bluuebunny/crossref_metadata_2025 huggingface dataset:
MACHINE LEARNING Y MODELIZACIÓN PREDICTIVA PARA LA TARIFICACIÓN EN EL SEGURO DE AUTOMÓVILES
Authors: Guillen Montserrat , Pesantez-Narvaez Jessica
Published: November 2022

Abstract Historical records of insured policy holders constitute an ideal environment for the development of machine learning algorithms. These procedures are implemented on databases in order to extract knowledge. Here we explore different approaches to the prediction of claims and premiums in the automotive industry, comparing their implementation in a real sample, randomly divided into training and testing. We propose measures to help in the evaluation of the methods and their practical implication for the prediction of rare events and premium calculation. The main conclusion is that the dispersion of prices, and specifically the difference between the maximum pure and minimum premium, can become very different according to the predictive method used. Keywords: data science, artificial intelligence, nonlife insurance, premiums, claims Resumen La información histórica de los asegurados constituye un entorno idóneo para el desarrollo de los algoritmos machine learning, cuya finalidad es extraer conocimiento a partir de bases de datos. En este artículo exploramos diversas aproximaciones a la predicción de la siniestralidad y las primas del ramo del automóvil, comparando su implementación en una muestra real, dividida aleatoriamente en muestras de entrenamiento y test. Proponemos medidas para ayudar en la valoración de los métodos y su implicación práctica para la predicción de eventos pocos frecuentes y el cálculo de primas. La principal conclusión es que la dispersión de precios, y concretamente la diferencia entre la prima pura máxima y mínima, puede llegar a ser muy diferente según el método predictivo utilizado. Palabras clave: ciencia de datos, inteligencia artificial, seguros generales, primas, siniestros
Longevidad de los conductores y antigüedad de los vehículos: impacto en la severidad de los accidentes
Authors: Ayuso Mercedes , Santolino Miguel
Published: November 2022

Abstract Differences on the traffic accident severity between new and old vehicles are analyzed, taking into account the association between the age of the vehicle and the age of drivers. We showed that the ageing of the Spanish vehicle fleet is associated with the severity of motor injuries, especially significant in case of drivers over 75 years driving vehicles older than 12 years. The age of the driver and the age of the vehicle are two main risk factors considered in insurance pricing. In addition, the severity of claims has a direct impact on the estimation of reserves. Keywords: car fleet, elderly drivers, bodily injury severity, technological improvements, road safety systems Resumen Analizamos las diferencias en la gravedad de los siniestros que afectan a vehículos nuevos y antiguos, teniendo en cuenta la asociación entre la antigüedad del vehículo y la edad avanzada de los conductores. El envejecimiento del parque automovilístico muestra asociación con la gravedad de las lesiones, más pronunciada en el caso de los conductores mayores de 75 años cuando conducen vehículos de antigüedad superior a los 12 años. La edad del conductor y la antigüedad del vehículo son factores de riesgo fundamentales en el cálculo de primas. Además, la gravedad de los siniestros impacta directamente en el cálculo de reservas. Palabras clave: parque de vehículos, conductores mayores, gravedad de las lesiones, tecnología del automóvil, nuevas medidas de seguridad
Algoritmos de machine learning para la detección del fraude en el seguro de automóviles
Authors: Badal Valero  , Badal Valero Elena , Sanjuán Díaz Andrés , Segura Gisbert Jorge
Published: November 2022

El fraude en el seguro de automóvil ha aumentado considerablemente en los últimos años, indudablemente impulsado por la crisis económica. Este incremento significativo del número de reclamaciones fraudulentas, así como los nuevos requerimientos asociados con Solvencia II, conducen a un mayor control y asignación de recursos contra el fraude por parte de las aseguradoras. Por estas razones, la importancia del uso de avanzadas técnicas de predicción para la detección de accidentes sospechosos está más que justificada. En este artículo, se presentan diversas metodologías de base estadística y algoritmos de aprendizaje automático que permiten el análisis y la detección de tales afirmaciones.
Estimación de modelos de mortalidad estocástica para Chile
Authors: Santolino Miguel , Moyano Silva Pablo Andrés , Pérez Marín Ana María , Santolino Miguel
Published: November 2022

En este artículo se estiman los modelos de Lee-Carter, Renshaw-Haberman y Cairns-Blake-Dowd, expuestos en el marco de modelos de mortalidad estocástica edad-periodo-cohorte generalizados, con datos de mortalidad de Chile. El modelo de Lee-Carter con distribución binomial resulta ser el más adecuado para describir la evolución de la mortalidad en Chile. Se muestra una aplicación de la construcción de tablas de mortalidad para el cálculo de primas en seguros de vida, y se comparan con las obtenidas utilizando la tabla de mortalidad M95 (publicada por el regulador en Chile). Se concluye que las tablas M95 parecen adecuadas para garantizar la solvencia. Finalmente, se calcula la esperanza de vida al nacer en el año 2019 y en el año 2050 por sexo.
Dependencia entre garantías en el ramo autos de una empresa aseguradora. Un análisis a través de la Teoría de cópulas
Authors: Ruiz Arellano Carmen , Ruiz Arellano Carmen
Published: November 2022

