bluuebunny/crossref_metadata_2025 huggingface dataset:
Wind propulsion of ships to decarbonize maritime transport
Authors: Maimon Aurel Dan
Published: January 2024

The International Maritime Organization and the European Commission are demanding increasingly significant decarbonization efforts from shipowners, and maritime freight should be integrated into the EU emissions trading system. Several technologies exist for sail propulsion: the Flettner rottor, rigid panels made of composite materials, sails and in particular the kite, innovative in this field. Studies show that 3700 to 10700 ships could be equipped with sail propulsion systems by 2030. The release of 3.5 to 7.5 million tonnes of CO2 could thus be avoided in 2030. In this article, the fundamentals of the ship propulsion by the wind are presented: a credible, efficient technological proposition available today to ensure the sustainability of transport.
Comparative analysis of seakeeping methods: numerical, software simulation and experimental study
Authors: Perijoc Dumitru Silviu , Domnișoru Leonard
Published: January 2024

The current study case presents a comprehensive comparison of seakeeping analysis methods, utilizing the seakeeping numerical analysis based on Lewis’s form description of a hull, Ansys Aqwa, and experimental data obtained from the towing tank of the Faculty of Naval Architecture in Galati. The primary objective of this study is to assess the accuracy and reliability of two numerical approaches in predicting the seakeeping performance of a vessel under varying conditions. The experiment was carried out under two scenarios, one with the model at zero speed and another with the model towed at 1.28 m/s and 180o heading angle. The diverse set of conditions aimed to simulate real-world scenarios and capture the dynamic nature of ship motions in waves. The employing of Lewis forms numerical analysis, Ansys Aqwa simulation, and experimental data, the results were compared and evaluated in terms of their accuracy and agreement.
Study case on the characteristics and performances of a propulsion system for a crude oil tanker
Authors: Ionita Sebastian , Amorăriței Mihaela
Published: January 2024

This paper presents aspects regarding the analysis of the characteristics and performances of a propulsion system for a crude oil tanker. The study involved several steps: first, the ship’s resistance and the necessary propulsive power were calculated to choose and design the main components: engine, transmission and propeller; to obtain maxim propulsive efficiency at the desired speed, with low fuel consumption and reduced CO2 emissions. Four slow Diesel engines were selected and the optimal propellers were designed to analyse and adopt the more efficient solution. A number of factors were taken into account for ship propulsion system components selection such as: required power, revolution rate to ensure an optimal propeller diameter to be located behind the ship, the specific fuel consumption parameters, desired ship speed, etc.
Comparative analysis of the manoeuvrability performance for a 9000 tdw chemical/oil tanker
Authors: Agache Ana Maria , Bosoancă Radu
Published: January 2024

The concept of manoeuvrability is very important for efficient ship operation but also in ship safety. The aim of this paper is to test and perform a comparative analysis of manoeuvrability performance of a 9000 tdw chemical/oil tanker. The comparative analysis has been performed between the results obtained based from two software’s, namely PHP and MPP, but also between the results obtained in the sea trials with the output data from MPP. In this way it will be shown the differences (if any) in terms of manoeuvrability., and if the two used platforms are effective for providing preliminary determination of performances of manoeuvrability.
Effect of distance between the hulls variation on the total resistance of a catamaran
Authors: Dițu Constantin Petre , Mandru Andreea , Pacuraru Florin
Published: January 2024

The purpose of this study case is to assess the total resistance and investigate the fluid flow around a scale model catamaran varying distance between the diametral planes of the two hulls. This study is focused on accurately determining the total resistance encountered by the catamaran while it moves through water and, additionally, on understanding how the fluid flow behaves around the vessel with these design variables.
Numerical simulation for predicting the respose of an offshore heavy lift barge in regular and irregular waves
Authors: Bekhit Adham , Pacuraru Săndița
Published: January 2024

This study case concerns the prediction of the hydrodynamic response of an offshore heavy lift barge in the regular and irregular waves. The study focuses on predicting the six degrees of freedom responses for the barge in the operation condition when the ship speed is equal to zero, at various heading angles (0~180˚) and for several wave frequencies (0.02~2.0 rad/s). The numerical simulation is carried out using the 3D diffraction /radiation motion solver Hydrostar software that is based on potential theory to predict the wave-body interactions. All the hydrostatics, loading and sailing aspects are initially estimated, and then introduced as an input in the simulation process corresponding to the ship speed and heading directions. For the irregular sea simulations, the ITTC spectrum is used to describe the wave for a generic study case in the Black Sea to make the study feasible for offshore applications in operational conditions where the ship speed is equal to zero.
Regarding the Use of Finite Element Modeling for Propulsion System Sizing in V.T.O.L. Drones
Authors: LEOPA Adrian
Published: January 2024

