bluuebunny/crossref_metadata_2025 huggingface dataset:
Astronomy with Web 2.0 Tools: Sun, Earth and Moon Unit
Authors: Efe Hacer , Gül Rabia , Topsakal Ünsal Umdu
Published: September 2023

The aim of this research is to examine the effects of web 2.0 tools used in online astronomy education on the conceptual achievement of 5th grade secondary school students. For this purpose, the Sun, Earth and Moon unit was processed online using web 2.0 tools. The study was implemented in a public secondary school over a period of 6 weeks. Mixed research method, which combines qualitative and quantitative research methods, was used in the study. An easily accessible sample model was used to determine the study group. The sample of the study consists of 12 students (7 girls, 5 boys) in the 10-11 age group. The “Sun, Earth and Moon Achievement Test” developed by Sontay & Karamustafaoğlu (2020) was used as a quantitative data collection tool in the study. Qualitative data collection tool “Semi-Structured Telephone Interview on the Concepts of the Sun, Earth and Moon” was used. SPSS program was used in the analysis of quantitative data. Content analysis method was used in the analysis of qualitative data. As a result of the study, it was seen that online education supported by web 2.0 tools within the scope of the Sun, Earth and Moon unit had a positive effect on students’ conceptual success.
Methods of Coating with Physical and Mental Problems Encountered in Adolescence
Authors: Erkan Mert , Gümüşdağ Hayrettin
Published: September 2023

There is an opinion about puberty that has some negative aspects. According to this view, he mentions that adolescence includes intense stress, pessimistic thoughts and inner turmoil. The aim of this study is to examine the methods of coping with physical and mental problems encountered in adolescence. It was applied to 8 high school students between the ages of 12-19 who are studying in Yozgat. Research data were obtained by semi-structured interview, one of the qualitative data collection tools. The data obtained as a result of the interviews with the participants were analyzed with descriptive analysis. At the end of the analysis of the data, themes were created in consideration of the literature. These themes are (1) stress, (2) mental problems, (3) physical problems, (4) coping with stress, and (5) environment. In this context, it is seen that family, friends and teachers play an important role in the psychological, physical and behavioral problems of adolescents and in the solution of these problems. The application of the research to a single high school type and the fact that the number of male students is more than the number of female students are among the limitations of the research. Based on the data obtained, trainings and seminars can be given by experts to families about the physical development and psychological problems of adolescence.
Development of an Attitude Scale for the use of Curent Events in Social Studies
Authors: Tabaru Örnek Gizem , Sönmez Yasemin , Adnan Adnan
Published: September 2023

The aim of this study is to develop a measurement tool that can determine the attitudes of social studies teachers and classroom teachers towards the use of current events in the social studies course. The scale consists of 23 five-point Likert-type items. The scale form consisting of 40 items prepared by the researchers was administered to a total of 394 teachers, including 303 classroom teachers and 91 social studies teachers working in different provinces of Turkey. As a result of the EFA, it was determined that the scale consists of 23 items and 2 sub-dimensions. The first sub-factor consisting of 14 items explains 40.44% of the variance of the related attitude variable, while the second sub-factor consisting of 9 items explains 12.99% of the variance of the related attitude variable. This two-factor structure explains 53.43% of the total variance. According to CFA analysis, values of χ2 / df = 2.73 (p = .000); RMSEA = 0.098; NFI = 0.90; CFI = 0.94; GFI = 0.77; NNFI = 0.97; and IFI = 0.94 were found. These findings reveal that the scale is a valid and reliable measurement tool to measure attitudes towards the use of current events in the social studies course. The original form of the scale is in Turkish.
A Study into the Carcassi Guitar Method in Terms of Content
Authors: Ceviz Berk
Published: September 2023

The aim of this study is to investigate the “Carcassi Guitar Method” in terms of content. The research has a descriptive design based on the document analysis model, one of the qualitative research methods. Within the scope of the research, the edition of Matteo Carcassi’s guitar method, the original name of which was “Methode Complete pour La Guitarre”, named “Carcassi Method for the Guitar”, published by Oliver Ditson Company with the editorship of G.C. Santisteban, was obtained, and the 12 parts of the method and the subjects included in the chapters were examined by documentary scanning method. As result of the research; It has been revealed that the content of the method includes scales, cadences, etudes and pieces in all tones, exercises related to the subject are included in all parts of the method, on the other hand, the method is far from being a source of repertory due to the low number of pieces in the content.
Investigation of the Effect of University Sports Environment on Academic Motivation
Authors: Emre Çingöz Yunus , Altuğ Tolga
Published: September 2023

The aim of this study is to examine the effect of university sports environment perception on academic motivation. A total of 206 students studying at various faculties of Bayburt University participated in the research. In the study, the “Personal Information Form” created by the researchers to determine the demographic information of university students, the “University Sports Environment Scale” to determine the university sports environment, and the “Academic Motivation Scale” to determine the academic motivation levels were used. The analysis of the obtained data was made in the statistical program (SPSS 25). According to the results obtained, it was determined that male participants had higher perception levels of university sports environment and academic motivation levels compared to female participants. In the analysis of the data according to the age variable, it was determined that the participants in the age group of 24 and over had higher perception levels of the university sports environment than the participants in the 20-21 age group. When the data were analyzed according to the faculties of the participants, it was found that the participants in the faculty of sports sciences had higher perception levels of the university sports environment compared to the participants in the vocational school. When the correlation between Academic Motivation and University Sports Environment Perception is examined, it is seen that there is a positive and significant relationship between University Sports Environment Perception and Academic Motivation, and all of the University Sports Environment sub-dimensions are the predictors of organizational happiness.
Development, Implementation, and Evaluation of An Effective Feedback Program for School Principals to Improve In-class Teaching
Authors: Balcı Suphi , Özkan Habib
Published: September 2023