En el presente trabajo se trata de analizar las relaciones existentes entre distintas garantías del seguro de autos a través de la aplicación de la teoría de cópulas. El análisis de los datos permite arrojar luz sobre las relaciones de dependencia existentes entre los riesgos cubiertos por las pólizas a través de diversas funciones y, cómo de ellas se derivan importantes efectos sobre la segmentación de los clientes y las formas de tarificación.
Dynamic distances between stock markets: use of uncertainty indices measures
Authors: Bolancé  , Acuña Carlos A. , Bolancé Catalina Bolancé , Torra Salvador
Published: November 2022

In this study we consider how to more accurately identify the possible impact of systemic risk on spatial dependence related to the most significant financial crises over the last 17 years: the Lehman Brothers bankruptcy, the sub-prime mortgage crisis, the European debt crisis, Brexit and the COVID-19 pandemic which has also affected the financial markets. We analyse two new dynamic distances applied to stock markets based on exogenous criteria known as the World Uncertainty Index (WUI) and our proposed Google Trends Uncertainty Index (GTUI). We address the feasibility and benefits of these dynamic distances compared to an alternative criterion based on hours. Using the new proposed dynamic distance to obtain the Moran’s I statistic, we analyse the spatial dependence between the losses of 46 stock markets.
Rapid Access to 2-Substituted Bicyclo[1.1.1]pentanes
Authors: MacMillan David W. C. , Garry Olivia L. , Heilmann Michael , Chen Jingjia , Liang Yufan , Zhang Xiaheng , Ma Xiaoshen , Yeung Charles S. , Bennett David Jonathan
Published: November 2022

The replacement of aryl rings with C(sp3)-rich structures has garnered significant interest in drug discovery due to the potential for improved pharmacokinetic properties upon substitution. In particular, 1,3-difunctionalized bicyclo[1.1.1]pentanes (BCPs) have been widely adopted as bioisosteres for para-substituted arene rings, appearing in a number of lead pharmaceutical candidates. Due to their medicinal importance, multiple methods have been developed to efficiently synthesize these 1,3-difunctionalized BCPs. However, despite the pharmaceutical value of 2-substituted BCPs as replacements for ortho- or meta-substituted arene rings, general and rapid syntheses of these scaffolds remain elusive. Current approaches to 2-substituted BCPs rely on installation of the bridge substituent prior to BCP core construction, leading to lengthy step counts and often non-modular sequences. While challenging, direct functionalization of the strong bridge BCP C–H bonds would offer a more streamlined pathway to diverse 2-substituted BCPs. Here we report a generalizable synthetic linchpin strategy for bridge functionalization via radical C–H abstraction of the BCP core. Through mild generation of a strong hydrogen atom abstractor, we rapidly synthesize novel 2-substituted BCP synthetic linchpins in one pot. These synthetic linchpins then serve as common precursors to complex 2-substituted BCPs, allowing one step access to a number of previously inaccessible electrophile and nucleophile fragments at the 2-position via two new metallaphotoredox protocols. Altogether, this platform enables the expedient synthesis of four pharmaceutical analogs, all of which show similar or improved properties compared to their aryl-containing equivalents, demonstrating the potential of these 2-substituted BCPs in drug development.
Influence of a Temperature Driven Structural Phase Transition on the Ionic Conductivity of Na6Mn(SO4)4 Vanthoffite System
Authors: Mazumder Madhulika , Pati Swapan K
Published: November 2022

Sodium Ion Batteries have emerged as practicable successors of the Li-ion battery technology with respect to performance, availability and safety. However, to address the ever-growing demand of improving energy density and capacity, it is important to invest into the research of materials that can serve as efficient battery components and ensure high operational voltages along with long term stability. Polyanionic sulfate materials are known for their high cathodic efficiency owing to their energy densities that arise from electronegativity of sulfate anions. The Vanthoffite class of compounds, with their open framework skeletons, have been explored experimentally as good ionic conductors, which show a temperature dependent ionic conductivity. A superionic phase transition was found in the Mn based system at 445 °C. This structural transition is reversible and is a cumulative effect of the changes in the local topology. Our theoretical calculations provide a mechanistic insight into this phase transition and also establishes Na6Mn(SO4)4 to be an efficient cathode material for sodium ion batteries.
Monovalent Germanium Radical Stabilized by a Phenalenyl Scaffold
Authors: Kodama Takuya , Uchida Kenta , Nakasuji Chihiro , Kishi Ryohei , Kitagawa Yasutaka , Tobisu Mamoru
Published: November 2022

A monovalent (Non-Gomberg type) germanium radical 1 stabilized by phenalenyl-based bidentate ligand was synthe-sized. Because of the high thermal stability originating from spin delocalization over the phenalenyl moiety, it was possi-ble to isolate compound 1 in crystalline form by sublimation at ca. 300 °C. ESR spectra, crystallographic analysis, theo-retical calculations, and reactivities with carbon radicals suggest that the spin of 1 is distributed on the phenalenyl moie-ty, while 1 behaves as a germanium-centered radical in its reactions with C2Cl6, PhSSPh, and p-benzoquinone to form Ge−E (E = Cl, S, O) bonds.
Assessment of Knowledge, Attitude, and Practice Regarding Usage of Masks and Medical Gowns among Postgraduate Students
Authors: Rachita* T , Yadalam Umesh , Raghava Vijay , Bose Aditi , Pratim Roy Partha , Prakash Nomitha
Published: November 2022

