bluuebunny/crossref_metadata_2025 huggingface dataset:
JEALOUSY DITINJAU HARGA DIRI PADA PARA ISTRI YANG TINGGAL DI PERUMAHAN KOMPLEK CEMARA ASRI MEDAN
Authors: Haposan Lumbantoruan  , Jesiska Lisa
Published: October 2022

This study aims to find out the relationship between self esteem and jealousy. The hypothesis of this study states that there is a negative correlation between self esteem and jealousy, assuming that the higher the self esteem, the lower the jealousy will be and conversely the lower the self esteem, the higher the jealousy will be. The subjects of this study were 110 wives at Cemara Asri Complex Medan. Data were obtained from a scale to measure self esteem and jealousy The calculation was performed by testing requirements analysis (assumption test), which consists of normality test for distribution and linearity test for relationships. Product Moment correlation with SPSS 17 for windows was used in the data analysis. The results in the data analysis showed that the correlation coefficient was -0.509 with p 0.000 (p < 0.05). It shows that there is a negative correlation between self esteem and jealousy. These results indicate that the contribution of the given variable, self esteem to jealousy is 25.9 percent, while the remaining 74.1 percent is influenced by the other factors that are not examined in this study. Based on these results, it is concluded that the hypothesis is acceptable and there is a negative correlation between self esteem and jealousy

Penelitian ini bertujuan untuk mengetahui hubungan antara harga diri dengan jealousy. Hipotesis yang diajukan dalam penelitian ini adalah ada hubungan negatif antara harga diri dengan jealousy, dengan asumsi semakin tinggi harga diri, maka semakin rendah jealousy dan sebaliknya semakin rendah harga diri, maka semakin tinggi jealousy. Subjek penelitian yang digunakan dalam penelitian ini adalah para istri yang tinggal di Perumahan Komplek Cemara Asri Medan sebanyak 110 orang. Data diperoleh dari skala untuk mengukur harga diri dan jealousy. Perhitungan dilakukan dengan melakukan uji prasyarat analisis (uji asumsi) yang terdiri dari uji normalitas dan uji linearitas. Analisis data yang digunakan adalah menggunakan korelasi Product Moment melalui bantuan SPSS 17 for Windows. Hasil analisis data menunjukkan koefisien korelasi sebesar -0,509 dan nilai signifikansi sebesar 0,000 (p < 0,05). Ini menunjukkan ada hubungan negatif antara harga diri dengan jealousy. Hasil penelitian ini menunjukkan bahwa sumbangan yang diberikan variabel harga diri terhadap jealousy sebesar 25,9 persen, selebihnya 77,1 persen dipengaruhi oleh faktor lain yang tidak diteliti. Berdasarkan hasil penelitian ini dapat ditarik kesimpulan bahwa hipotesis penelitian dapat diterima, yaitu ada hubungan negatif antara harga diri dengan jealousy.
KETERLAMBATAN BICARA (SPEECH DELAY) PADA ANAK USIA 4 TAHUN (STUDI KASUS DI LEMBAGA LAYANAN ANAK BERKEBUTUHAN KHUSUS KARYA ILAHI)
Authors: Epifania Margareta Ladapase
Published: October 2022

keterlambatan bicara (speech delay) pada anak yaitu apabila tingkat perkembangan bicara anak berada di bawah tingkat kualitas bicara anak yang umurnya sama. Penelitian ini bertujuan untuk mengetahui gambaran umum keterlambatan bicara dan faktor-faktor yang mempengaruhi keterlambatan bicara (speech delay) pada seorang anak laki-laki berusia 4 tahun. Penelitian ini menggunakan metode deskriptif kualitatif dengan pendekatan single subject research. Berdasarkan hasil diperoleh gambaran umum keterlambatan bicara (speech delay) anak adalah 1) anak memiliki perbendaharaan kata yang sangat sedikit, 2) kemampuan bicara yang rendah dengan artikulasi yang kurang jelas dan pembentukan bunyi bahasa yang kurang tepat, 3) kurang respon terhadap stimulus yang diberikan, 4) memilih menggunakan gerak tubuh untuk komunikasi dari pada menggunakan kata-kata. Sedangkan faktor-faktor yang mempengaruhi keterlambatan bicara anak adalah 1) anak tidak mendapatkan model yang baik, 2) anak tidak mendapat kesempatan untuk bicara, 3) motivasi yang rendah, 4) kebiasaan menonton televisi atau you tube di handphone Kata kunci: keterlambatan bicara

speech delay in children, namely if the level of speech development of children is below the level of speech quality of children of the same age. This study aims to determine the general description of speech delay and the factors that affect speech delay in a 4 years old boy. This study uses a qualitative descriptive method with a single subject research approach. Based on the results, the general description of speech delay in children is 1) the child has very little vocabulary, 2) low speech ability with unclear articulation and inappropriate language sound formation, 3) less response to the given stimulus. 4) choose to use gestures for communication rather than using words. While the factors that affect the speech delay of children are 1) the child does not get a good model, 2) the child does not get the opportunity to talk, 3) low motivation, 4) the habit of watching television or you tube on the cellphone Keywords: Speech delay
HUBUNGAN EFIKASI DIRI DENGAN RESILIENSI GURU SELAMA PANDEMI COVID-19
Authors: Paulus Lunga  , Sitti Anggraini  , Epifania M. Ladapase
Published: October 2022

