moisture, space and sensor ph analogous electrodes can calculate ph vitamin a-b. Mix. The testing using software blynk communication with the kind of serial on arduino ethernet. shieldsPlx-daq, can record and access to ms excel, ph data in full in accordance with expected.

Penelitian ini bertujuan untuk merancang prototipe pengamatan budidaya Aeroponik sebuah penanaman tanpa media tanah. Metode penanaman aeroponik sangat tepat di wilayah perkotaan, hanya perlu lahan minim dan sedikit air, dengan mengontrol sirkulasi putaran air. Metode penelitian ini menggunakan metode penelitian dan pengembangan. Prototipe Pengamatan Budidaya Aeroponik berbasis IoT menggunakan software Blynk dan PLX-DAQ. Pembuatan alat disusun secara bertahap yaitu: Identifikasi kebutuhan, Analisis kebutuhan. Perancangan perangkat keras grow box, Perancangan perangkat lunak Blynk dan PLX-DAQ, Pembuatan alat, Trouble shooting, dan Pengujian alat. Berdasarkan hasil pengujian Prototipe Pengamatan Budidaya Aeroponik berbasis IoT dapat bekerja sesuai dengan apa yang dinginkan, dari rangkaian kendali yang beroperasi dengan stabil, dan tiga sensor seperti; sensor Ultrasonic dapat membaca ketinggian permukaan air, Sensor DHT22 dapat menginformasikan suhu kelembaban ruang, dan Sensor pH analog elektroda dapat menghitung pH vitamin A-B mix. Hasil pengujian menggunakan aplikasi Blynk sebagai komunikasi serial pada Arduino Ethernet Shields.  PLX-DAQ dapat mendata, dan mengakses data pH ke MS Excel, secara maksimal sesuai dengan yang diharapkan.
Sistem Pendeteksi Getaran Pada Koper Dengan Sensor Getaran SW420 Dan Modul SMS SIMA6 GSM Berbasis Mikrokontroller
Authors: Al Afgan Rahmat , Salsabila Michaelia Titan , Djatmiko Wisnu
Published: October 2022

This study aims to design and develop luggage information systems using RFID-based microcontrollers with vibration sensors and SIMA6 SMS modules. The method used in this study consisted of measuring the vibration sensor response and testing the instrument. The proposed system is built using 4 main components namely Arduino Mega 2560, SW420 Vibration Sensor Module, SIMA6 GSM SMS Module, and Servo Motor. The results of system testing have been successfully designed and realized. Suitcases can provide information to the luggage owner's handphone via SMS if the suitcase is slammed and gets a vibration of more than 10,000Hz.

Penelitian ini bertujuan untuk merancang dan mengembangkan sistem informasi koper menggunakan RFID berbasis mikrokontroler dengan sensor getaran dan modul SMS SIMA6. Metode yang dilakukan dalam penelitian ini terdiri dari pengukuran respon sensor getar dan pengujian alat. Sistem yang diusulkan dibangun menggunakan 4 komponen utama yaitu arduino mega 2560, modul sensor getar SW420 , modul SMS SIMA6 GSM, dan motor servo. Hasil pengujian sistem telah berhasil dirancang dan direalisasikan. Koper dapat memberikan informasi ke handphone pemilik koper via SMS jika koper dibanting dan mendapat getaran lebih dari 10.000Hz.
Alat Monitoring Detak Jantung, Kadar Oksigen Dalam Darah Dan Suhu Tubuh Berbasis Internet of Things
Authors: Nugraha Arief Wahyu , Prasetyo Ilham , Taryudi
Published: October 2022

The most common disease caused by an unhealthy lifestyle one of which is heart disease. To prevent the occurrence of heart disease symptoms in addition to having to live a healthy lifestyle that is to check the heart, then we need a tool to monitor heart health that can be done anywhere. DFRobot Firebeetle ESP32 and NodeMCU V3 ESP8266 as a microcontroller. Sensor MAX30100 to detect heart rate every 1 minute and sensor MLX90614 to detect body temperature. Added Neo-6M GPS to detect the location of this tool used. The results of the MAX30100 sensor are displayed in the Blynk application and the MLX90614 sensor will be displayed on the OLED SSD1306 and Blynk applications, an internet connection is required to transmit the data obtained by ESP32 and ESP8266 to the Blynk application. The test results of this tool show that each component is functioning properly, the percentage of error on the MAX30100 sensor in detecting a pulse rate of ± 93% and in detecting oxygen levels in the blood ± 95%, the percentage of errors in the MLX90614 sensor in detecting a body temperature of ± 95%, and GPS resolution accuracy of 3 meters to 7 meters.