This study aims to develop a program on giving effective feedback (GEFP) which is designed to improve principals’ feedback capacities that support teachers’ in-class teaching and to examine the impact of this program. The program covers leadership, supervision, classroom observation, trust, active listening, feedback and statistical analysis topics. Experimental mixed method design was used in this research. The study group and sample of the research consist of 16 school principals and 602 teachers working in the experimental (N=8) and control (N=8) group schools in the province of Hatay in the 2018-2019 academic year. The "school principal feedback scale" was used as the quantitative data collection tool, and a semi-structured interview form was used as the qualitative data collection tool. It was concluded that GEFP contributed significantly to both the process and function factors of the feedback and increased the capacity of school principals to give effective feedback within the scope of improving teaching. The calculated effect size revealed that the contribution of GEFP to the function factor is higher than the process factor. Qualitative findings revealed that school principals realize the importance of supervision and feedback, improve themselves professionally, change their managerial behaviors positively, and show instructional leadership behaviors. As a result, it was determined that school principals started to give effective feedback by demonstrating behaviors related to the feedback process literature after GEFP. Considering the contribution of giving effective feedback to teachers to improve their teaching, it is recommended that GEFP should be provided for all school principals as in-service training.
Frequency and Treatment of Impacted Upper Central Incisors with Low-Frequency Ultrasound
Authors: Гасымова З.В.к.
Published: September 2023

Статья посвящена актуальной проблеме ортодонтии, в частности зубочелюстным аномалиям, обусловленным ретенцией зубов. Приведены сведения о частоте встречаемости ретенции зубов, выявленной при обследовании 11 030 пациентов, обратившихся в ортодонтическую клинику, из них 4124 человека (37,39%) мужского пола и 6906 (62,61%) – женского. С учетом соотношения первых постоянных моляров по классификации Энгля пациенты были разделены на 3 группы: 1-я группа – нейтральное соотношение – 5179 пациентов (46,95±0,52%), 2-я группа – дистальное соотношение – 4456 пациентов (40,39±0,51%), 3-я группа – мезиальное соотношение – 1395 пациентов (12,64±0,35%). У 14 человек выявлена ретенция обоих верхних резцов, что составляет 0,126±0,005%, ретенция верхнего правого центрального зуба (11-й зуб) была диагностирована у 66 человек – 0,59±0,005%, ретенция верхнего левого центрального зуба (21-й зуб) была определена у 60 человек – 0,54±0,005%. Несмотря на малый процент, проблема ретенции резцов верхней челюсти является актуальной, так как при этом нарушается не только функция зубочелюстной системы, но и эстетика улыбки, что играет большую роль в качестве жизни пациента. Нами разработан «Способ стимуляции задержавшихся в прорезывании постоянных зубов» с помощью низкочастотного ультразвука, на который получен патент РФ № 2559934 от 20.07.2015, позволяющий проводить эффективное лечение пациентов с задержкой прорезывания резцов верхней челюсти. Представлен клинический пример лечения пациентки данным способом.

The article is devoted to the current problem of orthodontics, in particular, dental anomalies caused by tooth impaction. Data on the incidence of dental impaction revealed during examination of 11,030 patients who applied to the orthodontic clinic, including 4,124 (37.39%) males, and 6906 (62.61%) females, are presented. Taking into account the ratio of the first constant molars according to Angle classification, patients were divided into 3 groups: 1 group – class 1 – 5179 patients (46.95±0.52%), 2 group – class 2 – 4456 patients (40.39±0.51%), 3rd group – class 3 – 1395 patients (12.64±0.35%). 14 people showed a impaction of both upper incisors, which is 0.126±0.005%, an impaction of the upper right central (11 tooth) was detected in 66 people – 0.59±0.005%, an impaction of the upper left central (21 tooth) was detected in 60 people – 0.54±0.005%. Despite the small percentage, the impaction problem of the maxillary incisors is relevant, since this disrupts not only the function of the maxillary system, but also the aesthetics of smile, which plays a large role in the quality of life of the patient. We have developed a "Method for stimulating impacted permanent teeth" using low-frequency ultrasound, for which the patent of the Russian Federation No. 2559934 from 20.07.2015 was obtained, which allows us to carry out effective treatment of patients with delayed eruption of the maxillary incisors. A clinical example of the patient’s treatment by this method is presented.
Preliminary molecular identification of proteolytic and lipolytic-enzyme producing bacteria isolated from sediment of Litopenaeus vannamei pond
Authors: Ayuningrum Diah , Novitasari Diva Triza , Sabdaningsih Aninditia , Jati Oktavianto Eko
Published: September 2023