At the moment, VTOL drones have proven their efficiency in several areas, for this reason, they have become indispensable tools for a large category of applications. This paper presents aspects related to the dimensioning stage of the propulsion system of a drone based on finite element modeling, to establish the traction force necessary to ensure sustentation.
Determination of Stress Concentration Factor for a Stepped Bar Under Bending Loading: An Artificial Neural Networks Approach
Authors: BOAZU Doina
Published: January 2024

Even today, charts and formulas derived from experimental determinations are used to obtain the stress concentration factor.Stress concentration factors from charts can be converted into numerical values using computational techniques. Stress concentration factor values were collected in a database and an Artificial Neural Network (ANN) model can be developed for improving the database. ANN model provides accuracy in obtaining the stress concentration factors. Using the static stress concentration factor for a stepped bar under a bending load we can quantify the impact of notches in fatigue.
Challenges in Integrating Green Buildings into Everyday Life
Authors: STANCA Simona
Published: January 2024

In recent decades, problems related to climate change, pollution and resource depletion have become increasingly urgent. Green architecture, also known as green buildings or sustainable construction, is an innovative response to these challenges. In this paper, the concept of green buildings, their benefits, and main characteristics, as well as their role in promoting a sustainable future for architecture and the environment will be explored.Integrating the green buildings into everyday life is an important challenge, but also an extremely necessary one in the context of climate change and concern for environmental sustainability. Green buildings are structures designed to be more environmentally friendly and generate less impact on natural resources. Despite their obvious benefits, however, there are some significant challenges that need to be overcome to promote their integration into everyday life.While these challenges exist, efforts to integrate green buildings into everyday life are still essential to ensure a more sustainable and greener future for future generations. Over time, as technology advances, awareness grows, and regulations improve, these challenges are expected to be overcome and green buildings to become a regular part of the urban landscape.
Recovery of Agricultural Waste to Obtain Compost
Authors: BĂLĂNICĂ DRAGOMIR Carmelia Mariana
Published: January 2024

The aim of this study is to make compost in a specialized container, using household and agricultural waste from own farm and the physicochemical characterization of obtained compost. The physicochemical characterization of the compost samples was carried out through the following determinations: determination of moisture, pH, determination of total soluble salts, determination of nitrate nitrogen, determination of nitrite, determination of ammonium nitrogen and determination of organic matter content. The compost samples analysed showed a high physicochemical quality. The use of compost offers environmentally friendly solutions with a long-term impact on the environment and quality of life.
Hubungan Pendidikan dan Pengetahuan Ibu terhadap Pemberian Asi Ekslusif
Authors: Yazika Rimbawati  , Rini Gustina Sari  , Putu Lusita Nati Indriani
Published: January 2024

Asi Ekslusif adalah Air Susu Ibu yang diberikan kepada bayiusia 0 – 6 bulan tanpa makanan pendamping. TujuanPenelitian ini untuk mengetahui hubungan pendidikan danpengetahuan dengan pemberian Asi Ekslusif. Desainpenelitian ini menggunakan metode survey analitik denganpendekatan cross sectional. Penelitian ini dilakukan di PMBHj. Zuniawati Palembang pada bulan November sampaidengan bulan Desember Tahun 2021. Sampel penelitian iniadalah semua ibu yang memiliki bayi usia 0 – 6 bulanberjumlah 32 responden. Metode pengumpulan datamerupakan data primer menggunakan Cheklist. Hasilpenelitian di analisis secara univariate untuk mengetahuidistribusi frekuensi variabel Asi Ekslusif dengan presentaseyang memberikan Asi Ekslusif sebanyak 19 responden(59,4%) lebih banyak dari yang tidak memberikan AsiEksklusif sebanyak 13 responden (40,6%), distribusifrekuensi variabel Pendidikan dengan presentaseberpendidikan tinggi sebanyak 25 responden (78,1%) lebihbanyak dibandingkan dengan responden yang berpendidikanrendah sebanyak 7 responden (21,9%) dan distribusifrekuensi variabel pengetahuan yang mempunyaipengetahuan baik sebanyak 23 responden (71,9%) lebihbanyak yang mempunyai pengetahuan kurang sebanyak 9responden (28,1%). Hasil penelitian secara bivariate untukmengetahui hubungan variabel pendidikan dan pengetahuandengan Asi Ekslusif. Hasilnya menunjukkan pendidikandengan pemberian Asi Eksklusif didapat nilai p = 0,010 danpengetahuan dengan pemberian Asi Eksklusif p value =0,015. Diharapkan kepada tugas kesehatan yang bekerja diBPM Hj. Zuniawati Palembang untuk lebih meningkatkanpenyuluhan tentang pemberian ASI Eksklusif pada bayi.
Characteristics for the third molar extraction with orthodontic indications in the aspect of age
Authors: Godovanets O.I. , Muryniuk T.I.
Published: January 2024