Penyakit yang paling banyak terjadi yang disebabkan oleh gaya hidup tidak sehat salah satunya adalah penyakit jantung. Untuk mencegah terjadinya gejala sakit jantung selain harus menjalani pola hidup sehat yaitu melakukan pengecekan jantung, maka dibutuhkan alat untuk memonitoring kesehatan jantung yang bisa dilakukan dimana saja. DFRobot Firebeetle ESP32 dan NodeMCU V3 ESP8266 sebagai mikrokontroler. Sensor MAX30100 untuk mendeteksi detak jantung setiap 1 menit dan sensor MLX90614 untuk mendeteksi suhu tubuh. Ditambahkan  Neo - 6M GPS untuk mendeteksi lokasi alat ini digunakan. Hasil dari sensor MAX30100 ditampilkan pada aplikasi Blynk dan sensor MLX90614 akan ditampilkan pada OLED SSD1306 dan aplikasi Blynk, dibutuhkan koneksi internet untuk mengirimkan data yang diperoleh ESP32 dan ESP8266 ke aplikasi Blynk. Hasil pengujian dari alat ini menunjukan bahwa setiap komponen berfungsi dengan baik, persentase error pada sensor MAX30100 dalam mendeteksi denyut nadi ± 93% dan dalam mendeteksi kadar oksigen dalam darah ± 95%, persentase error pada sensor MLX90614 dalam mendeteksi suhu tubuh ± 95%, dan ketepatan resolusi GPS 3 meter sampai 7 meter.
ALAT PENCEGAH KEHILANGAN ANGGOTA KELOMPOK DI PENDAKIAN
Authors: Mutawakkil Farras Usamah , Khaycal Muhammad , Rifan Muhammad
Published: October 2022

Many people like the increasing community to climb, and also often move climbers who get lost on the hiking trail because the path to the top of the mountain is different. The climbers always make the climb in groups, and only group members who take it for granted from the group, so there are group members who can join or leave the group. The aim of the research design and making a system agreed by the head of the climbing group with the group members so that group members cannot get out or get lost from the group. This research method uses development research methods that involve planning, analyzing the needs of design, testing and implementation of tools. The system requirements of the fractional ascent consist of Arduino, Radio Frequency 433MHz module, buzzer, battery. The Arduino Idea Software is uses to run the Radio Frequency 433MHz module on a PC. The test results that the author has done, this tool has been running in accordance with the program created. The results obtained are that when each transmitter does not send a signal and the transmitter that is used by members is out of range, the member transmitter will send data to the receiver held by the member leader and will output a buzzer.

Banyaknya minat masyarakat yang semakin meningkat untuk melakukan pendakian, dan juga sering terjadinya pendaki yang tersesat pada jalur pendakian karna jalur yang ada untuk sampai puncak gunung berbeda-beda. Para pendaki selalu melakukan pendakian secara berkelompok, dan biasanya anggota kelompok banyak yang kelelahan sehingga beristirahat tanpa memberitahu ketua kelompok, sehingga ada kemungkinan anggota kelompok dapat tersesat atau tertinggal rombongannya. Tujuan penelitian adalah merancang dan membuat sistem pembatasan jarak ketua kelompok pendakian dengan anggota kelompoknya sehingga anggota kelompok tidak tertinggal atau tersesat dari kelompoknya. Metode penelitian ini menggunakan metode penelitian pengembangan yang meliputi perencanaan, analisis kebutuhan perancangan, pengujian dan implementasi alat. Kebutuhan sistem dari alat pecegah kehilangan di pendakian terdiri dari Arduino uno, radio frekuensi 433MHz, buzzer, baterai. Software Arduino digunakan untuk menjalankan modul radio frekuensi 433MHz pada PC. Hasil pengujian, alat ini telah berjalan sesuai dengan program yang dibuat, ketika masing-masing transmitter tidak mengirim sinyal dan transmitter yang digunakan anggota diluar jangkauan maka transmitter anggota akan mengirim data kepada receiver yang dipegang oleh ketua anggota dan akan mengeluarkan output berupa buzzer
PROTOTIPE PENGUSIR HAMA BURUNG BERBASIS INTERNET OF THINGS
Authors: Hamdani Ramdy , Ramadhan Shufhi , Syufrijal
Published: October 2022

Indonesia is an agricultural country and most of its population has an eye for searching in agriculture, especially rice cultivation. According to BPS data, rice production is not optimal because of the many obstacles in its cultivation, such as pest disturbances, especially bird pests. Farmers are often bothered by bird pests who always eat their rice so that the yields are not optimal. This study aims to create a prototype of an Internet of Things-based automatic bird repellent. This prototype uses an ESP32 Devkit as a microcontroller, a PIR sensor to detect bird pests that attack rice fields, a buzzer and a servo motor to repel bird pests, a light dependent resistor module sensor to turn on the lights when night falls, ultrasonic sensor to detect the movement of bird pests as well as its output to interfere with the presence of bird pests by emitting an ultrasonic sound that ranges from 20kHz. Notifications sent from the ESP32 Devkit to the smartphone will appear in the Blynk app. Based on the results of the study, this tool can repel bird pests automatically and the work process of the system can be monitored remotely via a smartphone that is connected to the internet network so that farmers do not need to be bothered to repel bird pests traditionally.