Penelitian ini bertujuan untuk mengetahui hubungan antara efikasi diri dengan resiliensi guru selama masa pandemi Covid-19 pada guru sekolah menengah atas di Maumere. Penelitian ini termasuk penelitian kuantitatif dengan teknik pengambilan sampel menggunakan purposive sampling. Skala yang digunakan dalam penelitian ini skala efikasi diri dan skala resiliensi. Skala efikasi diri memiliki rentang korelasi validitas sebesar 0,301 sampai 0,710 dan total item valid sebanyak 20 item. Skala resiliensi memiliki rentang korelasi validitas sebesar 0,335 sampai 0,659 dan total item valid sebanyak 15 item. Hasil penelitian ini menunjukkan bahwa terdapat hubungan yang signifikan antara efikasi diri dengan resiliensi pada Guru selama pandemi covid-19 dengan koefisien korelasi sebesar 0.480 pada taraf signifikan 0.000 (p<0.05). Korelasi tersebut menunjukan adanya hubungan positif antara efikasi diri dan resiliensi pada guru.
Determinan Pemberian ASI Eksklusif di Masa New Normal oleh Ibu Menyusui yang Bekerja dengan Algoritma ID3
Authors: Anisa Fadhiyah Noor , Yunita Laurensia , Hidayat Ahmad
Published: October 2022

Breastmilk is exclusively an important activity in preparing a quality generation in the future.  Nutrients in the form of breast milk that are sufficiently consumed by babies can affect the growth and development of babies. Sumber energy in the form of protein, vitamins and minerals in breast milk is the main source for babies. SDKI in 2017 showed that the coverage of ASIX administration  for infants aged < 6 months in Indonesia has generally increased in recent years, reaching 52%. this percentage decreases along with the increase in children's age, for children aged < 1  month the percentage is 67%, this figure is reduced to 55% in children aged 2-3 months and decreases to 38% in children aged 4-5 months.  One of the obstacles to the administration of ASIX is working mothers.

The purpose of the study was to determine the Determinants ofBreastfeeding X in the New Normal Period by Breastfeeding Mothers Who Work with the ID3 Algorithm with Methods and Types of research conducted in this study using a quantitative approach.  Quantitative data analysis was carried out in this study using the ID3 Algorithm.

The results of the study with the ID3 algorithm obtained determinants of breastfeedingX from 6 variables: age, education, knowledge, facilities, income and family support, it was found that the knowledge variable is the variable that most affects the achievement of ASIX in working mothers. As for the variables of income, support facilities and education become accompanying variables.

The conclusion of this study is that if knowledge is good, the variable that is the main inclusion is income. The income of families with the middle category will be seen facilities at their place of work, if there are facilities in their place of work, the possibility of breastfeedingX is achieved, but if there are no facilities in their place of work, family support and the last education of the mother will be seen.
Recensiones y reseñas de libros recibidos
Authors: CyTET Revista
Published: October 2022

Recensiones y reseñas de libros recibidos
La ciudad compartida: el patrimonio cultural como herramienta para la re-creación del relato urbano
Authors: Rivero-Moreno Luis D.
Published: October 2022

En el mundo digital y tecnológico actual, la regeneración urbana podría haber dejado de ser un proceso físico y arquitectónico para pasar a ser, simplemente, una superficial puesta en escena de nuevas y más atractivas imágenes de la ciudad que hagan de la misma un destino deseado. Sin embargo, la representación requiere de un relato que la contextualice y dé sentido. El ámbito cultural y patrimonial ofrece para ello sus espacios como plataformas de intercambio y comunicación. Este artículo aborda las opciones que disponen los habitantes de la ciudad como responsables de su narración y de su representación. Se multiplican así las posibilidades de una planificación urbana democrática, abierta y participativa. Sólo de este modo la planificación urbana será más creativa y sostenible, y su relato más acorde a la compleja realidad urbana.
Plan Bici CDMX: una estrategia de movilidad en bicicleta para Ciudad de México
Authors: Suárez-Lastra Manuel , Galindo-Pérez Carlos , Reyes-García Victor
Published: October 2022

En el año 2010 en Ciudad de México (CDMX) se marcó el inicio formal de la política de movilidad ciclista en la ciudad. En este documento se presenta la metodología aplicada para diseñar la estrategia de movilidad en bicicleta contenida en el Plan Bici CDMX 2018. Se utilizan los datos de la Encuesta Origen-Destino en Hogares de la Zona Metropolitana del Valle de México 2017 (EOD17). A partir de un modelo de regresión logística, se calculó la probabilidad de uso de la bicicleta para realizar un viaje en este modo de transporte al interior de CDMX.
An Overview on Surface Modified Dendrimers: Current Direction and Future Perspectives
Authors: Saruchi  , Singh Narinder , Kumar Vaneet
Published: October 2022

Dendrimers are made up of synthetic and nano-sized molecules which represent a tree-like three-dimensional (3D) structure that delivers surface versatility and functionality. This review revealed that the surface modified agents like acetylation, polyphenols, and conjugation might be a promising nano-platform for more targeted site diagnosis, unique structural activity and higher bioavailability compatibility. Polyamidoamine (PAMAM) dendrimers are multipurpose nanocarriers, which can easily load with drugs and be amended by target-specific ligands, which are very specific to the receptor. PAMAM dendrimers are best suited for the release of hydrophobic drugs, as they can be encapsulated inside the internal void of PAMAM dendrimers. Moreover, current trends and future strategies, surface modification of dimensional globular nano-polymeric that are best for drug delivery are described with their potential applications in the biomedical sector. The aim of the present review article is to study the different methods of synthesis of dendrimers, how they can be modified with different methods as per the requirement, types of dendrimers and their use in different sectors.
Die Wirkung Wallersteins auf die fachlichen Entwicklungen in der Human- und Wirtschaftsgeographie
Authors: Oßenbrügge Jürgen , Parnreiter Christof
Published: October 2022