The enzyme is a catalyst that serves as an accelerator in a biochemical process. A hydrolytic enzyme is among the existing enzymes useful for environmental organic waste degradation. This research aimed to (1) investigate the ability of bacteria isolated from Litopenaeus vannamei pond sediment to produce proteolytic and lipolytic enzymes, (2) identify the isolates with 16S rRNA gene amplification, and (3) construct a phylogenetic tree according to the 16S rRNA genes. The preliminary proteolytic assay consisted of a skim milk agar medium and the lipolytic assay consisted of a Tween 20/80 medium or so-called precipitation test. Among 28 bacterial isolates, 4 of them showed potential for proteolytic activity and 6 of them showed lipolytic activity as well. Further, the amplification of 16S rRNA gene showed that 5 out of the 28 isolates were closely related to Bacillus infantis SA 3.2 (IM8), Marinobacter koreensis SB 1.1 (IM6), Vibrio algynolyticus SA 4.2 (IM6), Streptomyces euryhalinus SB 1.2 (IM6), and Cytobacillus kochii SC 3.4 (IM6). Amongst the most active isolate, one of the was included in Actinobacteria phylum. Many Bacilli strains shows enzymatic activity such as amylase, protease and lypase. The genus Marinobacter also found to be able to produce hydrolytic enzyme such as amylase and protease. Furthermore, the genus Vibrio such as V. algynoliticus produce several enzymes i.e., gelatinase, lecithinase, caseinase, amylase and lipase. In summary, the bacteria from L. vannamei pond sediment exhibit a potential as proteolytic and lipolytic enzyme producers.
Effect of salinity and biopesticide on Arthrospira platensis mass culture growth, metabolites, and bacterial diversity
Authors: Rohmawati Irma , Adji Basith Kuncoro , Andeska Dea Putri , Suyono Eko Agus
Published: September 2023

Arthrospira platensis mass culture contamination is a recurring concern. Salinity alteration appears to be a promising approach, given that A. platensis can withstand various salinities. In addition, biopesticide is also expected to eliminate the bacteria. Therefore, it is critical to investigate the effects of salinity and biopesticide on the growth, nutritional value, and bacterial diversity of A. platensis mass culture. A completely randomized design was used, with five salinity treatment levels: 5 ppt (S5B), 10 ppt (S10B), 15 ppt (S15B), 20 ppt (S20B), and 25 ppt (S25B), with 0.5 ml/L of biopesticide Azadirachta indica applied on days 2 and 4. The growth rate was calculated using daily density and biomass, and on day 7, carbohydrates, proteins, lipids, and pigments were determined. Furthermore, the contamination test and bacterial diversity were determined using Total Plate Count and Next-Generation Sequencing, respectively. The results showed that the S15B had the fastest growth rate and the largest carbohydrate content. However, S5B produced the best results in terms of protein, chlorophyll, and phycocyanin content, while S25B produced the most carotene and lipids. Proteobacteria were the most abundant in all NGS samples. The number of OTU treatments obtained for A (NCD7), B (NCD0), and C (S15BD7) were 646, 636, and 286, respectively. Moreover, C (S15BD7) was the most effective treatment to reduce bacterial diversity contamination, in which several bacterial diversity, including Acidobacteriota, Chloroflexi, Gemmatimonadota, Myxococcota, and Desulfobacterota, were eliminated completely. As a result of the salinity adjustment and the use of biopesticides, the mass culture of A. platensis was able to grow more quickly and contain more nutrients while having less bacterial diversity.
OZONE MICRO-BUBBLE WATER (OMBW) AS RAW CHICKEN SANITIZER AGAINST Salmonella spp. AND THE EFFECT DURING TEMPERATURE ABUSE STORAGE
Authors: Nalle Ryan Pieter I , Cakswindryandani Ni Luh Putu R. , Elvani Siska
Published: September 2023

Ozone micro-bubble water (OMBW) can be used as sanitizer to wash fresh food products in order to eliminate microbiological contamination. A trial was carried out to determine the effectiveness of OMBW as a washing solution for raw chicken breast on the growth and concentration of cocktail mix Salmonella spp. (S. Enteritidis DMST 15676, S. Derby DMST 16879, S. Newport DMST 15675 and S. London DMST 7110). The washing treatment was carried out by dipping the artificially contaminated raw chicken breast in 1 and 2 ppm of OMBW or sterilized water (control) and shaken at 80 rpm for 5 minutes. The samples were kept at 4°C for 24 h before being exposed to the temperature abuse condition. The temperature abuse condition was carried out continuously from 10° C for 4, 6 and 8 h up to 30° C for 2 h. After the washing process, Salmonella spp. was greatly reduced by 1 and 2 ppm OMBW, significantly different (P<0.05) from washing with sterilized water. Washing with 1 ppm OMBW, 2 ppm OMBW and sterilized water reduced the Salmonella spp. by 0.86, 0.72 and 0.41 log CFU/mL, respectively. Storage of raw chicken fillet at the recommended temperature of 4° C for 24 h, inhibited the growth of Salmonella spp. in samples that had previously been washed with 1 and 2 ppm OMBW, while samples washed with sterilized water showed a slight increase in Salmonella spp. numbers, but was not significantly different (P>0.05) from the other treatments. At the end of temperature abuse storage, the Salmonella spp. concentration in all samples increased from the initial counts.
THE EFFECT APPLICATION THE EFFECT APPLICATION OF FISH WASTE LIQUID FERTILIZER AND ACTIVE POWDER OF AHL IN IMPROVING NUTRIENTS CONTENT OF N AND P ON ALFISOL AND YIELD OF TOMATO
Authors: Soetedjo IN Prijo , Benggu Y I. , Kappa Max , Tupen A B.
Published: September 2023