Indonesia merupakan negara agraris dan sebagian besar penduduknya bermata pencarian dibidang pertanian terutama budidaya padi. Produksi padi menurut data BPS belum maksimal karena banyaknya kendala dalam pembudidayaannya seperti gangguan hama terutama gangguan hama burung. Petani sering kali direpotkan oleh hama burung yang selalu memakan padi mereka sehingga hasil panen yang dihasilkan tidak maksimal. Penelitian ini bertujuan untuk membuat prototipe pengusir hama burung otomatis berbasis Internet of Things. Prototipe ini menggunakan ESP32 Devkit sebagai mikrokontroller, sensor PIR untuk mendeteksi hama burung yang menyerang area persawahan, buzzer dan motor servo untuk mengusir hama burung, sensor light dependent resistor module untuk menghidupkan lampu apabila malam telah tiba, sensor ultrasonik untuk mendeteksi pergerekan hama burung sekaligus outputnya untuk mengganggu keberadaan hama burung dengan mengeluarkan suara ultrasonik yang berkisar 20kHz. Notifkasi yang dikirim dari ESP32 Devkit ke smartphone akan muncul pada aplikasi Blynk
Government Spending, Domestic Investment, Human Development Index and Indonesian Gross Domestic Product
Authors: Sumarsono Hadi , Qodri Lutfi Asnan , Prayitno Putra Hilmi
Published: October 2022

This research investigates the linkage between government expenditure, domestic investment, national income, human development index, and economic growth in Indonesia during the period 2015-2020. This study applied the quantitative method with Common Effect Model, Fixed Effect Model, and Random effect Model to estimate the empirical model. The data in this research were gathered from these main sources, including Statistics Indonesia and the Indonesian Investment Coordinating Board. The classical assumption is also provided to meet the analysis criteria. The findings of the study indicate that government spending positively impacts Indonesian economic growth. Indeed, national income has a robust effect on economic growth. This study also confirms the crucial role in determining economic growth in Indonesia. Surprisingly, the human development index failed to support a robust spur to economic growth in Indonesia. These results contribute to the literature on economic growth and have tremendous implications for Indonesian policymakers to consider these findings.
The Readiness of Indonesian Youths Towards the Era of Digital Economy and Business
Authors: Amidjono Dwi Sulistyorini , Husodo Zaäfri A , Muchtar Asiah
Published: October 2022

The world is moving towards the digital economy and business era. Making Indonesia 4.0 was launched to prepare Indonesia ready to face the waves of change towards the Industrial 4.0 era and to be able to increase its competitiveness in the global arena. This study will share new insights into the level of readiness of the Indonesian youth to face the impact of digitalization. This study involved 8,347 youths aged 18-34 in Java who took online Financial Life Skills (FLS) training from June 2020 to April 2021. Cross-sectional data were collected through questionnaires and analyzed using an exploratory method. This study concluded that the readiness of Indonesian youth toward the digital economy and business era was still in the "developing readiness" stage and had not been supported by adequate financial literacy and digital skills. The higher readiness scores came from the youth group having a job, previous work experience, or having participated in financial literacy or soft skills training. To be better prepared to face the rapid change of the Industrial Revolution, youth need to be equipped with future skills development programs that will improve their digital skill, financial literacy, and soft skills required to complete future jobs.
PENILAIAN BAHAN AJAR MODUL MENJAHIT SAKU PADA MATA KULIAH TEKNIK JAHIT
Authors: Adiharsanti Rahmi , R. Lubis Harsuyanti , Nawimar Wesnina
Published: October 2022