Für die Phase, in der die ersten wegweisenden Arbeiten von Immanuel Wallerstein erschienen sind, weist die Disziplingeschichte der Geographie, besonders die der sozialwissenschaftlich ausgerichteten Anthropogeographie, einen tiefgreifenden Umbruch auf. In internationaler Perspektive
war es besonders die englischsprachige ,,human geography“, die zu einem bis heute anhaltenden Stilbildner des Faches wurde und gleichermaßen neue philosophische und theoretische Denkrichtungen wie auch gesellschaftliche Problemlagen und Herausforderungen konzeptionell einfing und
damit eine außerordentliche Dynamik eingeleitet hat. Die deutschsprachige Entwicklung des Faches folgte diesem Innovationsschub zeitlich verzögert und eher rezeptiv.1
CRACKS IN REINFORCED CONCRETE BEAM
Authors: Layang Samuel
Published: October 2022

Cracks in concrete cannot be prevented but the size of the cracks can be controlled. Cracks that occur in concrete are strongly influenced by the nature and characteristics of the concrete constituent materials, especially cement and water. Cracks can occur in the fresh and hard concrete phases. Cracks that occur in concrete can be grouped into two, non-structural cracks and structural cracks. There are several types of non-structural cracks such as crazing, map cracking, plastic cracking due to shrinkage, plastic cracking due to settlement, cracking due to drying shrinkage, cracking due to temperature changes, cracking due to chemical reactions. Structural cracks can be caused by the effects of vibration, earthquake and loads that work beyond capacity. Cracks in concrete beams can be in the form of flexural cracks, web shear cracks, flexure-shear cracks, torsion cracks, bond cracks. The failure that occurs in the beam has a close relationship with the pattern of cracks formed. Cracks that occur in the beam must be repaired so that the damage does not get worse and efforts to strengthen the structure to ensure it remains safe
PENGEMBANGAN MODUL ELEKTRONIK RANCANGAN PENELITIAN PADA S1 PENDIDIKAN TEKNIK BANGUNAN FT UNJ
Authors: R. Eka Murtinugraha  , Ridia Irin Imbatami  , Riyan Arthur  , Firros Hirzy  , Mafie Musqyla
Published: October 2022

The purpose of this research is to develop teaching material regarding research design in the Electronic Module-based Research Methodology course which consists of problems, theoretical basis, hypothesis submission, research methods and to find out the value of the effectiveness of electronic module teaching materials through limited distribution. This study uses a research and development research method (R&D) with the Thiagarajan 4D model. The results of the validation by material experts were 0,94 in the very high category, while the results of the validation by the media experts were 0,89 in the very high category. The limited trial results showed an increase in the average value of the pre test by 62,45 and post test by 78,53. Therefore, it can be concluded that the electronic module teaching materials for this electronic module can increase understanding in terms of material and are declared fit for use in learning.
ANALYSIS OF THE NEED FOR TEACHING MATERIALS FOR SOIL MEASUREMENT II
Authors: Riyan Arthur  , Prihantono  , Salma Maharani  , Dendy Wahyu Kuntoro
Published: October 2022

This study aims to obtain information about problems in the learning process of the Land Surveying course in S1 majoring in Building Engineering Education, State University of Jakarta.The study was conducted in April to May 2019 with a data collection method in the form of a questionnaire / questionnaire with a simple random sampling technique consisting of 44 respondent students majoring in S1 Engineering Education Building in Jakarta State University. The results of the needs analysis show that; 86% of respondents have difficulty in learning materials contained in other sources due to incomplete material, explanatory techniques that are difficult to understand and others; 61% of respondents answered that they were not able to apply the material during the practicum after studying the Land Surveying II course from various sources they studied. In general, the results of this needs analysis can be used as a guideline in the design of teaching materials for Land Surveying II.
PARENTS' ASPIRATIONS AND PARTICIPATION IN CHILDREN'S EDUCATION
Authors: Susan Daniel
Published: October 2022

Human formation starts from childhood in the womb, which is then followed by the development of thechild after birth and grows into adulthood. Therefore, the role of the family, especially parents (fatherand mother) has a very important meaning, especially in the education of children. In this case, parentalparticipation is very necessary in supporting progress and education, because education is a sharedresponsibility between family, community and government, street vendors are one of the most tangiblejobs in most cities or developing countries in general. Street vendors are described as independententrepreneurs and the majority of them are unpaid workers. Its success is highly dependent on theeffort and ability to attract buyers. His parents are busy as traders, so the time for family is decreasing,this is because in their daily life they sell in the market or go around offering their wares. This research isone way to find out firsthand how the aspirations and participation of parents who have a profession asstreet vendors in the village area of Mantaren I Pulang Pisau towards children's education, as well asknowing firsthand how their need for education is to achieve equal distribution of education throughoutIndonesia. . This study uses a qualitative approach with descriptive analysis. The research subjects in thiscase were street vendors, both male and female along Jalan Desa Mantaren I Pulang Pisau, totaling 10people. Researchers took street vendors who already had 1 year of trading experience and who wereable to send their children to school. The instrument in this study consisted of the main instrument,namely the researcher himself and supporting instruments in the form of documentation, the datacollection procedure in this study was carried out using interview techniques so that it could be knowndirectly how the aspirations and participation of the subject towards children's education
IDENTIFICATION OF STUDENT ERRORS IN SOLVING THE PROBLEM ON THE MATERIAL OF COMPOSING AN EQUIVALENT Force IN THE TENTH GRADE OF CONSTRUCTION AND PROPERTY BUSINESS SMK NEGERI 1 PALANGKA RAYA
Authors: Hari Fansyah  , Pantur Pandiangan  , Samuel Layang
Published: October 2022