Background and Aim Coronavirus disease 2019 COVID-19 may spread through respiratory droplets released by infected individuals during coughing sneezing or speaking. A major concern during the coronavirus disease 2019 pandemic has been protection of clinicians and other health care workers from severe acute respiratory syndrome coronavirus SARS CoV-2 infection by respiratory aerosol and contact transmission. This study was designed to assess the knowledge attitude and practice regarding usage of masks and medical gowns among postgraduate students.Methods A cross-sectional study was conducted among 400 postgraduate students. The questionnaire was designed comprising of 15 multiple choice questions based on Likert scale Five point that included questions on knowledge attitude amp practice towards awareness of masks and medical gowns. Chi square test was used to compare the distribution of responses to knowledge attitude and practice based questions.Results The mean value of knowledge was 4.178plusmn0.6513 mean value of attitude was 3.303plusmn1.0624 and mean value of practice was 4.016plusmn0.6855.Conclusion Postgraduate students demonstrated good knowledge and practice towards the masks and medical gowns whereas the attitude was still truncated.
Clostridioides difficile Infection
Authors: P S Shankar
Published: November 2022

In the past decade Clostrdioides difficile has become a leading enteric pathogen causing antibiotic-associated diarrohoea and colitis. The manifestations range from diarrhoea to life-threatening damage to the large intestine. It is noted as a nosocomial and community acquired infection in most of the countries including India. It affects elderly persons most commonly in hospital settings. Actual burden of C. difficile infection in India is underestimated due to paucity of diagnostic techniques. Reports from different regions of India have shown a varying prevalence from 4 to 37 The condition presents with diarrhoea and abdominal cramps. Severe cases may lead to fulminant colitis. Metronidazole andor vancomycin are the drugs of choice in the treatment.
AGRICULTURAL MULTIFUNCTIONALITY FOR SUSTAINABLE DEVELOPMENT IN MALAYSIA: A CONTINGENT VALUATION METHOD APPROACH
Authors: Pek Chuen Khee , Ee Fang , o Fo
Published: November 2022

Agriculture multifunctionality highlights the importance of non-food benefits as joint products of agriculture. A study on the non-food benefits of agriculture is important to explore the potential of innovating the agricultural industry for sustainable development. The societal influence of agriculture multifunctionality (AMF), for instance job opportunities, more environmental-friendly crop-production methods and food security, is not much known, especially in Malaysia. Thus, the objectives of this study are to estimate the economic value and the factors influencing willingness-to-pay (WTP) for AMF. Additionally, there are vast potentials in AMF to support the UN Sustainable Development Goals 2, 8 and 12. A contingent valuation (CV) with two payment solicitation formats was commissioned on respondents in Kuala Lumpur to study the WTP an agricultural premium of the purchase values of agricultural products to support AMF. The findings support the direction of innovating the agricultural industry through AMF as one of the forerunners of sustainable growth for developing countries like Malaysia. Although only half of the respondents vowed their WTP for AMF, it is observed that households, which spend more on agricultural products such like vegetables, fruits and related goods are having higher odds ratio of WTP for AMF. The odds ratios change to values of more than 1.00 with spending, which was three times the mean value. And that payment card format begets higher odds ratio of WTP for AMF compared to open-ended CV method format. The findings encourage entrepreneurs, especially the youth to venture into the innovative non-food benefits of agriculture for more responsible usage of our natural resources and decent economic growth.
FALL ARMYWORM OUTBREAKS IN ASIA: ANALYZING THE STRATEGIES TO CONTROL
Authors: Joaty Jannatul Yeasmin , Rahman Md. Mamunur , Amin Md. Ruhul , Rahman Khan Md. Arifur
Published: November 2022

Fall armyworm (Spodoptera frugiperda) is a Lepidopteran moth of Noctuidae family. Due to its polyphagous characteristic with a large host range, strong migration ability, high fecundity (average egg production per female is about 1500) and lack of diapause has already contributed to its invasiveness in America and Africa. Recently it has been introduced in Asia in the year 2018. Though it has been only around three years of Fall armyworm (FAW) introduction, it has already spread into many Asian countries and on the way to cause havoc. Though it can infest many crops, its main target and maximum yield loss has occurred in case of Maize. In America and Africa, farmers are already well known to this pest and have adapted themselves to reduce crop loss to some extent by undertaking several management options. As this pest is completely new to Asia, farmers do not know much about its biology, nature of damage and control measures. And their misdiagnosis of the pest leads to panic and increased crop loss. Therefore, it is very important to increase awareness among the farmers to identify its attack on the right time to take suitable control measures as well as preventive measures for upcoming cropping seasons. Some of the cultural, mechanical, biological and chemical control measures those were effective in reducing its infestation outside Asia, has also found to be effective inside Asia. Collaboration of these control measures according to the field condition is main concern for the cultivators. But the integrated pest management option alone can also help to keep FAW population much below economic injury level and prevent its invasiveness as a tool of sustainable management for ensuring food security.
Discovery of RUF6 ncRNA–interacting proteins involved inP. falciparumimmune evasion
Authors: Diffendall Gretchen M , Barcons-Simon Anna , Baumgarten Sebastian , Dingli Florent , Loew Damarys , Scherf Artur
Published: November 2022