This research aims to assess teaching materials in the form of modules with pocket sewing techniques. This research was conducted to experts panelists with related fields of expertise and carried out in the odd semester of 2021/2022 academic year. Pre-Expermental Method is used in this research with One-Shot Case Study model. Descriptive quantitative technique used as data analysis technique in this reasearch. Using a single variable namely the assessment of teaching materials pocket sewing module. The reasearch indicators used based on good module characteristic (Self Instructional, Self Contained, Stand Alone, Adaptive, and User Friendly) and presentation quality elements (Consistensy, Form, Organization, Attractiveness, Font Shape and Size, and Spacing). Data collected through open-close questionnaire with rating scale. Results of this research stated that assesment based on good module characteristic get 79,58% and assestment based on presentation quality elements gets 90,04%.  Assesment based on good module characteristic Self Instructional indicators gets percentage of 85,55%, Adaptive 80%, Self Contained 75%, Stand Alone 75%, and User Friendly 74,71%. And assesment based on presentation quality elements Organization indicator gets 94,28%, Consistensy with 90%, Font Shape and Size 90%, Spacing 90%, Form 86,66% and 85% Attractiveness. So the results of the pocket sewing module assessment get a good score and can be used as an alternative teaching material in the technical sewing course.
PENILAIAN MEDIA PEMBELAJARAN E-MODUL MATERI KERAH KEMEJA
Authors: Melinda Lasaret Putri , Suryawati Suryawati
Published: October 2022

This study aims to create e-module in men's shirt collar material and  to conduct the feasibility evaluation of e-module learning media in men's shirt collar material. The research evaluation was carried out by a panel of material and media experts. The research methodology used pre-experimental (one-shot case study). Research created e-module learning media that combines component such as layout, texts, audio, images, and videos using the Flip PDF Professional application assisted by CorelDRAW and Adobe Premiere Pro. E-module learning media in this men's shirt collar material has been declared very feasible based on aspects of content feasibility, linguistic aspects, presentation aspects, graphic aspects, software engineering aspects, visual communication aspects, stand alone aspects, and adaptive aspects. The results obtained for the assessment of learning media for material aspects are 88.04%, and media aspects are 82.4%, so in general the e-module learning media for men’s shirt collar material has been declared very feasible. So that e-module learning media that the researchers arranged can be used as a learning media and students can study independently.
Effects of Tourism on African Women Employment: Using Generalized Methods of Moments and Quantile Regression
Authors: voumik liton chandra , Md. Shohel , Rahman Md. Hasanur
Published: October 2022

This study aims to fill an existing gap in the empirical literature by exploring the effect of tourism on women's employment in 42 African countries. This study uses panel generalized least square (GLS), two-step System generalized methods of moment (S-GMM), and quantile regression (QR) to evaluate the data from 1996 to 2020. Using the QR method, we could examine correlations between variables outside the data's mean. The two-step System GMM corrects biases by differencing variables. To verify that extreme observations do not influence our baseline results in our sample, we dropped five nations with the top and bottom numbers of visitor arrivals. There is evidence to suggest that tourism has a substantial impact on women's employment. Models are also run to see how tourism affects the employment of women in the agriculture, industrial, and service sectors. An increase in tourism is directly related to more women moving away from agriculture and into the manufacturing and service sectors. The key contributions of this study are to emphasize the importance of tourism for women's labor force, wage efficiency, and employment generation in that sector. The findings of this study have a valuable contribution to future research and policy discussions on the impact of the tourism industry on women's employment.
Wetland health assessment using DPSI framework: A case study in Kolkata Metropolitan Area
Authors: Mohibul Sk , Sarif Md Nawaj , Parveen Neha , Khanam Nazreen , Siddiqui Masood Ahsan , Naqvi Hasan Raja , Nasrin Tania , Siddiqui Lubna
Published: October 2022

The wetland area has been threatening and degrading due to unplanned built up expansion, improper management of solid waste and sewerage water, waste water from agriculture and industrial sector, and siltation. The Kolkata Metropolitan Area is considered one of the most vital regions in terms of wetland ecosystem. Therefore, the aim of present research is to assess the factors responsible for wetland health and analyze their dynamicity by using the Driving force-Pressure-State-Impact (DPSI) framework. To assess the wetland health for the timeframe between 2011 and 2020, seventeen indicators and four sub indicators were selected to compute the weight through Analytic Hierarchy Process (AHP). The results manifested that most municipalities was in “healthy” category under pressure (P) part in 2011 while fluctuation were observed at multiple stations from 2011 to 2020 under impact (I) section. The state (S) part showed the overall transformation in water, vegetation and built-up class from 2011 to 2020. So the most dominating category was “healthy”, followed by “unhealthy” and “poor”. The highly significant factors that deteriorate the health of wetland were (B1) Population density, (B3) Road density, (B5) Per capita Sewerage generation, and (B7) Per capita solid waste generation, (D1a) BOD, (D1b) DO, (D1c) pH and (D1d) Total Coliform. The outcome of the research will contribute to develop for sustainable conservation and management of wetland ecosystem in urban area. Moreover could be applied at global level with similar geographical conditions.
Prevalence in trying smoking behavior among adolescent in rural western China and its relationship with Psychosocial factors: Evidence from Global Youth Tobacco Survey
Authors: Yuanyi Ji , Jianjun Deng , Ting Yang , Jing Zhang , Qiaolan Liu
Published: October 2022