Alfisol is one of soil type which is a high accumulation of clay on above horizons. This conditions result in a high soil compaction which cause difficulty penetration of plant root. Moreover, this type of soil is low organic matter resulted in low nutrients content such as Nitrogen, Phosphorus and Potassium. A research had been conducted at village of East Penfui, District of Kupang since May to August 2022. Main aim of the research was to determine effect various concentration of fish waste liquid fertilizer and active powder of AHL in improving levels contain of Phosphorus, and Potassium and yield of tomato. The research was designed Completed Random Designed with three replications. Treatments of the research were control (LO), 15 ml liquid fertilizer of fish waste (L1), 25 ml liquid fertilizer of fish waste (L2), 35 ml liquid fertilizer of fish waste (L3), 45 ml liquid fertilizer of fish waste (L4), 15 ml liquid fertilizer of fish waste (L5) + 0.2 g active powder of AHL, 25 ml liquid fertilizer of fish waste (L5) + 0.2 g active powder of AHL (L6), 35 ml liquid fertilizer of fish waste (L5) + 0.2 g active powder of AHL (L7), and 45 ml liquid fertilizer of fish waste (L5) + 0.2 g active powder of AHL (L8). Parameters measurements were available of Phosphorus, total Nitrogen and Yield of Tomato. All data were analyzed by using Analysis of Variant followed by Duncan Multiple Range Test at 5% level. Result of the research showed that application of 45 ml liquid fertilizer of fish waste (L5) + 0.2 g active powder of AHL (L8) resulted significantly highest contents of available of Phosphorus (33.41 ppm), total Nitroegn (1.23%). Meanwhile, application of 25 ml liquid fertilizer of fish waste (L5) + 0.2 g active powder of AHL (L6) resulted a highest of of tomato by 526.22 g per plant which is not significantly different to application of 45 ml liquid fertilizer of fish waste (L5) + 0.2 g active powder of AHL (L8)
MOTIVASI BELAJAR MAHASISWA PGSD UNDANA PADA PEMBELAJARAN DARING (STUDY FROM HOME) MENGGUNAKAN APLIKASI GOOGLE CLASSROOM DI MASA PANDEMI COVID-19
Authors: Nurhabibah Sarah , Ga Paulina Riwu
Published: September 2023

This quantitative survey research aims to explain the learning motivation of PGSD UNDANA students in online learning (study from home) using the google classroom application during the Covid-19 pandemic. The research subjects were the third-semester students of class III E and III G totaling 93 people. The technique used is a survey technique with a Likert scale and a survey made and can be accessed by students via a google form. The data analysis is done by calculating the percentage of each indicator. The results showed that the percentage of learning motivation of students in the Education Study Program for Elementary School Teachers at Nusa Cendana University in online learning using the google classroom application during the Covid-19 pandemic was 92.12% with very good criteria
PENGARUH MODEL PROJECT BASED LEARNING TERHADAP KETERAMPILAN PROSES SAINS PADA PEMBELAJARAN IPA MATERI SISTEM PEREDARAN DARAH MANUSIA DI KELAS V SD GMIT MANUMUTI
Authors: Sampe Markus , Riwu Ga Paulina , Benu Harlyanti
Published: September 2023

This study discusses the effect of the Project Based Learning model on science process skills. The background of this research study is the low science process skills of students in science learning and learning that still uses conventional models. The purpose of this research is to examine the effect of the Project Based Learning learning model on science process skills. The type of research used is quantitative. The research method uses the One Group Pretest Posttest Design with the Pre-Experimental research design. The instruments used were observation sheets, student worksheets, and science process skills questionnaire sheets which were used as pre-test and post-test. The sampling technique in this study is by taking simple random sampling, the sample used is 1 class, namely VA. The research was conducted at SD GMIT Manumuti, Kupang Regency. Based on the research, it was found that from all indicators of students' science process skills, the results of calculating the independent t-test hypothesis using SPSS 22 obtained the results seen from Sig. (2-tailed) < α 0.05, namely 0.00, this shows that H0 is rejected and H1 is accepted. This means that the Project Based Learning (PjBL) learning model has a significant influence on science process skills.
PERAN GURU SEBAGAI FASILITATOR DALAM MENINGKATKAN MINAT BELAJAR PESERTA DIDIK DI SD INPRES NUNBAUN DELHA KOTA KUPANG
Authors: Koroh Taty R. , Lehan Andriyani A. D. , Moykari Ferderika M.
Published: September 2023

This research aims to know teacher role as a fasiliator in increasing students learning interst is at elementary school Inpres Nunbaun Delha, Kupang City. The method used is qualitative description, the data were collected used observation, interview and documents. The data analized use data reduction, data presentation, and data drawing conclusions.This research was conducted at elementary school Inpres Nunbaun Delha, Kupang City. The subject of this research is IV, V, VI grade students. Based on the results of research in increasing students' interest in learning at elementary school Inpres Nunbaun Delha, Kupang City, the teacher tries to carry out her role as a facilitator, namely: the teacher listens and does not dominate during learning activities, the teacher is patient by allowing students to learn actively and independently, the teacher respects and humble for each student's work, the teacher is equal to students, the desire to learn by determining the topic without telling the material to students, the teacher does not try to lecture students during learning, the teacher is authoritative, the teacher is open and the teacher is positive during learning.Based on the discussion above, it can be concluded that the teacher as facilitator means: a) the teacher listens and does not dominate; b) the teacher is patient; c) the teacher respects and is humble; d) teachers act as equals; e) desire to learn; f) the teacher does not try to lecture students; g) the teacher is authoritative; h) teachers are open and; i) the teacher is positive.
PENINGKATAN HASIL BELAJAR SISWA KELAS III SDI FATUKOA TENTANG PENJUMLAHAN DAN PENGURANGAN PECAHAN MELALUI PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE STAD BERBANTUAN MEDIA BLOK PECAHAN
Authors: Benu Adam Bol Nifu , Samo Damianus Dao , Cardoso Olivia Mariana
Published: September 2023