Non-coding RNAs (ncRNAs) are emerging regulators of immune evasion and transmission ofPlasmodium falciparum. RUF6 is an ncRNA gene family that is transcribed by RNA polymerase III but actively regulates the Pol II–transcribedvarvirulence gene family. Understanding how RUF6 ncRNA connects to downstream effectors is lacking. We developed an RNA-directed proteomic discovery (ChIRP-MS) protocol to identify in vivo RUF6 ncRNA–protein interactions. The RUF6 ncRNA interactome was purified with biotinylated antisense oligonucleotides. Quantitative label-free mass spectrometry identified several unique proteins linked to gene transcription including RNA Pol II subunits, nucleosome assembly proteins, and a homologue of DEAD box helicase 5 (DDX5). Affinity purification of Pf-DDX5 identified proteins originally found by our RUF6-ChIRP protocol, validating the technique’s robustness for identifying ncRNA interactomes inP. falciparum. Inducible displacement of nuclear Pf-DDX5 resulted in significant down-regulation of the activevargene. Our work identifies a RUF6 ncRNA–protein complex that interacts with RNA Pol II to sustain thevargene expression, including a helicase that may resolve G-quadruplex secondary structures invargenes to facilitate transcriptional activation and progression.
Геохимические характеристики вулканических пород Западного Прибайкалья и Сирии как показатели источников деламинированной континентальной литосферы
Authors:   Institute of the Earth's Crust SB RAS, Ailo Yu. ,   Al-Furat University,   Irkutsk State University, Rasskazov S.V. ,   Institute of the Earth's Crust SB RAS,   Irkutsk State University, Yasnygina T.A. ,   Institute of the Earth's Crust SB RAS, Chuvashova I.S. ,   Institute of the Earth's Crust SB RAS,   Irkutsk State University
Published: November 2022

Volcanic rocks of the Western Baikal region and Syria have similar geochemical characteristics of the sources due to the processes of delamination of the lithosphere, which entailed the isolation of the crustal and restitutic components of igneous melts. Delamination of the lithosphere of the Western Baikal region, which was developed during the transition from the South Baikal depression to the inversion part of the Tunka valley, is confirmed by seismic tomography data. Demination of the lithosphere of Syria is assumed by geochemical characteristics of volcanic rocks. By analogy with the Western Baikal region, which experienced the influence of the Indo-Asian convergence in the late Cenozoic, the development of the delamination of the lithosphere of Syria is associated with the deformation field of the convergent interaction of the Arabian plate and Eurasia, in which the structures of the Levantine basin and the dead sea fault system took shape
Model Project Based Learning terhadap Learning Plateau Mata Pelajaran Lintas Minat Era Merdeka Belajar
Authors: Arlina Ulik , Suroso Suroso , Farid Muhammad , Noviekayati IGAA
Published: November 2022

Model pembelajaran di era merdeka belajar yang ditawarkan adalah Project Based Learning (PjBL) yang menitikberatkan pada proyek dan melibatkan siswa secara aktif. Pembelajaran lintas minat perlu diwaspadai apalagi ditambah banyaknya beban tugas (courseload) yang diberikan

siswa sehingga merasa jenuh. Tujuan penelitian adalah untuk mengetahui pengaruh PjBL pada Mata Pelajaran Fisika Jurusan IPS terhadap Kejenuhan Belajar (Learning Plateau) siswa SMA di Era Merdeka Belajar. Desain penelitian adalah penelitian eksperimen Posttest Only Design dengan variabel bebas PjBL, variabel terikatnya Learning Plateau.. Populasinya sebanyak 4 kelas XI IPS dengan jumlah 124 siswa. Sampelnya secara cluster random sampling, berjumlah 62 siswa. Instrumen yang digunakan adalah skala Kejenuhan Belajar. Hasil Uji Hipotesis diperoleh t = 1,956 (p < 0,05). Temuan ini menunjukkan bahwa ada perbedaan signifikan Learning Plateau antara kelompok eksperimen dengan kelompok kontrol. Memiliki koefisien determinasi 0,0599, artinya pengaruh Model PjBL terhadap Learning Plateau sebesar 5,99% sedangkan sisanya dipengaruhi oleh variabel lain. Learning Plateau Kelompok Eksperimen lebih rendah (Mean = 103,69) daripada Learning Plateau kelompok kontrol (Mean = 111,53). Hal ini menunjukkan hipotesis penelitian yang menyatakan Learning Plateau kelompok eksperimen lebih rendah daripada kelompok kontrol terbukti/diterima. Uji Mann Whitney U Test, Z = 2,899 (p<0,05). Temuan ini menunjukkan ada perbedaan signifikan prestasi belajar Fisika antara kelompok eksperimen dengan kelompok kontrol. Nilai Fisika kelompok eksperimen (Mean = 73,13) lebih tinggi dari kelompok kontrol (Mean = 61,33). Artinya pembelajaran Model PjBL berpengaruh terhadap prestasi belajar Fisika siswa.

Kata Kunci: Learning Plateau (Kejenuhan Belajar), Model Project Based Learning (PjBL)
Efektivitas Terapi Reminiscence untuk Mengurangi Depresi pada Lansia dengan Penyakit Kronis
Authors: Hariman Yashinta Nurisaraswati , Wismanto Yohanes Bagus , Yudiati Erna Agustina
Published: November 2022

Old age is the last period of life, where at this time, the elderly experience setbacks in various aspects of life, especially in physical, psychological, and social functions. Elderly people with chronic diseases tend to be helpless in dealing with their chronic diseases, so that elderly people with chronic diseases are prone to depression. The purpose of this study was to examine the effect of Reminiscence Therapy in reducing depression in the elderly with chronic diseases. This study involved 5 elderly participants with chronic diseases who had major depression. The research method used is one group pretest-posttest design. Based on the results of the Wilcoxon Signed Rank Test, there was a significant difference in depression scores between before and after being given Reminiscence Therapy (0.023; p<0.05). So, it can be concluded that Reminiscence Therapy can reduce depression in the elderly with chronic diseases.
The importance of soil and vegetation characteristics for establishing ground-nesting bee aggregations
Authors: Tsiolis Konstantinos , Potts Simon , Garratt Michael , Tilston Emma , Burman Joseph , Rintoul-Hynes Naomi , Fountain Michelle
Published: November 2022