Background: Smoking behavior is a continuous and gradual behavior, and most of the addiction of adult smokers comes from their childhood and adolescence.Once they start trying smoking, if no timely intervention measures are taken, the vast majority of smokers will become lifelong smokers.Adolescent is the most effective group in implementing tobacco control and smoking bans.The study aims to effectively evaluate the characteristics of trying smoking behavior of adolescents in rural western China and identify the key psychosocial factors to provide a scientific basis for preventing and reducing the occurrence of smoking behaviors of adolescents.
Methods: A total of 2671 students from rural middle schools in western China were surveyed using the Adolescent Health Questionnaire including Global Youth Tobacco Survey (GYTS). Structural Equation Model (SEM) was used to analyze the direct or indirect relationship between adolescent's try smoking behavior and psychosocial influencing factors.
Results: (1)Tobacco use: 28.3% of adolescents have tried tobacco products, boys are higher than girls,senior is higher than junior,and the tobacco use rate increases with the increase in monthly living expenses (P<0.05). Among the adolescents who tried to smoke, 99% of adolescents first tried to use tobacco products at the elementary and middle school.59% of adolescents reported that the reason for smoking for the first time was curiosity. 58.0% of adolescents have seen teachers smoking in school, and even 26.2% of adolescents see teachers smoking in school almost every day.(2) Social support had a complete mediating effect on try smoking behavior through mental health problems and life satisfaction (β=-0.022, 95%CI: -0.028 to -0.016).Mental health had a positive and direct effect on try smoking behavior (β=0.112,P<0.05).Life satisfaction had a negative direct impact on try smoking behavior (β=-0.125,P<0.05).Mental health problemshad a partial mediating effect on try smoking behavior through life satisfaction(β=0.016, 95%CI: 0.008 to 0.025),and the mediating effect accounted for 20.7% of the total effect.
Conclusions: Findings of this study highlight that adolescents smoking behavior is a complex psychosocial behavior. Reducing mental health problemsand promoting life satisfaction should be considered as the key target for interventions aiming to the prevalence of adolescents’ smoking behavior.
Isolated Recurrent Pleural Effusions in a Patient with Rheumatoid Arthritis in Remission for 9 Years: Case Report
Authors: Dhaheri Afra Al , Neyadi Asma Al , Naqeeb Nouf Al , Satish Karthyayani Priya
Published: October 2022

Introduction: The development of pleural effusion in patients with active rheumatoid arthritis is a relatively common entity, yet it is uncommon in patients without clinical arthritis and other clinical features of disease flare up.
Clinical Findings: This case report describes a 58 year old patient with rheumatoid arthritis treated with Sulfasalazine who developed recurrent large pleural effusion without clinical arthritis, after being in remission for nine years. Laboratory results showed neutrophilic leukocytosis, along with elevated inflammatory markers. Fluid analysis was suggestive of sterile exudative fluid, and adenosine deaminase of pleural fluid was negative. Culture and acid-fast bacilli of pleural fluid were both negative. Fluid cytology did not reveal any malignant cells. Chest X-ray showed right-sided pleural effusion, with underlying atelectasis. Clinical intervention included thoracentesis, Tazocin 4g q8 hr, prednisolone 10mg, and Sulfasalazine 1.5g. Upon hospital discharge he was prescribed oral prednisolone 5mg for 2 days, and colchicine 0.5mg daily. After 7 days he presented with a recurrence of his symptoms, X-ray revealed a new right-sided large pleural effusion. On second admission, sulfasalazine was suspended and he was switched to methotrexate. Remarkable improvement in the patient condition was noted, with an unremarkable X-ray, and remained stable three months post-discharge on his following appointments as well.
Conclusion: This report necessitates the need for early diagnosis of rheumatoid arthritis flare up, and the appropriate timely switch to the disease modifying agent for better disease control.
Using the Unified Theory of Acceptance and Use of Technology (UTAUT) and e-health literacy(e-HL) to Investigate the Tobacco Control Intentions and Behaviors of Non- Smoking College Students in China: A Cross-Sectional Investigation
Authors: Ma Yuanyuan , Zhou Mengxia , Yu Wenli , Zou Ziyue , Ge Pu , Ma Zheng Feei , Tong Yuting , Li Wei , Li Qiyu , Li Yunshan , Zhu Siya , Sun Xinying , Wu Yibo
Published: October 2022