This study aims to improve the learning outcomes of class III A SD Inpres Fatukoa in the material of adding and subtracting fractions using the STAD-type cooperative learning model with the help of fractional block media. The subjects in this study amounted to 31 students. This study used classroom action research which consisted of four stages, namely planning, implementing, observing, and reflecting. Data collection techniques used are observation, tests, and data analysis techniques used are descriptive and qualitative. The results of the data analysis showed that the results of teacher activities in the first cycle obtained an average value of 78.57% and in the second cycle, it increased to 92.85%. Then the results of observing student activity in the first cycle obtained a class success score of 72.04 and in the second cycle, it increased to 87.81. Meanwhile, student learning outcomes in cycle I obtained an average class score of 74.36 with a completeness percentage of 64.51% and in cycle II it became 85.94 with a completeness percentage of 90.31%. So it can be concluded that the use of the STAD-type cooperative learning model with the help of fractional block media can improve student learning outcomes
PENERAPAN MODEL DISCOVERY LEARNING DALAM PEMBELAJARAN PERUBAHAN WUJUD BENDA UNTUK MENINGKATKAN HASIL BELAJAR SISWA KELAS III SDI LASIANA
Authors: Pandie Welmi A. N. , Melo Gaspar , Koro Maxsel
Published: September 2023

This study aims to improve student learning outcomes in learning about themes. 3 things around me sub-theme 3 Changes in the form of learning objects first, in class 3 SDI Lasiana, with the discovery learning model. this type of research is classroom action research is an examination of learning activities in the form of action, which are deliberately raised and occur in a class together, with the following stages: planning, implementation, observation, and reflection. by selecting the SD Inpres Lasiana, Kupang, grade 3 location. the subjects of this study were 25 grade 3 students. data collection was done through observation and testing techniques. the results of the study in the first cycle of the class average value of 60.2 increased to 81.4 in the second cycle, with an increase in the average value from cycle I to cycle II of 21.2. The percentage of classical learning completeness in the first cycle, which was 44%, increased to 92% in the second cycle, with an increase in the percentage of 48%. student activity in cycle I was 62.66 and increased to 80.3 in cycle II, an increase of 17.64. It can be concluded that the application of the discovery learning model in learning about theme 3 things around me sub-theme 3 changes in the form of learning objects 1 can help students in SDI Lasiana Kupang city's class 3 achieve better results
Study of physical, moisture-management and stretch properties of underwear fabrics
Authors: ZULIFQAR ADEEL , JOANNE CHUNG WAI YEE , CHAN WING SUET , KAMURL HASAN , THOMAS WONG KWOK SHING
Published: September 2023

This study investigated and characterized the physical properties and their influence on moisture management and
stretch properties of underwear fabric made of different compositions of fibres. It is found that fabric made of finer
filament yarn, having an open and porous structure, smaller stich length, and smaller thickness has higher air
permeability, water vapour permeability, better moisture transport and overall moisture management capacity. It is also
found that elastic recovery is higher in the wale direction in the case of weft-knitted fabrics. Furthermore, a fabric with
longer stich length has higher stretch in both directions and more recovery in the wale direction. In addition, it is found
that warp-knitted fabric has better moisture transport.
Comparative analysis of natural fibres characteristics as composite
reinforcement
Authors: ARI ALİ , KARAHAN MEHMET , KOPAR MEHMET , AHRARI MAZYAR , WASEEM ULLAH KHAN RAJA MUHAMMAD , HUSSAIN MUZAMMAL
Published: September 2023

Due to environmental concerns, natural fibre development is essential, and its utilization has recently attracted more
attention. The use of jute, hemp, linen, sisal, and banana fibres in textile production is widespread around the world.
Additionally, these fibres are widely accessible in many countries, including Pakistan, India, China, Turkey, and the
United States. The objective of this study is to compare the physio-mechanical characteristics of the aforementioned
natural fibres. All of these fibres were obtained locally. Scanning electron microscopy was used to examine the surface
morphology of these natural fibres, and the results revealed that banana and sisal fibres are hollow in comparison to
other fibres. A single fibre tensile testing apparatus was used to evaluate the mechanical characteristics. Banana and
sisal fibres demonstrated the highest breaking strength and elongation, respectively. Fourier transform infrared
spectroscopy was used to investigate the functional groups of these natural fibres. Differential scanning calorimetry and
thermogravimetric analysis were used to investigate their thermal behaviour. Energy Dispersive X-Ray Analysis and
Raman analysis were also carried out to ascertain the chemical composition.
A novel wool dye synthesised via recycling of side fraction of petrol:
metal naphtenates (cyclohexane dicarboxylates)
Authors: YILDIZ AYLİN , MERVE ÖZTAŞ DEĞİRMENCİOĞLU
Published: September 2023