The research analyzes the effectiveness of third molar extraction with orthodontic indications in children of different ages. The study was conducted on 95 patients divided into three groups: the I group included 30 children aged 11–13 years; to II – 35 children aged 13–16 years, and III – 30 children aged 16–18 years. Clinical examinations were carried out according to generally accepted methods immediately after tooth extraction, 3 and 6 days later. The paraclinical parameters for the study were the level of lysozyme activity in the oral fluid of observation groups’ children, which was determined according to Horin H. method modified by Levitskyi A. and Zhigina O., as well as the concentration of secretory IgA, which was determined due to simple radial immunodiffusion method. Statistical processing of data was carried out using generally accepted methods of variational statistics. The results of the study show that the age of 11–13 years old is the most reasonable period for third molars extraction with orthodontic indications, which is justified by a shorter duration of postoperative period, fewer complications and a better protective capacity of children's oral fluid in this age period. In particular, in the dynamics of observation of children of the I group in the postoperative period, significantly fewer signs of the inflammatory process were noted, which can be explained by the less traumatic surgical manipulations. On the other hand, in children of II and III groups, the above-mentioned clinical symptoms had a higher degree of manifestation, were diagnosed in a larger number of children and indicated the development of the postoperative inflammatory process. The level of lysozyme activity in the oral fluid of children in the observation groups ranged from (40.87±2.01) units/l to (26.13±1.76) units/l, and secretory immunoglobulin A from (0.35±0.02) g/l up to (0.32±0.02) g/l, which generally indicates a deterioration of local protective reactions with increasing age of children. Keywords: сhildren, hermectomy, postoperative period, lysozyme, immunoglobulins.
FABRICATION AND CHARACTERIZATION OF SUGARCANE BAGASSE BASED CELLULOSE ACETATE/ZEOLITE (CA/Ze) MATERIAL FOR ELIMINATION OF Pb AND Cu IONS FROM AQUEOUS SOLUTIONS
Authors:   Faculty of Environment, VNUHCM - University of Science, 227 Nguyen Van Cu Str., District 5, Ho Chi Minh City 70000, Vietnam, TRUONG TRANG THI CAM , DUONG NGA THI THUY ,   Ho Chi Minh City University of Natural Resources and Environment, 236 Le Van Sy Str., Tan Binh District, Ho Chi Minh City 70000, Vietnam, BUI HA MANH ,   Faculty of Environment, Saigon University, 273 An Duong Vuong Str., District 5, Ho Chi Minh City 700000, Vietnam
Published: January 2024

This study explores the synthesis and characterization of cellulose acetate/zeolite (CA/Ze) fibers as effective adsorbents for the removal of Pb2+ and Cu2+ ions from aqueous solutions. Cellulose acetate was derived from sugarcane bagasse (SCB) and integrated with zeolite to create CA/Ze fibers. Characterization techniques, including FTIR spectroscopy and SEM analyses, confirmed the successful modification and incorporation of zeolite within the fiber structure. Hydration studies revealed the fibers’ stability in water, while adsorption experiments examined factors affecting adsorption capacity, such as pH, time, initial concentration, and reuse. The Langmuir and Freundlich isothermal models were applied to analyze adsorption isotherms. The results demonstrated the potential of CA/Ze fibers for efficient heavy metal removal, with a maximum adsorption capacity for Pb2+ ions of 13.9 mg/g. While the adsorption efficiency decreased after regeneration cycles, CA/Ze fibers displayed promise as sustainable adsorbents. This research contributes to addressing heavy metal pollution while promoting eco-friendly waste utilization.
OBTAINING BALSAMIC POPLAR BUD ESSENTIAL OIL BY THE BAROTHERMAL METHOD AND STUDYING THE EFFECT OF ITS AQUEOUS EMULSIONS ON SEED GERMINATION AND GROWTH OF TOMATO PLANTS
Authors:   Department of Chemistry and Chemical Technology, Manash Kozybayev North Kazakhstan University, 86, Pushkin Str., Petropavlovsk 150000, Kazakhstan, ANNA MECHSHANOVA , VLADILEN POLYAKOV ,   Department of Chemistry and Chemical Technology, Manash Kozybayev North Kazakhstan University, 86, Pushkin Str., Petropavlovsk 150000, Kazakhstan, TEMENUZHKA RADOYKOVA ,   University of Chemical Technology and Metallurgy, 8, Kliment Ohridski Blvd., Sofia 1756, Bulgaria
Published: January 2024