Most bee species are ground-nesters, yet knowledge on the nesting behaviour of this diverse group remains sparse. Evidence on the effectiveness of ground-nesting bee species as crop pollinators is growing, but there is limited information on their nesting habits and preferences and how to manage habitats to enhance populations on farms. In this study, artificially prepared plots of bare soil were constructed with the aim to attract ground-nesting bees to nest in a commercial orchard in Kent, UK. Nine soil parameters were measured to determine their preferred soil properties: hydraulic conductivity, soil compaction, soil moisture, soil temperature, soil stoniness, soil organic matter, soil root biomass, soil texture and vegetation cover. Eighteen non-parasitic ground-nesting bee species (7 Andrena, 9 Lasioglossum, 1 Halictus and 1 Colletes spp.) were recorded in the study plots. Soil stoniness and soil temperature at 10cm depth were positively correlated, and vegetation cover and hydraulic conductivity were negatively correlated with the number of ground-nesting bees on the plots. We show that artificially created habitats can be exploited for nesting by several ground-nesting bee species. This study’s findings can inform management practices to enhance ground-nesting bee populations in agricultural and urban areas.
Embedded system training based on Arduino to improve software programming knowledge for vocational students
Authors: Winarno Idris , Barakbah Aliridho , Pramadihanto Dadet , Sesulihatien Wahjoe Tjatur , Harsono Tri , Dewantara Bima Sena Bayu , Setiawardhana Setiawardhana , Fariza Arna , Syarif Iwan , Badriyah Tessy , Iskandariansyah Ilham , Susanti Puspasari
Published: November 2022

Vocational high school students majoring in engineering, who are the successors to technology developers in society, need hard skills to enter the workforce. However, the students of SMK Negeri 2 Bangkalan have not received knowledge about embedded systems. In supporting this need, Master in Applied Informatics and Computer Engineering Program at Politeknik Elektronika Negeri Surabaya held a community service program by holding practice-based training on Arduino Uno-based embedded systems. This program is aimed at vocational high school students so that they can improve their abilities and skills in hardware programming and embedded. The method used in this activity is workshop-based training. The workshop includes a basic explanation of recognizing Arduino and embedded systems, a simple Arduino circuit practicum, and questions and answers between tutors and trainees. The results achieved from this activity are indicated by the results of the training evaluation questionnaire. In general, the training material is considered to be in accordance with the need to add insight, knowledge, skills, and expertise. In addition, the practice-based training on Arduino Uno-based embedded systems has provided benefits for students to use technology in their daily lives.
Monitoring of nutritional status to children by Integrated Healthcare Center as stunting early detection
Authors: Erawati Ni Ketut , Sugandini Wayan , Juliani Made
Published: November 2022

One of the strategic steps in the effort to deal with stunting nutrition is the use of Integrated Healthcare Center (Posyandu). Posyandu as the front line that can provide information to parents about the nutritional status of children, and Posyandu components that are no less important are cadres. The skills of cadres in determining nutritional status through anthropometric measurements are needed so that they can provide appropriate information for the community, but cadre education activities related to children under five nutrition have not been carried out for a long time. This service is carried out with the aim of providing re-education to cadres on monitoring the nutritional status of children under five through anthropometric measurement methods. The target of this activity is the cadres of the Posyandu in Tegallinggah Village, totaling 15 people. Through counseling and practicing anthropometric measurements, it is hoped that the knowledge and skills of cadres in determining the nutritional status of toddlers will increase. Evaluation of this activity was carried out through pre-test and post-test methods on cadres and the results were obtained after being given refresher on monitoring children under five nutrition, 80% of cadres had knowledge in the good category and 100% of cadres were able to measure Height (TB) and Weight (BB) correctly.
Training on making kombucha tea from snake fruit peel and butterfly pea flower
Authors: Damayanti Astrilia , Megawati Megawati , Astuti Widi , Suwandi Luluk Arvi Cahyaning , Saputra Reyhan Dwi , Putrie Melanie Hartalia
Published: November 2022

Snake fruit peel is an organic waste that is often not utilized, while the flower of the butterfly pea is known as a natural dye for food and beverages. The COVID-19 pandemic causes susceptibility to the human body. Therefore, it is necessary to process healthy drinks in order to utilize organic waste. This community service program activity aims to introduce fermented food processing to the community, especially the Family Welfare Development (PKK) Group RT 3 RW 3, Ngijo Village, Gunungpati District, Semarang City by utilizing snake fruit peel (Salacca zalacca) and butterfly pea flower (Clitoria ternatea) as kombucha tea. The method of this program is in the form of delivering material either through posters, videos, demonstrations, and youtube links. A positive response was given by community after conducting a taste test on the product that was socialized in the form of many questions submitted including other alternative raw materials and the volume of kombucha tea served. This program has the potential to foster community motivation in entrepreneurship so that family income will increase.
Training and assistance on the use of village administration management system using OpenSID in Sukatani Village
Authors: Suharso Aries , Manda Gusganda Suria , Rozikin Chaerur , Mayasari Mayasari
Published: November 2022