The study aims to produce naphthenates (cyclohexane dicarboxylate) obtained from side fractions of petrol and used
as dyestuff in the textile sector to abate waste-oriented pollution and to reutilize petroleum-based wastes. The
investigations showed that obtaining blue dyestuff from copper, red dyestuff from cobalt and yellow dyestuff from nickel
was possible. Moreover, it was determined that wool fabric could be dyed with good colour fastness with the dyestuffs
mentioned. Therefore, this will help to reduce environmental pollution by addressing a novel and beneficial area of usage
for naphthenates, produced via waste recycling.
Antimicrobial property of functional viscose fibre by using mint extract
Authors: IQBAL WAQAR , YEXIONG QI , YAMING JIANG , OWAIS RAZA SIDDIQUI MUHAMMAD , KHALID RABIA , IQBAL AZEEM , USMAN MUNIR MUHAMMAD , HUSSAIN AZMAT , XU SHANSHAN
Published: September 2023

The use of cellulosic fibres treated with natural extracts can kill bacteria. Viscose is a regenerated cellulosic fibre with
excellent biodegradability. The use of mint extract makes viscose a functional fibre, which gives beneficial results and
can be used as an antimicrobial textile. The results clearly showed that the increasing ratio of the mint extract also
increased the bacteriostatic ratio so that the antimicrobial property against E. Coli and S. Aureus for 100% viscose fabric
is 97% and 94%, respectively. The bacteriostatic ratio against 50/50 cotton/functional viscose is proportionally lower,
i.e., 85% and 81% against E. Coli and S. Aureus. The different number of washings affected the antimicrobial property
of the fabrics in such a way that: the fabric with 100% functional viscose indicated a reduction of 14% for E. Coli,
whereas the antimicrobial property decreased by 15% against S. Aureus after 5 to 20 washes as compared to the fabric
with the blend 50/50. All the samples exhibited antimicrobial property more than 60% after 20 washes. The breaking
strength of the functional viscose fibre decreased by about 12.9% in dry form and 14% in wet state compared with
standard viscose fibre. However, the elongation of functional viscose fibre improved by 6.4% in dry form and 3.7% in
the wet state, resulting in the low modulus of functional viscose fibre. The mosquito repellency rate ranges from 70–90%
against 100% functional viscose fabrics, whereas 60–80% against the fabric is made up of a 50/50 blend for 5 to
20 washes. The overall results show acceptable behaviour against mosquito repellency. A simple approach was applied
to develop antimicrobial textile products with cost-effectiveness and fruitful results.
Fast textile pattern generation combining MRF-based and Gram-based methods
Authors: SUN YUEXIN , CHEN YU
Published: September 2023

Textile pattern design is a tedious and challenging task for designers. This paper proposes a fast textile pattern
generation algorithm that combines MRF-based and Gram-based methods. First, the reconstruction method based on
image optimisation is determined after analysing the specific requirements of textile pattern design. The pre-trained
VGG19 is selected as the style feature extraction neural network. Then, we compare the generation results of various
combinations of style loss functions and propose a multi-resolution image optimisation method. Finally, the smoothing
loss and colour histogram matching are added to improve the generation quality further, thus constructing an image
generation algorithm for textile pattern design. Experimental results demonstrate that our algorithm can effectively
generate complex textile patterns with global style and local detail features. The average image generation time is 575s,
over 84.3% faster than traditional algorithms. At the same time, this algorithm is convenient for switching styles and
requires lower computational capability. It can improve pattern design efficiency and promote the application of image
generation technology in textile design.
Performance evaluation of sustainability in a textile firm via multi-criteria
decision-making method
Authors: GÜNDÜZ GONCA ŞİMŞEK , ÇAĞDAŞ GÜNDÜZ
Published: September 2023

Today, the sustainability approach is an integral part of business life. Especially, considering the damage that various
events can cause to the environment, environmental sustainability (ES) is getting much more attention. From this aspect,
the textile industry which can cause serious environmental damage, should integrate a sustainability approach into its
management concept. Therefore, decision-makers and practitioners need to evaluate the sustainability performance of
the industry. Multi-criteria decision-making (MCDM) methods help them to evaluate sustainability performance usefully.
This paper evaluates the sustainability performance of a selected company in the textile industry over the years by
environmental performance indicators. The technique for Order Preference by Similarity to Ideal Solution (TOPSIS)
methodology is used to evaluate sustainability performance.
Profil Penatalaksanaan Odontektomi di RSUP Prof. Dr. R. D. Kandou Tahun 2022
Authors: Mintjelungan Christy N. , Mariati Ni Wayan , Manurung Imelda Ch.
Published: September 2023

Abstract: Odontectomy is one of the managements when the teeth cannot erupt or partially erupted (impacted) by creating a mucoperiosteal flap and reducing the bone around the impacted tooth. Odontectomy can be done in general hospital, dental hospital and dental practice.  Prof. Dr. R. D. Kandou Hospital is one of the general hospitals in Manado that provide odontectomy or surgical extraction. This study aimed to obtain the profile of odontectomy management at Prof. Dr. R. D. Kandou Hospital. This was a retrospective and descriptive study. Samples obtained by using total sampling method were medical records of all patients that underwent odontectomy at Prof. Dr. R. D. Kandou Hospital in 2022. Data were processed descriptively and presented in distribution tables. The results showed that female patients were more dominant than the males (55% vs 45%). The most frequent age group was 17-26 years old (40%). The most common job in this study was civil servant (16.5%). The most frequent number of extracted teeth was four teeth (46,5%) in regio 4. In conclusion, most patients that underwent odontectomy at Prof. Dr. R. D. Kandou Hospital were females, age range 17 to 26 years old, worked as civil servants, underwent odontectomy on four teeth at once and at the fourth region (lower right).
Keywords: odontectomy; mandibular third molar impaction; referral hospital
 