In recent years, there has been a persistent search for new methods and technologies for cultivating specific crops to increase their productivity and improve product quality. The aim of the study was to obtain essential oil from poplar buds by the barothermal method, to standardize the obtained essential oil, to study the effect of an aqueous emulsion of poplar oil on the growth and development of tomato seeds. For obtaining the maximum yield of balsam poplar essential oil, the optimum pressure, input of raw material, and processing time were investigated. The essential poplar oil was standardized according to organoleptic and physico-chemical parameters. The study found that the use of an aqueous emulsion of poplar bud oil had a significant impact on the morphogenesis, physiological and biochemical parameters of tomato seeds.
STATISTICAL OPTIMIZATION OF NaOH PRETREATMENT OF PINE NEEDLES USING BOX-BEHNKEN DESIGN FOR BIOETHANOL PRODUCTION
Authors:   Department of Biotechnology, University of Sargodha, Sargodha, Pakistan, IRFAN MUHAMMAD , GHAZANFAR MISBAH ,   Department of Biotechnology, University of Sargodha, Sargodha, Pakistan, SHAKIR HAFIZ ABDULLAH ,   Institute of Zoology, University of the Punjab, New Campus, Lahore 54590, Pakistan, KHAN MUHAMMAD ,   Institute of Zoology, University of the Punjab, New Campus, Lahore 54590, Pakistan, ASIRI MOHMMED AHMED A. ,   Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, P.O. Box 61413, Abha, 9088, Saudi Arabia, ALI SHAUKAT ,   Department of Zoology, Government College University, Lahore, Pakistan, AHMAD IRFAN ,   Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, P.O. Box 61413, Abha, 9088, Saudi Arabia, FRANCO MARCELO ,   Department of Exact Science, State University of Santa Cruz, Ilheus, Brazil
Published: January 2024

In this study, pine needles were exploited for bioethanol production. Pretreatment is the first and foremost step towards better yield of bioethanol from lignocellulosic biomass. In this study, NaOH pretreatment of pine needles was optimized by the Box Behnken design. Substrate characterization was done by using X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). Maximum cellulose (90%) and total phenolic compounds (51.03 ± 0.002 mM) were recorded under optimized conditions, and structural analysis also revealed the significance of the pretreatment. High F and R2 values and low P values indicated the accuracy and validity of the model. Pretreated biomass was further subjected to saccharification using commercial, as well as indigenous cellulase. Maximum saccharification (49.2%) was observed with commercial cellulase, which led to a 7% ethanol yield employing Saccharomyces cerevisiae. Maximum ethanol yield (7%) was observed in NaOH pretreated biomass. Results proposed that Pinus spp. needles could be potential cellulosic biomass for bioethanol production.
CARBOXY-FUNCTIONALIZED POLYSACCHARIDE MEDIATED GREEN SYNTHESIS OF ANTIMICROBIAL SILVER NANOPARTICLES
Authors:   Centre for Organic Chemistry, School of Chemistry, University of Punjab, Lahore 54590, Pakistan, HUSSAIN MUHAMMAD AJAZ , SHAHEEN ABDULLAH ,   Institute of Chemistry, University of Sargodha, Sargodha 40100, Pakistan, HUSSAIN SYED ZAJIF ,   Department of Chemistry, SBA School of Science and Engineering, Lahore University of Management Sciences, Lahore Cantt. 54792, Pakistan, HUSSAIN IRSHAD ,   Department of Chemistry, SBA School of Science and Engineering, Lahore University of Management Sciences, Lahore Cantt. 54792, Pakistan, HASEEB MUHAMMAD TAHIR ,   College of Pharmacy, University of Sargodha, Sargodha 40100, Pakistan, MUHAMMAD GULZAR ,   Department of Chemistry, Government College University Lahore, 54000 Lahore, Pakistan
Published: January 2024