Background: Non-smoking college students are starting to smoke in increasing numbers，which shows that their tobacco control situation seems not optimistic. The UTAUT and e-HL are commonly used models and theories to predict health behaviors, while there are few studies on tobacco control. This paper aims to study the influencing factors of tobacco control intention and behavior of non-smoking college students in China by combining the UTAUT and e-HL.
Methods: Based on the stratified sampling method, 625 college students from 12 universities were selected. Data were collected using a self-made questionnaire designed based on the UTAUT and e-health literacy scales. Data were analyzed by SPSS 22 and AMOS 26, including descriptive statistics, one-way variance analysis and structural equation model analysis.
Results: The results of one-way variance analysis showed that there were significant differences in the score of non-smoking college students’ tobacco control intention or behavior by hometowns, monthly living expenses, and parents' smoking history. Performance expectancy (r=0.117, P<0.01), effort expectancy (r =0.462, P<0.001), social influence (r=0.380, P<0.001) had direct positive effects on behavioral intention. Facilitating condition (r=0.561, P<0.001), behavioral intention (r=0.354, P<0.001) had direct positive impacts on use behavior and e-HL (r=0.373, P<0.001) had an indirect positive impact on use behavior.
Conclusions: The combination of the UTAUT and e-HL can be used as an appropriate framework to predict the influencing factors of non-smoking college students' intention and behavior of tobacco control. It is also beneficial to promote the implementation of smoke-free campus and smoke-free family projects.
Research on properties of edible films prepared from Zein, soy protein isolate, wheat gluten protein by adding beeswax
Authors: Duan Jiangkai , Zhou Qin , Fu Menghan , Cao Mengyuan , Jiang Miao , Duan Xiang
Published: October 2022

As the increasing awareness of environmental protection, the interest in the development of biodegradable materials has become increasingly popular. At present, wheat gluten protein (WGP), soybean protein isolate (SPI) and Zein have made some progress in the application of packaging materials. At the same time, beeswax (BW) is widely applied in the preparation of food coatings. In this study, composite films were prepared by adding BW to three different types of proteins. Various properties of the composite film, such as thickness, color, mechanical properties and thermal stability were tested. Our results suggested that the addition of BW significantly increased the thickness of the film. Regarding to mechanical properties, the tensile strength of all the composite films with BW were significantly decreased. The results of SEM indicated that the surface morphology of the composite films changed due to the interaction between BW and protein molecules. Besides, the addition of BW resulted in a decrease of thermal stability. The Td of the Zein film (77 ℃) and WGP film (106 ℃) were decreased to 72 ℃ and 98 ℃, respectively. The study shows that the composite films will have the opportunity to be applied in the food package field in the future and further replace the traditional petroleum-based films.
Rapid and accurate diagnosis of pulmonary tuberculosis using TB-LAMP assay in Northern India patients
Authors: Malik Monika , Singh Paras , Khayyam Khalid U , Dewan Ravindra Kumar , Kumar Neeraj
Published: October 2022

Tuberculosis (TB) is the world’s top infectious killer, especially in underdeveloped and developing countries. More sensitive, rapid, and cost-effective diagnostic tool for pulmonary tuberculosis (PTB) remains a challenge in resource limited and rural regions. In 2016, WHO approved TB-LAMP (loop mediated isothermal amplification) assay as a replacement for smear microscopy for diagnosis of PTB in adult TB suspects. However, more diverse epidemiological and clinical research should be conducted to support the deployment of the TB-LAMP program in peripheral level healthcare settings. This study analyzed the diagnostic efficacy of a quick and inexpensive TB-LAMP for the diagnosis of PTB in tuberculosis endemic Delhi-NCR Indian population. A retrospective analysis was performed on 439 cases from October 2021 to May 2022; at the National Institute of Tuberculosis and Respiratory Diseases, Hospital. The samples were accessed by PTB-site smear microscopy, Multiplex TB PCRs for IS6110 & MPB64, GeneXpert and LAMP assay. It was observed that TB-LAMP assay displayed 1.8 fold (minimum 49.2%) higher positivity rates than smear microscopy test (maximum 29.6%). In comparison to the composite reference standard, TB-LAMP assay was established to be 84.3% sensitive and 96.8 % specific for diagnosis of adult PTB samples. The positive predictive value (PPV), and negative predictive value (NPV) of the TB-LAMP assay were 88.2 (95%CI: 77.3-94.3) and 95.6 (95%CI: 94.2-96.7) respectively. Our research concluded TB-LAMP assay as essential point-of-care test as a replacement of sputum smear microscopy for diagnosis of PTB in adults suspected cases, particularly in resource-limited and rural health care settings.
Existence of two solutions for nonhomoge- neous Klein-Gordon equation with sign-changing potential coupled with Born- Infeld theory
Authors: Wang Lixia , Zhang Dong , Zhao Pingping , Xiong Chunlian
Published: October 2022