The material of composing an equivalent force became the focus of this study. Researcher want to see deeper and broader understanding of students related to this material. One teacher's information that most students make mistakes in solving the problem in the form of a description on the subject of engineering mechanics. The purpose of this study is to describe the mistakes made by students in completing the description of the material in composing an equivalent force in the thenth grade of Construction and Property SMK Negeri 1 Palangka Raya. This research uses descriptive method with qualitative approach. Population in this research is thenth grade of Business of Construction and Property of SMK Negeri 1 Palangka Raya is 23 people. Sampling by purposive sampling so chosen 4 subject of students with criterion of student can represent every aspect in making mistake that is mistake in comprehension problem, make mathematical model, calculation and draw conclusion, and able to communicate well. Data collection was done by test and interview method. From the research obtained the average result of the percentage of students who make mistakes in the aspects of understanding the problem of 5.44%, the error occurs because students do not write a complete what is known and asked in the matter. For the aspect of making a mathematical model of 21.74%, though students can write what is known and asked from the test questions but students are not able to change what is known into the mathematical model. For the calculation aspect of 35.87%, the error occurs due to wrong students in addition and calculation in the form of the root so that the results obtained are not appropriate. Students do not include a unit symbol into the calculation process. For Aspects to draw conclusions of 90.2%, errors occur because students do not write conclusions and students do not return answers into context questions, this can be seen from the answers of students who are less precise.
FEASIBILITY STUDY OF WOOD WORKSHOP SPACES CONTRUCTION AND PROPERTY BUSINESS EXPERTISE STUDY AT STATE VOCATIONAL SCHOOL 1 PALANGKA RAYA
Authors: Sabar Hasudungan Pandiangan  , Lola Cassiophea
Published: October 2022

The purpose of this study was to determine the feasibility of the wood workshop space, wood workshop lighting system, and woodworking furniture and equipment at SMK N 1 Palangka Raya based on the standards required by Permendiknas No. 40 of 2008 and SNI 03-6575-2001. This is done to provide convenience and feasibility for users. The results of this study are (1) the wood workspace area of SMK N 1 Palangka Raya does not meet the standard with an area of 198 m² which is smaller than the standard of 256 m² with an achievement percentage of 77.34%, the area of the equipment storage room and the wood workshop instructor room has meet the standard with an area of 72 m² larger than the standard of 48 m² with an achievement percentage of 150%, the overall area of the wood workshop does not meet the standard with an area of 270 m² smaller than the standard of 304 m² with an achievement percentage of 88.8%. (2) The level of lighting in the wood workshop room at SMK N 1 Palangka Raya has not met the standard, namely min 500 lux with a lighting level of 400 lux in the morning with an achievement percentage of 80%, during the day 411 lux with an achievement percentage of 82%, in the afternoon day of 408 lux with an achievement percentage of 81%. (3) Equipment and furniture for the wood workshop room at SMK N 1 Palangka Raya, single station equipment does not meet the standard with the number of equipment that meets the standard is 1 type of tool and 20 types of tools that meet the standard with a size of achievement of 4.76%, equipment double station there are 3 types of tools that meet the standards and 9 types of tools that do not meet the standards with a size of 16.66% standard achievement, workshop furniture there are 3 types of furniture that do not meet the standards and 4 types of furniture that meet the standards with a large standard achievement are 42.85%.
THE EFFECT OF VEHICLE VOLUME ON DAMAGE TO PINE ROAD IN PALANGKA RAYA CITY
Authors: Ary Andreo Siregar  , Lola Cassiophea
Published: October 2022

Along with the level of traffic density that crosses the Pinus road, there are several obstacles that cause damage, one of which is the damage that occurs in the road construction section, which is caused by the load of vehicles with excessive loads such as trucks, which further causes damage to the road, namely an increase in volume. heavy traffic every day. Asphalt pavement is generally used on roads that have a fairly dense traffic volume, with the increase in the number of vehicles resulting in damage in a relatively short time than planned. The purpose of this study is to determine the effect of the volume of vehicle types on road damage on asphalt pavement, it can be predicted earlier the value of road damage that will occur, the method used in this study is the method of analyzing vehicle volume on road damage with the regression method. Used to obtain the relationship function with the value of R² (coefficient of determination) which shows the magnitude of the effect of changes in the volume of vehicle types on changes in the value of road damage, this study was carried out on the Pinus road, Palangka Raya City. There is a relationship between the volume of vehicle types and the value of road damage, the results obtained are R² = 0.744 which shows that road damage is influenced by the volume of heavy vehicles, light vehicles and motorcycles with a percentage value of 74.4%. From the results of the equation between heavy vehicles (X1), light vehicles (X2), motorcycles (X3), and the value of road damage Y = 0.159 X1 + 0.034 X2 + 0.017 X3 + 14,189. From these equations it can be described as follows, the regression coefficient (X1) (a) = 0.159 means that a heavy vehicle of 100 vehicles/day will increase the level of road damage by 5.9, the regression coefficient (X2) (b) = 0.034 means a light vehicle of 100 vehicles/day will increase the level of road damage by 3.4, Regression coefficient (X3) (c) = 0.017 means that 100 motorbikes/day will increase the level of damage by 1.7, constant (c) = if there are no vehicles driving passing a road segment, the road will experience road damage of 14,189.
The Tribology of Composite Materials Used for Manufacturing Brake Shoes
Authors: Bucur Flavius , Socalici Ana , Berghian Adina Budiul , Baneasa Corneliu Birtok , Pascu Liviu
Published: October 2022