The present study deals with the green synthesis of silver nanoparticles (Ag NPs) using a chemically modified polysaccharide as a reducing and capping agent. Dextran succinate (Dex-Suc) was synthesized by succinylation of the dextran with succinic anhydride at 80 °C for 24 h under stirring and N2. The Dex-Suc was used as a reducing and capping agent for the synthesis of Ag NPs in the presence of sunlight with high UV index. The Ag NPs were characterized using UV-Vis spectroscopy, SEM, and EDS techniques. The SEM data revealed the preparation of spherical Ag NPs having 50 nm size. The Ag NPs showed antimicrobial properties against different bacterial and fungal strains.
LIGNOCELLULOSE BIOMASS DELIGNIFICATION USING ACID HYDROTROPE AS GREEN SOLVENT: A MINI-REVIEW
Authors:   Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang Al-Sultan Abdullah, 26300 Gambang Kuantan, Pahang, Malaysia, HUSSAIN NUR IZZAH ATIRAH MAT , SALIM NURJANNAH ,   Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang Al-Sultan Abdullah, 26300 Gambang Kuantan, Pahang, Malaysia, MUSTAPHA SITI NOOR HIDAYAH ,   Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang Al-Sultan Abdullah, 26300 Gambang Kuantan, Pahang, Malaysia, MISNON IZAN IZWAN ,   Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang Al-Sultan Abdullah, 26300 Gambang Kuantan, Pahang, Malaysia, RAHIM MOHD HASBI AB ,   Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang Al-Sultan Abdullah, 26300 Gambang Kuantan, Pahang, Malaysia, ROSLAN RASIDI ,   Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang Al-Sultan Abdullah, 26300 Gambang Kuantan, Pahang, Malaysia
Published: January 2024

"Efficient and cost-effective conversion of lignocellulosic biomass into usable forms of energy presents unique challenges. Lignocellulosic biomass, comprising cellulose, hemicelluloses, and lignin, necessitates advanced conversion technologies. Common commercial delignification techniques, including kraft pulping, sulfite pulping, acid hydrolysis, and organosolv pulping, often involve harsh conditions leading to structural changes in lignin and environmental impacts. To address these issues, acid hydrotropes have emerged as a promising method for lignin extraction. Acid hydrotropes, represented by p-toluenesulfonic acid (p-TsOH), enable the solubilization of hydrophobic substances like lignin. This mini-review provides an overview of various lignocellulose fractionation techniques and explores the acid hydrotrope approach. The mechanism behind acid hydrotropic fractionation is discussed, and its performance is evaluated. In conclusion, the review emphasizes the pivotal role of the acid hydrotrope approach in advancing lignocellulosic biomass conversion technology, promoting a sustainable and efficient bio-based economy."
ANTIBACTERIAL ACTIVITY AND STORAGE STABILITY OF HYGIENIC WET WIPES BASED ON SUSTAINABLE NATURAL INGREDIENTS
Authors:   Department of Textile Engineering, Faculty of Engineering, Erciyes University, Kayseri, Türkiye, BAHTIYARI MUHAMMED İBRAHIM , YILMAZ FAZLIHAN ,   Department of Textile and Fashion Design, Atatürk University, Erzurum, Türkiye, BENLI HÜSEYIN ,   Mustafa Çıkrıkçıoğlu Vocational School, Kayseri University, Kayseri, Türkiye
Published: January 2024