In this paper, we study the following nonhomogeneous Klein-Gordon equation with Born-Infeld theory −∆u + λV (x)u − K(x)(2ω + φ)φu = f (x, u) + h(x), x ∈ R 3 , ∆φ + β∆4φ = 4πK(x)(ω + φ)u 2 , x ∈ R 3 , where ω > 0 is a constant, λ > 0 is a parameter and 4φ = div(||φ| 2 φ). Under some suitable assumptions on V, K, f and h, the existence of multiple solutions is proved by using the Linking theorem and the Ekeland’s variational principle in critical point theory. Especially, the potential V is allowed to be sign-changing.
Mathematics Subject Classification (2010). Primary 35B33; Secondary 35J65.
Decellularized placental sponge as an excellent carrier for human mesenchymal stem cells and management of full-thickness skin wounds: an in vitro and in vivo study
Authors: Alizadeh Sanaz , Mahboobi Leila , Nasiri Modara , Khosrowpour Zahra , Khosravimelal Sadjad , Asgari Fatemeh , Gholipour-Malekabadi Mahdieh , Razavi-Toosi Seyyed Mohammad Taghi , Chauhan Narendra Pal Singh , Ghobadi Faezeh , Gholipourmalekabadi Mazaher
Published: October 2022

Skin injuries lead to a large burden of morbidity. Although numerous clinical and scientific strategies have been investigated to repair injured skin, optimal regeneration therapy still poses a considerable obstacle. To address this challenge, the decellularized extracellular matrix-based scaffolds recellularized with stem cells offer significant advancements in skin regeneration and wound healing. Herein, a decellularized human placental sponge (DPS) was fabricated using the decellularization and freeze-drying technique, and then re-cellularized with human adipose-derived mesenchymal cells (MSCs). The biological and biomechanical properties and skin full-thickness wound healing capacity of the stem cells-DPS constructs were investigatedin vitroandin vivo. The DPS exhibited a uniform three-dimensional microstructure with an interconnected pore network, 89.21% porosity, a low degradation rate, and good mechanical properties. The DPS and MSCs-DPS constructs were implanted in skin full-thickness wound models in mice. An accelerated wound healing was observed in the wounds implanted with MSCs-DPS construct when compared to DPS and control (wounds with no treatment) during 7 and 21 days post-implantation follow-up. In the MSCs-DPS group, the wound was completely re-epithelialized, the epidermis layer was properly organized, and the dermis and epidermis' bilayer structures were restored after 7 days. Our findings suggest DPS is an excellent carrier for MSCs culture and delivery to skin wounds and now promises to proceed with clinical evaluations.
Differential impacts of informal mutual versus informal individual saving mechanisms on food insecurity in Kenya: Is risk preference a factor?
Authors: Chigusiwa Lloyd , Kairiza Terrence
Published: October 2022

Informal mutual and informal individual saving mechanisms have the potential to facilitate consumption smoothing thereby abridging transitory food insecurity and concomitantly household employment of negative consumption coping strategies. Notwithstanding, the potency of Informal mutual and informal individual saving mechanisms in alleviating transitory food insecurity, individual holding of such saving mechanisms is likely to be influenced by their preference of risk among other factors. This study examined the interplay of preference for risk, Informal mutual and informal individual saving mechanisms and food security on the basis of publicly available data from the 2021 Kenya FinAccess survey. We employ the propensity score matching approach to estimate the effects of preference for risk on the household propensity to hold either informal mutual or, informal individual saving mechanisms and the impact thereof on food security. Our study offers three major findings. First, a preference for risk increases the probability of holding informal mutual saving mechanisms but is not relevant in the holding of informal individual saving mechanisms. Second, we find that informal savings increase household food security. Finally, informal mutual saving mechanisms are more efficient in increasing household food security than informal individual saving mechanisms.
Existence Study of Semilinear Fractional Differential Inclusions for Multi-term Problem
Authors: BENSAYAH Abdallah , HADJADJ Elhabib , TELLAB Brahim , MEFTAH Safia
Published: October 2022

In this paper, we study the existence of solutions for semilinear fractional dierential inclusion multi-term problem in a more general form. A xed point strategy is used to establish existence of solutions, namely Leray-Schauder xed point alternative for set-valued maps. Two cases are considered convexity and non convexity of set valued function. Illustrative examples are provided at the end of our theorems to ensure the eectiveness of our theoretical results.
Biotransformation and detoxification of saxitoxin by Bacillus flexus in batch experiments
Authors: Mohamed Zakaria A , Mostafa Yasser , Alamri Saad , Hashem Mohamed , Alrumman Sulaiman
Published: October 2022