The paper presents the results obtained after the tribology of composite materials with organic components intended for the manufacturing of brake shoes for motor and towed rolling stock. We analyzed the tribological behaviour of the samples of experimental composite material in comparison to the phosphorous cast iron frequently used for manufacturing brake shoes.
Impact Behavior Analysis of 3-D Printed Honeycomb Structures
Authors: Stoica Constantin-Romica , Maier Raluca , Istrate Anca-Mihaela , Bucaciuc Sebastian-Gabriel , Despa Alexandra
Published: October 2022

The purpose of this paper is to evaluate the behaviour of 3D printed honeycomb structures under low velocity impact loading for their use in energy absorption applications. Additive manufacturing technologies are part of a growing field that represents high interest for industries such as aerospace, automotive and naval. This paper aims to determine the mechanical properties of a 3D printed polymer - Polylactic Acid (PLA) manufactured by FDM (Fused Deposition Modelling) technology. In this regard, first the material is characterized by low velocity impact dynamic experimental tests. A finite Element Analysis (FEA) is performed in LS-Dyna software in order to validate the results. The samples were manufactured by varying the infill percent to investigate the influence of different parameters on a batch of samples for every configuration. The 3D CAD modelling for impact tests samples were performed in Catia V5. Among wide range of cellular structures, honeycomb non-auxetic hexagonal cell pattern was selected in this study, assuring high strength/weight ratio. The amount of energy absorbed during the impact, the failure and degradation of the impacted specimens were monitored, following the analysis of experimental and numerical data. A fair agreement was obtained between experimental and numerical results, showing that honeycomb developed lightweight structures exhibits a proper energy absorption capacity, with a mechanism of release similar to metal or composite materials honeycombs.
Optimal Deformation of a Small Plastic Light-guide Using Machine Learning Algorithms
Authors: Yoo Min Ji , Han Seong Yeol
Published: October 2022

Lensknob is a component that transmits light to users. It is essential to minimize the deformation to transmit the light uniformly. As a method of finding injection molding parameters capable of minimizing the deformation, the amount of deformation of the Lensknob was predicted in advance by numerical analysis of the injection molding. However, because it takes a considerable amount of time to analyze, we used the Decision tree as a Machine Learning model. As the injection molding parameters, we set the melting temperature, cooling time, holding time, holding pressure, and ram speed. We set the injection molding parameters based on the range recommended by Moldflow. A full factor method of factor 5 level 3 was applied in the experiment. We predicted the parameters for minimizing the deformation through the Decision tree learned with 243 experimental data. We set the criteria to evaluate the performance of the Decision tree. The parameters predicted by the Decision tree improved the deformation by about 10.37%.
Metal-containing Ionic Liquids as Catalyst in PET Glycolysis
Authors: Tincu Robert , Slabu Andrei , Stavarache Cristina , Duldner Monica-Mirela , Barth Emeric , Teodorescu Florina
Published: October 2022

Metal-containing ionic liquids with general formula [Rmim]+MX3- (R=n-butyl or n-lauryl; M=Zn, Cd; X=Cl, Br) were synthesised and then characterized by nuclear magnetic resonance spectroscopy and infrared spectroscopy. The catalytic activity was tested in glycolysis of poly(ethylene terephthalate) (PET) with ethylene glycol (EG) with the main product being bis-2-hydroxyethyl terephthalate (BHET). The following parameters were varied: the catalyst type, the catalyst loading and the molar ratio between PET and EG. For every reaction conversion and selectivity were calculated. All these reactions arose with high selectivity in the desired product, the conversion of PET being quasi-total.
Quasi Static and Dynamic Mechanical Analysis of 3D Printed ABS and Carbon Fiber Reinforced ABS Composites
Authors: Karupaiah Vigneshwaran , Narayanan Venkateshwaran , Kakur Naresh
Published: October 2022

Fused Filament Fabrication (FFF) is the most popular and widely used additive manufacturing process for printing polymer and composite products. Various production factors influenced the strength and stiffness of the part manufactured by 3D printing. A comprehensive experimental analysis was conducted in this study to examine the effect of FFF process parameters (infill density, pattern, and layer thickness) on mechanical properties and failure mechanism. The tensile, flexural, and impact test specimens were printed using ABS and carbon fibre reinforced ABS filaments in accordance with ASTM standards. Furthermore, dynamic properties are studied using dynamic mechanical analysis to estimate the loss factor and glass transition temperature under the impact of temperature and frequency in addition to static properties. Further, the results showed the addition of carbon fiber in ABS increases the mechanical properties. The failure modes are studied using optical microscopy and Scanning Electron Microscopy images and it has been visualized that due to improper layer deposition, poor bonding between the previous layer and low infill density creates a void in the specimen which results in poor mechanical properties. The Dynamic Mechanical Analysis showed that at higher frequency the molecular movement decreases which in turn stabilizes the composite behavior and reduces the loss factor.
Analisa Perbandingan Waktu Enkripsi dan Dekripsi pada Algoritma ECC dan RSA
Authors: Adrian Yosef , Friscilla Chikana , Suardiman Nicholas , Wijaya Antoni , Sudimanto
Published: October 2022