Wet wipes are good examples of common textile materials used in daily life. Although they can serve for different purposes, wet wipes for personal hygiene are especially popular, in particular, those with antimicrobial properties. Considering their demand, especially during epidemics, it is expected that the wet wipe market has the potential to expand further. In order to achieve antibacterial properties, wet wipes contain various chemicals, some of which can have a negative impact on human health. By using natural substances, it is aimed to minimize the use of harmful substances in wet wipes and offer innovative products on the market. For this, in the present study, leaf extract and fruit juice from gilaburu plants (Viburnum opulus L.) were used. The solutions obtained were used directly, without the addition of any further chemicals, in the impregnation of nonwoven webs/fabrics. Then, the impregnated nonwoven webs (wet wipes) were analyzed in terms of antibacterial properties and storage stability. The obtained results showed that the wipes (nonwoven webs) impregnated with gilaburu fruit juice could decrease Escherichia coli and Staphylococcus aureus bacteria populations even after 5 weeks of storage.
STRUCTURE DEVELOPMENT AND PROPERTIES OF PLASTICIZED PVA-STARCH-PADDY STRAW COMPOSITES
Authors:   College of Agricultural Engineering and Technology, Punjab Agricultural University, Ludhiana 141004, India, POTDAR PRATIK PANDIT , KAUR PREETINDER ,   College of Agricultural Engineering and Technology, Punjab Agricultural University, Ludhiana 141004, India, SINGH MANPREET ,   College of Agricultural Engineering and Technology, Punjab Agricultural University, Ludhiana 141004, India, KULKARNI MALHARI B. ,   Polymer Engineering, MIT World Peace University S124, Paud Road Kothrud, Pune 411038, India, RADHAKRISHNAN SUBRAMANIAM ,   Polymer Engineering, MIT World Peace University S124, Paud Road Kothrud, Pune 411038, India
Published: January 2024

Paddy straw is often burnt in the fields or disposed of in ways that cause extensive environmental pollution. The present study focused on using paddy straw in bio-compostable composites fabricated with polyvinyl alcohol (PVA) and thermoplastic starch blends as a matrix. Locally available paddy straw was chopped, cleaned and treated with 15% NaOH solution for four hours. The alkali treatment produced changes in the crystal structure and surface morphology of the paddy straw. Then, it was dispersed in blends of PVA and starch solutions containing polyethylene glycol (PEG200) as plasticizer. The PEG200 acted as both plasticizer and compatibilizer, as evidenced by the single glass transition peak and the lower melting point of the film cast from these blends. These composite films had higher thermal stability, increased tensile strength, but also flexibility. These properties were associated with structure development with strong hydrogen bonding interaction between the paddy straw and PVA-starch blends, which was supported by results of characterization studies.
STUDY OF INTEGRATION, DISTRIBUTION AND DEGRADATION OF SUGARCANE BAGASSE FIBER AS PARTIAL REPLACEMENT FOR FINE AGGREGATE IN CONCRETE SAMPLES
Authors:   Instituto Politécnico Nacional-Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Unidad Altamira, Km. 14.5 Carretera Tampico-Puerto Industrial Altamira, Altamira Tamaulipas CP 89290, Mexico, ONOFRE BUSTAMANTE EDGAR , ESPINDOLA-FLORES ANA CECILIA ,   Instituto Politécnico Nacional-Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Unidad Altamira, Km. 14.5 Carretera Tampico-Puerto Industrial Altamira, Altamira Tamaulipas CP 89290, Mexico, CÁRDENAS DE LA FUENTE ANA KAREN ,   Instituto Politécnico Nacional-Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Unidad Altamira, Km. 14.5 Carretera Tampico-Puerto Industrial Altamira, Altamira Tamaulipas CP 89290, Mexico
Published: January 2024

In this study, structural and morphological characterizations were carried out to evaluate the integration, distribution and degradation of sugarcane bagasse fiber (CBF) in a concrete matrix. The samples for evaluation were modified by adding CBF in 0.5% and 1% wt proportions. The modified concrete specimens were exposed to different aggressive conditions over four years before use. The chemical and structural properties of the modified samples were evaluated using Fourier transform infrared spectroscopy, X-ray diffraction and X-ray photoelectron spectroscopy, while the morphology, distribution and fiber degradation in the samples were determined using scanning electron microscopy and confocal laser scanning microscopy, respectively. The results obtained from spectroscopy and X-ray diffraction indicated the presence of cellulose, and showed a change in molecular orientation, which was attributed to the hydrolysis reaction. The microscopy analyses revealed that the CBF did not undergo degradation.
MORPHOLOGICAL, MECHANICAL, ORGANIC VAPOUR PERMEATION PROPERTIES AND BIODEGRADABILITY OF POLY(ETHYLENE-CO-VINYL ACETATE)/WASTE PISTACHIO SHELL-DERIVED CELLULOSE COMPOSITE MEMBRANES
Authors:   Department of Chemistry, MES Mampad College (Autonomous), Affiliated to University of Calicut, Kerala 676542, India, VALIYA PEEDIYAKKAL SHANA JEBIN , CHERUMADATHIL RAJESH ,   Department of Chemistry, MES Kalladi College, Mannarkkad, Affiliated to University of Calicut, Kerala 678583, India, NAMBIDUMANNIL FASEENA ,   Department of Chemistry, MES Mampad College (Autonomous), Affiliated to University of Calicut, Kerala 676542, India
Published: January 2024