Abstrak: Odontektomi merupakan salah satu penatalaksanaan pada keadaan gigi tidak dapat bertumbuh atau bertumbuh sebagian (impaksi) dengan pembuatan flap mukoperiosteal dan mengurangi sebagian tulang yang berada di sekeliling gigi tersebut. Tindakan odontektomi dapat dilakukan di rumah sakit umum, rumah sakit gigi dan mulut serta klinik dokter gigi. Salah satu rumah sakit yang menangani tindakan odonektomi yaitu RSUP Prof. Dr. R. D. Kandou. Penelitian ini bertujuan untuk mengetahui profil penatalaksanaan odontektomi di RSUP Prof. Dr. R. D. Kandou. Jenis penelitian ini ialah deskriptif retrospektif. Sampel diambil dengan menggunakan total sampling yaitu seluruh pasien yang menjalani tindakan odontektomi di RSUP Prof. Dr. R. D. Kandou Manado tahun 2022. Instrumen penelitian ialah rekam medis pasien odontektomi RSUP Prof. Dr. R. D. Kandou Manado. Data diolah secara deskriptif lalu disajikan dalam tabel distribusi. Hasil penelitian mendapatkan bahwa pasien perempuan lebih banyak daripada laki-laki (55% vs 45%). Kelompok usia terbanyak ialah 17-2 tahun (40%). Jenis pekerjaan yang paling sering ditemukan ialah aparatur sipil negara/ASN (16,5%). Jumlah gigi yag dilakukan odontektomi terbanyak ialah empat buah (46,5%) pada regio 4. Simpulan penelitian ini ialah pasien yang terbanyak menjalani penatalaksanaan odontektomi di RSUP Prof. Dr. R. D. Kandou ialah berjenis kelamin perempuan, usia dewasa 17–26 tahun, pekerjaan sebagai ASN, menjalani odontektomi dengan empat gigi sekaligus, dan pada regio 4 (kanan bawah).
Kata kunci: odontektomi; impaksi molar tiga mandibular; rumah sakit rujukan
Analisis Kerusakan Kepala Silinder Blok Mesin Pada Kendaraan Jenis Minibus Kapasitas 1500 CC
Authors: Zayadi Ahmad , Sungkono  , Masyhudi
Published: September 2023

Abstrak,

Kendaraan roda empat merupakan salah satu moda transportasi yang umum digunakan pada era kini, pada umumnya kendaraan roda empat memiliki kepala silinder untuk menempatkan katup-katup dan tempat mantel pendingin. Apabila pada kepala silinder tersebut mengalami kerusakan maka akan mengakibatkan terganggunya sistem kerja mesin dalam jangka waktu yang panjang. Pada bagian mesin terdapat komponen kepala silinder apabila mengalami kerusakan maka akan membutuhkan waktu yang cukup lama untuk proses perbaikan. Dari informasi yang diperoleh bahwa kepala silinder mengalami kerusakan pada jarak tempuh 80.000 km. Kerusakan yang dialami kepala silinder adalah timbulnya suara kasar pada mesin, bercampurnya air pendingin ke ruang bakar dan temperatur suhu cepat naik, pada penelitian ini akan dilakukan kajian terhadap kerusakan yang terjadi pada kepala silinder tersebut. Berdasarkan hasil pengujian makrostruktur  korosi terjadi akibat fluida pendingin mesin selain itu terdapat deposit yang melekat sangat kuat dan bersifat korosif kepala silinder pada blok mesin, pengujian mikrostruktur terlihat adanya endapan (hitam) yang diduga mempengaruhi proses korosi, butiran dendrit dan batang dalam mikrostruktur tidak mengalami perubahan ukuran butir. Berdasarkan pengujian kekerasan hasil menunjukan nilai kekerasan permukaan yang rusak sebesar 102,22 HV dan nilai kekerasan permukaan yang tidak rusak sebesar 102 HV berdasarkan tersebut kerusakan pada kepala silinder blok mesin tidak disebabkan oleh deformasi material akibat beban mekanik dan thermal. Hasil uji komposisi kimia kepala silinder yang mengalami kerusakan adanya penurunan Al 1,1%, Si 0,11%, Cu 0,37, Fe 0,088% dan Mg 0,081% dan adanya penurunan komposisi kimia unsur penyusun material tersebut diakibatkan oleh interaksi air dengan permukaan kepala silinder yang ditandai dengan terbentuknya oksida dari Al,Si,Cu,Fe, dan Mg. Berdasarkan hasil perngujian tersebut kerusakan kepala silinder lebih disebabkan karena kurangnya melakukan perawatan terhadap blok mesin agar komponen dapat bertahan lama sehingga kinerja dari mesin terjaga optimal.
Prediction of Strap Joint Design Margin in After Treatment System
Authors:   Department of Design Engineering, Pimpri Chinchwad College of Engineering, Pune (Maharashtra), India., Pawar Aniket , Deshmukh Kishor ,   Applied Mechanics Engineer-Technical Specialist, Cummins Technical Center India, Pune (Maharashtra), India.
Published: September 2023