Saxitoxins (STXs) are carbamate alkaloid neurotoxins produced by some species of cyanobacteria. They are water soluble and relatively stable the natural environment, and thereby represent a risk to animal and human health through a long-time exposure. STXs cannot be sufficiently removed by conventional water treatment methods. Therefore, this study investigates the potential STX biodegradation and detoxification by bacteria as a promising method for toxin removal. STX biodegradation experiments were conducted using Bacillus flexus SSZ01 strain in batch cultures. The results revealed that SSZ01 strain grew well and rapidly detoxified STX, with no lag phase observed. STX detoxification by SSZ01 strain was initial-toxin-concentration–dependent. The highest biotransformation rate (10µg STX L-1 day-1) was obtained at the highest initial toxin concentrations (50µg L-1) and the lowest (0.06µg STX L-1 day-1) was recorded at the lowest initial concentration (0.5µg L-1). STX biotransformation rate increased with temperature, with highest occurred at 30 ºC. This rate was also influenced by pH, with highest obtained at pH8 and lowest at higher and lower pH values. HPLC chromatograms showed that STX biotransformation peak is corresponding to the least STX analogue (disulfated sulfocarbamoyl-C1 variant). The Artemia-based toxicity assay revealed that this biotransformation byproduct was nontoxic. This suggests the potential application of this bacterial strain in slow sand filters for cyanotoxin removal in water treatment plants. Being nontoxic, this byproduct needs to be assayed for its therapeutic effects towards neurodegenerative diseases.
On stuttering generalized Yule distribution: properties and applications
Authors: Kumar C Satheesh , S Harisankar
Published: October 2022

Kumar and Harisankar (Commun.Statist.-Theor.Meth., 2020) obtain a generalized version of Yule distribution through the name ‘doubly generalized Yule distribution(DGYD)’ and indicated several applications of the distribution. Through the present article we attempt to develop an order k version of the DGYD and discuss some of its important properties such as mean, variance, expressions for its probability generating function (p.g.f) and recursion formulae for its probabilities, raw moments and factorial moments. Further we attempted the estimation of the parameters of this model by the method of maximum likelihood. The distribution has been fitted to some real life data sets for illustrating its practical relevance. The likelihood ratio test procedure is applied for examining the significance of the parameters and a simulation study is conducted for evaluating the performances of the maximum likelihood estimators of the parameters of the DGYD.
Classification code: Classification code:60E05;62E15
Crystallization rate model of tunnel drainage pipes in karst areas
Authors: Wang Yongdong , Liu Kai , Wang Jie , Qi Chufan , Chen Yuanyuan , Shi Chen , Du Pengxin , Zhou Tianyue
Published: October 2022

The crystallization blockage of the tunnel drainage pipes in karst areas often threatens the normal construction of tunnels and affects operation of drainage systems. Based on basic theory of CaCO3 crystallization, this study analyses the law of the crystalline scale formation rate of tunnel drainage pipes in karst areas through three mass transfer mechanisms: convective mass transfer, molecular diffusion and wall ion reactions, obtains the calculation model of crystalline scale formation rate of drainage pipes, and verifies model by simulating crystalline scale formation tests of tunnel drainage pipes. The results show that factors such as the flow rate of karst water, the inner diameters of tunnel drainage pipes, the molecular diffusion coefficient, the dynamic viscosity of karst water, the molecular diffusion coefficient of calcium carbonate, the temperature of karst water, and the slopes of tunnel drainage pipes have certain influences on the crystallization of the tunnel drainage pipes in karst areas, and they promote or inhibit the formation of scale layers on the inner walls of the tunnel drainage pipes in karst areas by affecting the efficiency of convective mass transfer, molecular diffusion and wall ion reactions; under different test conditions, the average relative errors between the calculated results of the crystalline scale formation rate of drainage pipes and those of the pipes in the test group are 9.1%, 13.7%, 14.2% and 16.1% respectively. Considering the scouring effect of water flow on crystalline scale layers, although there are certain errors in the results, this does not affect the overall results
Extension of CODAS Method Under Cubic Pythagorean fuzzy set for Multi-Criteria Decision Making Problems
Authors: Rahim Muhammad
Published: October 2022

Multi-criteria decision-making (MCDM) approaches are effective and reliable to solve problems with uncertain conditions. The Cubic Pythagorean fuzzy set (CPFS) is the newest model of fuzzy set theory. The aim of this article is to develop cubic Pythagorean fuzzy Combinative Distance-based assessment (PCF-CODAS) by combining CODAS with CPFS, to solve MCDM problems. This method employs the Euclidean distance (ℰ𝒟̅̅̅̅) as the major measure and Taxicab distance (𝒯𝒟̅̅̅̅) as the secondary measure to determine the desirability of the alternative. These distances are calculated with the negative-ideal solution. Furthermore, an example is provided to assess the practicality of the proposed methodology. We also provided a comprehensive sensitivity study to test the CPF-CODAS results and compare them with some existing MCDM methods. These evaluations reveal that the proposed methodology is efficient and the results are stable.