Cellulose fibers have attracted interest as a suitable candidate for manufacturing composites. In the present work, cellulose derived from waste pistachio shell was used to prepare composite membranes with poly(ethylene-co-vinyl acetate (EVA) via solution casting, and their morphological, mechanical, organic vapour permeation characteristics and biodegradability were evaluated. Scanning electron micrographs showed that the voids in the EVA polymer were filled effectively by cellulose fibers. The mechanical testing of the composites revealed an improvement in Young’s modulus with the increase in cellulose loading. The permeation of polar and non-polar solvents through the membranes was studied and explained by molar size, molecular mass and polarity of the solvents. Nielson’s permeability equation as modified by Baradwaj was used to analyse the relative permeability of the membranes. Soil burial degradation experiments of the composite membranes showed a decrease in weight and tensile strength, revealing the biodegradability of the membranes.
Dampak Penggunaan Digital Learning pada Pendidikan Dasar
Authors: Mere Klemens
Published: January 2024

Digital learning, atau pembelajaran digital, merujuk pada penggunaan teknologi digital untuk meningkatkan atau menggantikan metode tradisional pembelajaran. Dalam konteks pendidikan dasar, yang mencakup tingkat pendidikan anak-anak usia dini hingga tingkat SMP atau setingkat, penggunaan teknologi ini memberikan dampak yang signifikan. Tujuan penelitian ini adalah untuk menganalisisdampak penggunaan digital learning pada pada pendidikan dasar. Metode yang digunakan dalam penelitian kualitatif dengan studi pustakan atau Literature Review. Tujuannya adalah untuk menganalisis perbandingan teori-teori yang ada dengan teori-teori sebelumnya dalam literatur penelitian. Literatur yang digunakan adalah literatur dari hasil penelitian atau kajian yang disajikan dalam artikel ilmiah. Hasil penelitian menunjukkan bahwa Penggunaan digital learning pada pendidikan dasar memiliki dampak yang signifikan pada berbagai aspek, baik dari segi pembelajaran maupun pengelolaan pendidikan. Digital learning memungkinkan akses lebih mudah terhadap berbagai materi pembelajaran. Guru yang professional di era revolusi 4.0. Digital learning memungkinkan penggunaan multimedia, simulasi, dan permainan edukatif untuk membuat pembelajaran lebih interaktif dan menarik bagi siswa. Penggunaan teknologi dalam pembelajaran membantu siswa mengembangkan keterampilan digital yang diperlukan di era modern.
Pengaruh Media Papan Menjahit Angka Terhadap Kemampuan Mengenal Angka 1 Sampai 5 pada Siswa Hambatan Intelektual Sedang Kelas IV di SLB Bhakti Pertiwi Kalibaru
Authors: Zahro Fatimatus , Ariyanto Dedy , Udhiyanasari Khusna Yulinda
Published: January 2024