Sukatani Village, Compreng Sub-District, Subang District in carrying out village administration services still uses Microsoft Word in making village correspondence then the letter number is recorded in the village ledger and the Sukatani village population data is still stored in excel form. The problem is that typos often occur, it takes a long time to search for correspondence files and cannot present population data accurately. This problem can be overcome by using a village administration management system that will be used in Sukatani village. The system was developed using the OpenSID framework which is licensed and free to use and developed for village purposes. In order for the village apparatus to easily use the village administration management system, training and assistance is needed. The training and mentoring is carried out by dividing into two groups and each group is accompanied by a trainer so that the training for village officials can run smoothly and well. The result of this service activity is that the village administration management application and village apparatus can use the application well so that the application can be used continuously to improve village administration services to Sukatani villagers.
Experimental and Numerical Study on the Composite Column Behavior: Loess Soil Reinforced by Concrete-Stone Column
Authors: Salam Mahmood A. , Wang Qiyao , Huang Jinbo
Published: November 2022

Stone columns are an effective approach to improving the bearing capacity of weak soils, which has led to increased interest in the improved soil method being further developed and expanded. In addition, enhancing the bearing capacity of stone columns has recently received great attention. This paper studies the effects of embedded concrete parts on the stone columns' bearing capacity and bulging failure. Moreover, arranging solutions to the problem of bulging failure and reduced bearing capacity of stone columns and understanding the stone columns' failure after reinforcement by comparing the results. Stone columns are either embedded in a solid concrete part or unreinforced were examined using large-scale laboratory experiments, and numerical simulation was performed using ABAQUS. The models test with a scale factor of 1:7 was employed. The results demonstrated that using a concrete part on the top of the stone column greatly increases its bearing capacity and the efficiency of the surrounding soil. Concrete-stone columns (CSCs) show stress concentration ratio (n) enhancement and significant resistance to bulging failure deformation. The concrete-stone column shows an enhancement related to increasing the concrete part length; also, the CSCs stiffness increases the surrounding loess soil capacity. The horizontal stresses of CSCs demonstrate the type of column failure behavior; the column may fail due to shear stress in a long concrete part case. Doi: 10.28991/CEJ-2022-08-10-01 Full Text: PDF
Ultimate Load of Different Types of Reinforced Self-Compacting Concrete Columns Attacked by Sulphate
Authors: Muhammed N. , Shihab L. , Sakin S.
Published: November 2022

In this study, the effects of the partial immersion of sulphate attack on the ultimate load capacity of reinforced self-compacting concrete (SCC) columns and the sulphate attack resistance improvement using silica fume, steel fibres, and the combination of silica fume and steel fibres were assessed. Twelve short circular self-compacting reinforced concrete columns (0.150 m in diameter and 0.7 m long) were cast and divided into groups according to (1) the three acid-attack groups. The first group was tested without an acid attack (control). The second group was tested after 1 month of exposure to 2% acid. The final group was tested after 1 month of exposure to 4% acid and was then (2) subdivided according to the type of casted concrete. The first group was cast with SCC. The second group was cast with SCC and silica fume (0.1% of the cement weight). The third group was cast with SCC and 1% volume fraction steel fibres. The fourth group was cast with SCC silica fume and 1% volume fraction steel fibre. All columns were tested by axial loading. The ultimate load was increased by 42% with silica fume, 190% with steel fibres, and 238% with silica fume and steel fibres. Exposure to 2% and 4% acid reduced the ultimate loads of the columns casted with SCC by 23% and 47%, the columns casted with SCC and silica fume by 34% and 37%, the columns casted with SCC and steel fibres by 69% and 78%, and the columns casted with SCC, silica fume, and steel fibres by 72% and 79%, respectively. Based on the results, using silica fumes improved sulphate resistance, and using steel fibres enhanced sulphate resistance at an acceptable ratio. Furthermore, the mix with silica fume and steel fibres improved sulphate resistance at a good ratio. We encountered several problems in this study. The partial immersion of sulphate affected the strain in both concrete and steel. Future studies using different immersion ratios are recommended. Doi: 10.28991/CEJ-2022-08-10-04 Full Text: PDF
Evaluation of Factors Influencing Maritime Dangerous Cargo Transport Accidents-Induced Crew Fatalities and Serious Injuries
Authors: Eski Özge , Tavacioglu Leyla
Published: November 2022

Maritime dangerous cargo transport accidents can lead to crew fatalities and serious injuries. This paper focuses on these accidents to evaluate the factors involved in these losses. To that end, the relevant reports of 2000–2020 maritime dangerous cargo transport accidents recorded in the Marine Casualties and Incidents (MCI) module of the International Maritime Organization’s Integrated Shipping Information System (IMO-GISIS) database were analyzed. Six initial events in six basic ship operations were determined. This paper combined the entropy weight and Grey relational analysis methods to analyze the involved factors and evaluate the extent of influences of each initial event in various ship operations. The entropy weight (EW) method was applied to determine the weights of basic ship operations. The grey relational analysis method was applied to calculate the correlational degrees of the initial events. Most crew fatalities and severe injuries occur during bunkering, berthing, and mooring operations. Occupational accidents and fires/explosions are the most influential factors; more specifically, occupational accidents during sailing, cargo loading/unloading, anchoring, berthing, and mooring operations and fires/explosions during bunkering operations are most likely to lead to crew fatalities and serious injuries. The results of this paper can aid stakeholders in improving the required strategies to ensure the safety of seafarers during maritime dangerous cargo transport. Doi: 10.28991/CEJ-2022-08-10-05 Full Text: PDF
The Implementation of Smart Mobility for Smart Cities: A Case Study in Qatar
Authors: Tahmasseby Shahram
Published: November 2022