The automotive vehicle has an exhaust system, also known as the after treatment System. It consists of different components such as Diesel Oxidation catalysts (DOC), Diesel Particulate Filters (DPF), Selective Catalytic Reduction Systems (SCR), etc. These components are mounted in the chassis with the help of strap joints. The strap joints provide flexible and serviceable connections between ATS bodies and chassis. The strap joint assembly consists of a T bolt, trunnion, and nut with strap. As the nut tightened, the tension induced in the strap, which results in clamping the body. If the tension in the strap is not sufficient, it may cause the failure of the joint. The failure can be yielding of material, slipping, and separation of the body. The strap joint should be designed so that these kinds of failures can be avoided. This paper presents the work on the calculation of the design margin using analytical and FEA methods. The failure modes addressed in this paper are yielding of the strap joint due to applied preload on the T bolt, slipping, and separation of the ATS body from the strap due to the application of dynamic loads such as acceleration G loads in multiple directions. The acceleration load is calculated from the PSD profile. For calculating design margins from the FEA method, nonlinear analysis is performed, followed by PSD analysis to estimate the bracket reaction forces. These reaction forces are used to calculate slip and separation margins. The tests were performed under similar conditions on a shaker table, and the results from both analytical and FEA methods were correlated with test observations to validate the proposed method of calculation of strap join design margin.
Hurdles to Knowledge Management Application in Enhancing Service Delivery at The National Land Commission Nairobi County, Kenya
Authors: Oduli Susan , Wambiri Daniel
Published: September 2023

Efforts to address the ongoing problem facing Kenyan communities may be summed up by the National Land Policy and the National Land Commission. The issue has exacerbated by the rapid transition from the traditional method of land ownership in Kenya, where land is held in common, to a scenario in which land is held by individuals and the affluent could gain an advantage over the poor without knowledge management and any pushback from the community. The study's focus was on the knowledge management practices used by the Kenya National Land Commission, with the ultimate goal of enhancing the quality of those practices and the services they provide to the general public. Therefore, the study sought to investigate hurdles to knowledge management application in improving service performance at the National Land Commission, Nairobi County. A descriptive survey methodology was used for this study. The sample size was 150 people including NLC managers, customer service representatives, secretaries and customers and it was selected using stratified random selection to ensure that it is representative of the institution as a whole. The study was able to gather both primary and secondary information through conducting surveys and scheduling interviews. Cronbach's alpha was utilized to determine the reliability of the research instruments in the Test-retest technique. Means, percentages, standard deviations, tables, and figures were used to display the findings of inferential and descriptive statistics performed on the gathered data in SPSS (version 23). The biggest barriers that hurt knowledge management implementations are awareness, time, and culture. Many KM programs struggle to gain traction because they aren’t marketed in a way that cuts through the noise and resonates with employees. The study recommends that the organizational management must understand where and in what forms knowledge exists. The organization need to create a culture that values and rewards knowledge sharing, providing employees with the tools and resources they need to share knowledge through knowledge management tools, training programs and communication channels. For the organization to achieve the goal of knowledge management practice, they should enable and promote a culture of learning and development, creating an environment where employees are encouraged to share information to better the collective workforce. The organization should brainstorm catchy terms and phrases to talk about KM, along with a logo or motto that aligns with the organization’s culture and values.
MAKING MARKETS ONLINE AND DATABASE MARKETING
Authors: Chaudhary Sunil , More Sunil
Published: September 2023

The Internet is a worldwide network of computer networks and the World Wide Web is one of the Internet's
most popular services, providing access to over two billion web pages. The twenty-rst century will be the
age of a digitally enabled social and commercial life. It appears likely that e-commerce will eventually impact nearly all
commerce, or that all commerce will be e-commerce by the year 2050. E-Commerce is the use of the Internet and Web to transact
business. In E-Commerce the focus is on digitally enabled commercial transactions between and among organizations and
individuals. Digital enabled transactions include all transactions mediated by digital technology. This means transactions that
occur over the Internet and the Web. Commercial transactions involve the exchange of value (e.g. money) across organizational
or individual boundaries in return for products and services. Market makers are companies that create place, rules and
infrastructure for trading. Market-makers provide value by way of supply chain integration, transaction cost savings and
offering a payment gateway. They earn revenue from transaction fees, mark-ups, subscription, data sales and system
integration consulting. On the Internet, we nd similar companies like eBay.
IMPACT OF E-COMMERCE AND ROLE OF ONLINE SOCIAL NETWORKING SITES IN BRANDING AND ONLINE REPUTATION MANAGEMENT
Authors: Chaudhary Sunil , More Sunil
Published: September 2023

The e-commerce industry is truly open to everyone. E-commerce businesses that have generated prots
have done so only after being in business for several years. Sizeable investments were also put into
marketing, advertising and promotions. Online businesses like Amazon.com, eBay.com, Priceline.com and others were created
by entrepreneurs who raised millions of dollars in investment capital and invested that money in the formations and marketing
of their online business ventures. Retailing is the most active and attractive sector of the last decade. While retailing industry
itself has been present since ages in our country, it is only that the recent past has witnessed so much dynamism. The world is
moving towards Electronic Commerce activities at a very fast pace. Internet enables consumers to perform many stages of the
sales process in a quick and efcient manner. It also provides comprehensive product information, facilitates comparison
shopping, and allows for a condensed sales process. Online buying refers to buying through the internet.