Munculnya kejahatan cyber dan dapat terjadi pada siapa saja. Salah satu sistem keamanan data adalah kriptografi. Kriptografi adalah teknik merubah pesan yang dapat dimengerti menjadi pesan yang tidak dapat dimengerti, lalu diubah kembali menjadi pesan yang dapat dimengerti. Algoritma yang digunakan pada analisa ini menggunakan algoritma Elliptic Curve Cryptography (ECC) dan Rivest Shamir Adleman (RSA). Data yang digunakan pada analisa diambil dari jurnal International Journal of Applied Engineering Research dengan artikel RSA and ECC: A Comparative Analysis dan jurnal International Journal of Network Security dengan artikel Performance Analysis of RSA and Elliptic Curve Cryptography. Berdasarkan hasil analisa yang dilakukan, algoritma RSA memiliki waktu lebih cepat dalam melakukan enkripsi, sedangkan untuk algoritma ECC lebih cepat dalam melakukan dekripsi.  Perbedaan besar kunci yang dimiliki oleh masing-masing algoritma mempengaruhi waktu pada saat enkripsi ataupun melakukan dekripsi.
Mechanisms of PD-L1 Regulation in Tumor Immune Ecosystem
Authors: Bangash Fatima , Alia Sabiha , Gul Rabia
Published: October 2022

In this study, nano-cerium dioxide doped titanium-dioxide (CeO2-TiO2) Nanocomposites (NCs) was used for the photocatalytic degradation of pollutant parameters (color, polyphenols, polyaromatics) from a textile industry wastewater (TI ww) treatment plant located in Izmir, Turkey, at different operational conditions such as at increasing photocatalytic time (0, 10, 15, 20, 30, 60, 90 and 120 min), at different CeO2-TiO2 mass ratios (1%, 3%, 5%, 10%, 15%, 16%, 25%, 30%, 50%), at the different amounts of CeO2 (1, 3, 5, 8, 10, 15, 20 and 25 mg/L) under 130 W Ultraviolet (UV) and 35 W sun lights irradiations, respectively. Color, polyphenols (quercetin, fisetin, ellargic acid, carminic acid, luteolin, and curcumin) and polyaromatics [2,6-dimethylaniline (2,6-DMA), 2-aminoanisole (MOA), 2,4-toluenediamine (TDA), 2-naphthylamine (NA), 4,40-thiobisbenzenamine (TOA), 3,3-dichlorobenzidine (DCB) and 3,30-dimethoxybenzidine (DMOB)] removal efficiencies were observed between 78% and 99% during photocatalytic experiments, under 130 W UV light, at 15% CeO2-TiO2 NCs, at 21°C, after 30 min irradiation time. 15% CeO2-TiO2 NCs shows the highest photodegradation yield of color under both UV and visible-light irradiation, with maximum photo-degradation rates of 99% and 98.5%, respectively, after 30 min irradiation time. 94.44% maximum Microtox acute toxicity yield was found in CeO2-TiO2 NCs = 20 mg/L, at 5% CeO2 mass ratio, after 150 min photodegradation time at 60oC. 90% maximum Daphnia magna acute toxicity removal was obtained in CeO2-TiO2 NCs = 20 mg/L, at 5% CeO2 mass ratio, after 150 min photodegradation time at 60°C. The results show that the CeO2-TiO2 NCs has a high photocatalytic activity to remove the pollutants from TI ww.
Convergence in Diplomacy, Geopolitics and International Cooperation for Human Health and Environment
Authors: SR Chrysanthus Chukwuma
Published: October 2022

Global challenges require interactive global solutions. The disparities of inter alia scarce resources, military efforts, trade, and transboundary realizations of pollutants and irritants into the biosphere correlate to the multidimensional origin of health and environmental perturbations. Thus, taking into cognizance the inherent complexity of the world, it has become necessary to inculcate all pertinent concerns in decision making locally and globally. The levels of significant risk factors and social decision-making continue to undergo diverse alterations in several countries with their attendant geopolitics, gain-of-function research in biosecurity, environment, and health which necessitate international cooperation for peaceful coexistence within and across borders. A proper understanding of the cumulative impact of these changes in erstwhile, current and future trends is vital to harness and curb environmental health disasters in vulnerable ecosystem cadastres. Changes or trends in risk factor presentations or levels can be determined via disparate or collaborative spatiotemporal specific environmental cadastre and health surveys. International conflicts, hostilities, war, commodity crisis, inflation, trade imperfection, supply-chain disruption and labour shortages are being rebranded by multinationals and industrialized countries as health and environmentally virtuous policies.
Cancer Cell Destruction by Magneto-Mechanical Actuation of Nanowires Compared with Nano/Micromagnetic Particles
Authors: Chiriac Horia , Minuti Anca Emanuela , Lupu Nicoleta
Published: October 2022