This paper contributes to building a systematic view of the mobility characteristics of smart cities by reviewing the lessons learned from the best practices implemented around the world. The main features of smart cities, such as smart homes, smart infrastructure, smart operations, smart services, smart utilities, smart energy, smart governance, smart lifestyle, smart business, and smart mobility in North America, Asia, and Europe are briefly reviewed. The study predominantly focuses on smart mobility features and their implications in newly built smart cities. As a case study, the modern city of Lusail located in the north of Doha, Qatar is considered. The provision of car park management and guidance, real-time traffic signal control, traffic information system, active-modes arrangement in promenade and busy urban avenues, LRT, buses, taxis, and water taxis information system, and multimodal journey planning facilities in the Lusail smart city is discussed in this study. Consequently, the implications of smart mobility features on adopting Intelligent Transportation Systems (ITS) will be studied. The study demonstrates that the implementation of Information and Communication Technologies (ICT) when supported by Intelligent Transportation Systems (ITS), could result in making the most efficient use of existing transportation infrastructure and consequently improve the safety and security, mobility, and the environment in urban areas. The findings of this study could be considered an initial step in the implementation of Mobility-as-a-Service (MaaS) in cities with advanced public transportation such as Doha, the capital of Qatar. Doi: 10.28991/CEJ-2022-08-10-09 Full Text: PDF
Workshop on biotesting of soil ecotoxicity
Authors: Terekhova Vera , Rakhleeva Anna , Fedoseeva Elena , Kiryushina Anastasia
Published: November 2022

The textbook is devoted to the theoretical and practical aspects of biotesting, gives an idea of the place of laboratory analysis in the biodiagnostics of the ecological quality of soils, introduces the principles of organizing test systems and test organisms that are in demand in the practical environmental monitoring of soil safety. The manual contains methods, practical tasks, tables, calculation formulas and reference applications necessary for performing analyzes. The textbook was written in accordance with the programs of a number of disciplines for students of the Faculty of Soil Science of Moscow State University, studying in the areas of study “Soil Science”, “Ecology and Nature Management” of the bachelor's and master's programs, including the master's program of the interfaculty scientific and educational school, as well as for students of advanced training programs for ecologists. It may be useful for graduate students and teachers of environmental specialties from other universities.
OPSINS OF THE CTENOPHORE MNEMIOPSIS LEIDYI AND A NETWORK OF PROTEIN-PROTEIN INTERACTIONS
Authors: Sergeeva E. , Fadeeva M. , Khavronyuk I. , Mamontov A. , Ershov A. , Kuznetsov A.
Published: November 2022

Ctenophora are ancient and separate branch of evolutionary tree of the organic world development. They inhabit mostly epipelagic seas and demonstrate amazing mechanisms of adaptation to the environment. It is now possible with the potential technique of DNA sequencing to study biological objects not only experimentally but also theoretically. We studied opsins of the ctenophore Mnemiopsis leidyi A. Agassiz 1865 using bioinformatics methods. Additional annotation of opsins 1, 2, and 3, AFK83788.1, AFK83789.1, and AFK83790.1, respectively, was performed. Their 3D models were constructed and the localization of retinal within the protein molecules was determined. The protein environment of opsins was studied, and the first- and second-level protein neighbors were characterized. The structure of the protein-protein interaction network was shown to resemble a perceptron and, therefore, to perform the function of recognizing the patterns of the signals coming from outside. The multitasking of signaling pathways from endocytosis to Wnt signaling has been revealed, indicating the involvement of Ctenophora opsins in a wide range of genetic and physiological processes.
INTERACTION OF METHYLENE BLUE WITH SINGLE-STRANDED POLYNUCLEOTIDES POLY(rA) AND POLY(rU) AND WITH DOUBLE_STRANDED POLYNUCLEOTIDE POLY(rA)-POLY(rU)
Authors: Antonyan A. , Movsesyan Z. , Parsadanyan M. , Vardevanyan P.
Published: November 2022

Interaction of dye-intercalator methylene blue (MB) with single-stranded (ss-) polynucleotides poly(rA), poly(rU) and double-stranded poly(rA)-poly(rU) has been studied by the method of absorption spectroscopy at various concentration ratios ligand/phosphate (concentration of ss-polynucleotides by phosphate residue). It was revealed that in the absorption layer of methylene blue, in the wavelength change interval 500≤λ≤750 nm, the absorption spectra of the complexes MB-ss-poly(rA) decrease more sharply, as compared to MB spectrum, along with polynucleotide concentration enhancement in the solution. It was also revealed that the absorption spectra of the complexes MB-ss-poly(rU) decrease moderately at the increase of this polynucleotide concentration in the solution. In the spectra of the complexes MB-ss-poly(rU) a pseudo-isosbestic point is formed, while in the spectra of the complexes MB-ss-poly(rA) there is no such point. The pseudo-isosbestic point is formed also in the spectra of the complexes MB-poly(rA)-poly(rU). It was also revealed that the absorption spectra of the complexes of MB with ss-poly(rA) and poly(rA)-poly(rU) are shifted to the longer wavelengths by ~5-7 nm, while the shift in the absorption spectra of the complexes MB-ss-poly(rU) composes almost ~2 nm. The absorption spectra changes of the complexes of MB with the mentioned polynucleotides indicate that MB shows higher specificity to poly(rA), as compared to poly(rU) and poly(rA)-poly(rU). The obtained data also indicate that MB binds to poly(rA) and poly(rA)-poly(rU) by intercalation and electrostatic modes, and with ss-poly(rU) – mainly by electrostatic mechanism.
THE EFFECTS OF COBRA CARDIOTOXINS ON THE PAPILLARY MUSCLE AND LANGENDORF PERFUSED RAT HEART ARE NOT ASSOCIATED WITH ADRENALINE RELEASE
Authors: Averin A. , Tyurin F. , Samodurova K. , Starkov V. , Andreeva T. , Utkin Yu.
Published: November 2022