High values of saturation magnetization at low magnetic field, along with magnetic anisotropy are the basic elements for increased effects of magnetomechanical actuation on cancer cells. In this paper we present a brief comparison report on the effects of Fe-Cr-Nb-B Magnetic Particles (MPs) and Fe-Co Nanowires (NWs) on human osteosarcoma cells. The purpose of the study is to evaluate the best sites to employ different types of nanomaterials for cancer cell destruction through magnetomechanical actuation.
Hyperhaemolysis Syndrome: A Review of Cases
Authors: Amirfarhan Zainudin Muhammad , Ahmad Asnawi Asral Wirda
Published: October 2022

Hyperhaemolysis is characterized by a haemolytic transfusion reaction that leads to life-threatening anaemia. It is usually suspected when there is a drop in haemoglobin level at least 24 hours after receiving allogeneic red cell transfusion. Decreasing haematocrit level, failure to respond to repeated RBC transfusions, markedly elevated LDH, absent haptoglobin, and gross haemoglobinuria are all suggestive of a haemolytic process. The aim of this review is to summarize and evaluate the cases from published literature to determine the features, management and outcome of reported cases of hyperhaemolysis syndrome.
Optimization of chitin demineralization from shrimp shells waste by Response Surface Methodology (RSM)
Authors: KHERBACHE Atiqa , YOUCEFI Fatma , Zerrouki Mostapha , Cherifi Achref
Published: October 2022

The solubilization of chitosan is a very important parameter for its use in various fields. The ash content of chitosan is an important parameter because it can affect its solubility and viscosity, as well as other important characteristics. The objective of the present study is to optimize the demineralization step in the production of chitosan, using a fractional factorial experimental design, where the concentration of Hcl, the reaction time, the temperature, the size particles and the solid-liquid ratio varied. The results showed that a quadratic model was suggested for the demineralization yield and the ash rate showing high accuracy with R2 = 0.99 and 0.97, respectively. The developed models indicated a significant effect of the five studied factors except the temperature (B), and the solid-liquid ratio (E) have insignificant effects on the reaction yield. Optimal selectivity was 39.77% and 0.14% for yield and ash content respectively, reached for HCl concentration of 2N, reaction time of 0.5 h, reaction temperature of 50° C, a solid/liquid ratio (1/10 g/l) and a particle size of 1 mm. In conclusion, the conditions optimized for the demineralization process could be used for the industrial scale production of chitin for agricultural, biomedical and biotechnological purposes.
Confronting trends of antibiotic resistance beyond the COVID-19 pandemic: insight from five worst hit countries
Authors: Asthana Shraddha , Manoharan Shankar  , PREETI
Published: October 2022

Antibiotic resistance is and has been a prominent obstacle prior to the occurrence of the COVID-19 pandemic. Due to the inability to efficiently treat the newly discovered coronavirus disease and the rise of bacterial co-infections in COVID-19 patients, the consumption of antibiotics increased drastically. Although the COVID-19 situation has somewhat contributed to reducing the spread of infections, the increment in antibiotic resistance is still a significant consequence. This emergence of increased rates is a global issue. The purpose of this review is to study the trend of antibiotic resistance before and since the COVID-19 pandemic in Brazil, China, India, Russia, and The United States of America. It was found that the most troublesome pathogens with the highest resistance rates in Brazil were Acinetobacter spp. The said bacterium species had developed peak resistance against meropenem, ciprofloxacin, gentamicin, and amikacin. Also, China had incredibly susceptible pathogens resistant towards macrolides, penicillins, and aminoglycosides; however, not much change was witnessed in the resistance rates of several pathogens. In India, increased usage of azithromycin led to the emergence of macrolide resistance among various bacterial pathogens, whereas the perpetual usage of doxycycline had not yet resulted in any tetracycline resistance. Although, the occurrence of fungal infections had enlarged, causing COVID-19-associated mucormycosis more frequent among the Indian population. While commonly present pathogens in Russia were extremely resistant to most antibiotic classes, Acinetobacter baumannii was the chief resistant bacterium reported. The United States of America was recognized with concentrated resistance against vancomycin, fluoroquinolones, and extended-spectrum β-lactamase producing antibiotics. This alarming rate of growing antibiotic resistance in world’s battle with COVID-19 is indeed a matter of concern.
Effect of salt stress on anatomical features of Lycopersicum esculentum M. and Capsicum annuum L.
Authors: Karima Bouassaba  , Benmakhlouf Zoubida
Published: October 2022

Salinity soil causes a constant threat to the survival of vegetable crops, particularly tomatoes and sweet pepper. Thus, choosing adaptive or saline-bearing items is the best solution. The aim of this study was to know the mechanism of adaptation and sensitivity to saline stress during the seedling phase. So, we designed two experiments for two types of sweet pepper vegetables Capsicum annuum L. variety Marconi and tomatoes Lycopersicum esculentum M. variety Berner rose treated with three different saline concentrations 2.5-5-10 g/l of NaCl in addition to the witness. After the seedlings reached the seven-sheets stage, an anatomical study was conducted on the stems of these two species to determine the effect of saline stress on the anatomical composition of the stems. After coloring the sections with double coloring, the samples were observed. The layers thickness was measured with a special camera type OPTICA Vision Lite 2.1 (2009) which was connected to a photomicroscope and a computer. Stems microscopic study demonstrated that salinity stress significantly decreased epidermal layer, hypodermal, pericycl, vascular cambium and pith area. In addition to an increase in the endodermal layers and the cells size in general, the lack or absence of space between cells, especially in high salt concentration (10 g/l) was also noticed. The present observations indicate tested tomato variety exhibited a resistant behavior compared to the sweet pepper plant, which exhibited a semi-sensitive behavior.
Defining invasive species and demonstrating impacts of biological invasions: a scientometric analysis of studies on invasive alien plants in Brazil over the past 20 years
Authors: Fachinello Maria Cecilia , Romero Jair Hernando Castro , Chiba de Castro Wagner Antonio
Published: October 2022

Despite biological invasions being widely recognised as an important driver of environmental change, lack of consensus regarding the definition of invasive alien species (IAS) and vagueness around the demonstration of their impacts limits knowledge and research in this field. In this study, a scientometric approach was used to analyse academic documents published between 2002 and 2021 in three databases with reference to invasive alien plants in Brazil. Despite the growing body of scientific literature in the area, only 10% of the publications provided some definition of invasive species. Of the 398 publications analysed, 23.6% found some type of damage caused by the invader and, of these, only 5% addressed economic or social damage. Only 17% of the publications proposed a method for controlling and/or mitigating biological invasions. The absence of clear terminology and the lack of focus on impacts limits understanding of IAS of plants in Brazil. Based on the present findings, future studies on IAS of plants should move towards a consensus on the definition of biological invasion, as well as understand the impact caused by these species. In addition, it is recommended that further scientometric studies should guide future efforts to support objective measures for management and decision-making.
Do non-native and dominant native species carry a similar risk of invasiveness? A case study for plants in Turkey
Authors: Yazlık Ayşe , Ambarlı Didem
Published: October 2022

Most risk analysis studies in invasion biology have focused on the invasiveness of non-native species, even though some native species also can pose a high risk to the environment and human well-being. This is especially true under current global change, which may cause dominant native species to expand their range of distribution and have substantial effects on the ecosystem. In this study, the risk of invasiveness of five non-native and five native plant species in Turkey was evaluated using a standard risk screening protocol. All ten species selected for screening are known to be invasive in several parts of the world, i.e. non-native Ailanthus altissima, Cuscuta campestris, Phytolacca americana, Robinia pseudoacacia and Sicyos angulatus, and native Cirsium arvense, Hedera helix, Onopordum acanthium, Phragmites australis and Sorghum halepense. The Australian Weed Risk Assessment decision-support tool adapted to Turkey’s geographical and climatic conditions was used for screening the study species based on their biological traits, ecology and management approaches. All species were classified as high-risk, with R. pseudoacacia among non-natives and P. australis among natives achieving the highest scores followed by S. halepense, C. campestris, C. arvense, O. acanthium, P. americana, S. angulatus, A. altissima and H. helix. Based on their risk scores, all non-native species were classified as invasive and all native species as ‘expanding’ for Turkey. An ordination based on the risk scores showed similarities between invasive and expanding species. The outcomes of this study indicate that species can have several risk-related traits resulting in high risk scores irrespective of their origin. Such species can modify their environment and interact with other species with severe consequences for biodiversity. It is argued that dominant species with highly negative environmental and socioeconomic impacts in their habitats should be included in priority lists for management measures irrespective of their origin (i.e. native or non-native). More studies are needed to evaluate the magnitude and prevalence of the present findings for other regions worldwide.
GPS tracking data of Eurasian oystercatchers (Haematopus ostralegus) from the Netherlands and Belgium
Authors: van der Kolk Henk-Jan , Desmet Peter , Oosterbeek Kees , Allen Andrew M. , Baptist Martin J. , Bom Roeland A. , Davidson Sarah C. , de Jong Jan , de Kroon Hans , Dijkstra Bert , Dillerop Rinus , Dokter Adriaan M. , Frauendorf Magali , Milotić Tanja , Rakhimberdiev Eldar , Shamoun-Baranes Judy , Spanoghe Geert , van de Pol Martijn , Van Ryckegem Gunther , Vanoverbeke Joost , Jongejans Eelke , Ens Bruno J.
Published: October 2022

We describe six datasets that contain GPS and accelerometer data of 202 Eurasian oystercatchers (Haematopus ostralegus) spanning the period 2008–2021. Birds were equipped with GPS trackers in breeding and wintering areas in the Netherlands and Belgium. We used GPS trackers from the University of Amsterdam Bird Tracking System (UvA-BiTS) for several study purposes, including the study of space use during the breeding season, habitat use and foraging behaviour in the winter season, and impacts of human disturbance. To enable broader usage, all data have now been made open access. Combined, the datasets contain 6.0 million GPS positions, 164 million acceleration measurements and 7.0 million classified behaviour events (i.e., flying, walking, foraging, preening, and inactive). The datasets are deposited on the research repository Zenodo, but are also accessible on Movebank and as down-sampled occurrence datasets on the Global Biodiversity Information Facility (GBIF) and Ocean Biodiversity Information System (OBIS).
Laissé seul quand on a le plus besoin des autres : dans le monde intérieur des défenses maniaques
Authors: Brevière Rachel
Published: October 2022

L’enfant, mystifié par le banal, se déplace sans effort vers l’étrange, jusqu’à ce que la nudité l’effraie, le déconcerte, et qu’il cherche un peu de protection, d’ordre. Il entrevoit, il glane ; il assemble une folle courtepointe de vérités – des vérités sauvages et nébuleuses, qui ne s’appuient pas du tout sur la vérité. L’intensité cruelle de ce processus peut produire une chose de toute beauté, mais souvent, il ne s’agit que d’une déchirure dans le chatoiement à partir de laquelle se débattre et se trémousser. Patti Smith, 2011, p. 13