In a study of the effects of cobra cardiotoxins on myocardial tissue, both right ventricular (papillary muscle) and left ventricular contractility (isovolumic recording of left ventricular pulse pressure during Langendorff perfusion of the heart) were assessed. In papillary muscle, both toxins, at a concentration of 5 μg/mL, caused short-term increases in contractility to 200±25% and 171±15% for CTX-1 and CTX-2, respectively, at the point of maximum effect. At the same time, for CTX-1 and CTX-2, the time to peak tension (TPT) increased from 104±2 to 111±2 and from 96±2 to 104±5 ms, the relaxation time to 50%(TR50%) from 64±4 to 70±6 and from 64±6 to 69±7 ms, and the relaxation time to 95%(TR95%) from 163±10 to 190±22 and from 148±16 to 155±20 ms, respectively. This significantly differs from the positive inotropic effect of the β-adrenomimetic isoproterenol (170±31%), which causes acceleration of TPT from 106±5 to 89±4 ms, TR50% from 58±6 to 43±4 ms, and TR95% from 145±15 to 90±14 ms. When the whole heart was exposed to cardiotoxins, an increase in contractility was also observed, followed by its suppression and contracture, in contrast to isoproterenol, which caused a steady increase in contractility coupled with an increase in heart rate. Pretreatment of papillary muscles with the β-blocker propranolol

(10 μM) did not prevent the development of cardiotoxin effects, but completely blocked the effects of isoproterenol. Our data indicate that the temporary increase in contractility under the action of cardiotoxins is not associated with the release of endogenous adrenaline, but rather is caused by changes in calcium homeostasis in cardiomyocytes.
DEVELOPMENT OF TECHNOLOGY FOR STUDYING THE PULMONARY SURFACTANT SYSTEM USING ELECTRIC GENERATION OF CAPILLARY WAVES (EXPRESS METHOD)
Authors: Kazarinov K. , Malinin V. , Shchelkonogov V. , Chekanov A.
Published: November 2022

Based on the use of a new design of a capillary wave generator, a method is proposed for studying the human surfactant system for diagnosing patients suffering from pulmonary diseases, including after infection with COVID-19. The study of the surfactant system of the lungs (SSL) in a healthy organism and in pathology is one of the important tasks of modern pulmonology. The proposed method for monitoring human exhaled air condensate consists in applying a condensate sample to the surface of an aqueous solution, on which capillary waves are created due to the phenomenon of electrostriction, the change in the amplitude and phase of which makes it possible to determine the surface tension of the liquid and the parameters of the surfactant layer. To this end, we have developed a design and received a patent for the invention of a liquid parameter meter containing a liquid cuvette, a generator associated with a system for creating capillary waves on the liquid surface and a system for recording the characteristics of liquid vibrations. Improving the technology of the CCL control process is aimed at solving the problems of reducing the time of measuring the CCL and reducing the cost of the method.
METHODOLOGY FOR STUDYING THE VIBRATIONAL ACTIVITY OF THE VOCAL FOLDS
Authors: Belovolova L. , Belovolov M. , Paramonov V. , Belovolov M. , Svistushkin M. , Lunicheva A.
Published: November 2022

In order to develop equipment for diagnosing the state of the human vocal folds (VF) and monitoring their activity during treatment, a complex of studies of animal VF samples (rabbits) was performed. A highly sensitive non-contact laser-optical equipment and a technique for recording VF vibrations in an air flow with controlled pressure have been developed. For a group of rabbits of the same age, data are given on the registration of vibrational frequencies in healthy VFs and received as a result of therapeutic effects ("treated" VFs). It was found that when air is passed through the trachea under a slight pressure of 10-20 mm Hg. three peaks of the characteristic frequencies of natural mechanical vibrations of the VF appear in the range of ~ 200 - 1000 Hz. As a rule, this is the fundamental frequency f1 and its two harmonics f2 = 2 f1 and f3 = 3 f1. Best of all, these oscillations are excited at the end of the outflow of air under a pressure of 1 - 5 mm Hg. A difference was found in the excited vibrations at low frequencies in healthy VF and VF with defects in the form of a scar on one ligament. The frequencies of the lowest natural vibrations in a defective VF are somewhat higher compared to the lowest frequency in a healthy VF, which is explained by an increase in its rigidity during the formation of scar tissue. The technique is characterized by ease of registration, sensitivity and informativeness during treatment by methods of regenerative medicine. Diagnosis of the state of the VF during treatment in comparison with the data for a healthy VF seems to be informative and useful for restoring the vibrational properties of the vocal cords during the treatment.