Media papan menjahit angka adalah sebuah media pembelajaran yang mempunyai manfaat banyak terutama kemampuan mengenal angka 1 sampai 5 pada siswa, dengan menggunakan media papan menjahit angka yang sesuai dengan bentuk angka secara tidak langsung siswa juga akan belajar mengenal angka. Dan juga media papan menjahit angka ini ada banyak manfaatnya yaitu belajar melatih motorik halus juga dan bisa melatih keterampilan, kreativitas, dan konsentrasi. Penelitian ini bertujuan untuk mengetahui kemampuan mengenal angka 1 sampai 5 melalui media papan menjahit pada siswa hambatan intelektual sedang kelas IV di SLB Bhakti Pertiwi Kalibaru. Jenis penelitian yang digunakan ialah Single Suject Rresearch (SSR). Penelitian ini menggunakan desain A-B. Subjek penelitian ini berinisial A. Dalam penelitian ini menggunakan dua fase yaitu fase baseline (A) dan fase intervensi (B). Pada fase peneliti melaksanakan 15 kali yang di bagi menjadi 2 fase, fase baseline (A) selama 5 sesi dan fase intervensi (B) selama 10 sesi persesi dilakukan selama 60 menit. Dari hasil persentase baseline (A) yaitu 20%,30%, 20%, 40%, dan 20%, sedangkan hasil persentase intervensi (B) yaitu 30%, 40%, 20%, 20%, 20%, 50%, 10%, 30%, 10%. Dan 50%. Hasil yang diperoleh dilanjutkan dengan analisis dalam kondisi dan analisis antar kondisi. Pada persentase overlap yang didapatkan yaitu 0% yang menunjukkan banwa intervensi yang diberikan pada siswa berpengaruh terhadap kemampuan mengenal angka 1 sampai 5 yang menggunakan media papan menjahit angka. Dengan demikian rumusan masalah yang ditemukan sudah terjawab bahwa media papan menjahit angka sangat efektif untuk mengetahui kemampuan siswa dalam kemampuan mengenal angka 1 sampai 5 pada siswa hambatan intelektual sedang kelas IV di SLB Bhakti Pertiwi Kalibaru.
Penerapan Metode An-Nashr dalam Pembelajaran Terjemah Al-Quran Siswa Madrasah Ibtidaiyah An-Nashr Wajak Kabupaten Malang
Authors: Fauzi Akhmad , Rofiq Aunur
Published: January 2024

Banyak sekali lembaga pendidikan yang menjadikan al-quran sebagai mata pelajaran pokok yang harus dipelajari bahkan sampai harus menghafal al-quran tersebut. Namun pada saat ini belum banyak berkembang metode pemahaman al-quran untuk orang islam yang notabene non-arab (kaum ajam), banyak dari mereka fasih membaca al-quran, mengetahui hukum tajwid serta makhorijul huruf dan tidak sedikit dari mereka yang sudah hafal seluruh isi dari al-quran. Akan tetapi mereka belum faham apa arti dan maksud dari ayat yang mereka baca dan hafal tersebut. Madrasah Ibtidaiyah An-Nashr merupakan madrasah yang menjadikan metode An-Nashr sebagai pelajaran pokok, metode An-Nashr sendiri merupakan metode terjemah al-quran yang mulai diterapkan pada tahun 2005, dan juga metode ini bisa diterapkan pada tingkat madrasah tsanawiyah maupun tingkat madrasah aliyah. Penelitian ini bertujuan untuk mengetahui (1) pelaksanaan metode An-Nashr siswa Madrasah Ibtidaiyah An-Nashr, (2) hasil belajar kognitif metode An-Nashr pada siswa Madrasah Ibtidaiyah An-Nashr. Penelitian ini menggunakan pendekatan kualitatif dengan jenis penelitiannya studi kasus. Teknik pengumpulan data berupa observasi, wawancara, dan dokumentasi. Teknik analisisnya menggunakan teori Miles dan Huberman, dan pengecekan keabsahan datanya menggunakan teknik ketekunan pengamat. Hasil dari penelitian ini adalah (1) pelaksanaan metode An-Nashr dalam pembelajaran terjemah al-quran siswa Madrasah Ibtidaiyah An-Nashr yaitu menggunakan pola 4-3-2-1, dengan penerapan meliputi (a) perencanaan, (b) materi, (c) metode, (d) alat pembelajaran, (e) penilaian, (f) langkah-langkah pembelajaran. (2) hasil belajar kognitif metode An-Nashr siswa Madrasah Ibtidaiyah An-Nashr, nilai rata-rata siswa Madrasah Ibtidaiyah An-Nashr yaitu rata-rata huruf B. Dengan indikator keberhasilan yaitu mampu menerjemah dengan terjemah per-kata dan mampu menerjemah per-ayat juz 30.
Integrated Dashboard for Training and Placement
Authors:   Department of Computer Engineering, SNJB’S K. B. J. College of Engineering, Chandwad (Maharashtra), India., Nikam Vaibhav Daulatrao , Mandole Rohit Ravindra ,   Department of Computer Engineering, SNJB’S K. B. J. College of Engineering, Chandwad (Maharashtra), India., Sonawane Suraj Uttam ,   Department of Computer Engineering, SNJB’S K. B. J. College of Engineering, Chandwad (Maharashtra), India, Pathade Tejas Ramkrishna ,   Department of Computer Engineering, SNJB’S K. B. J. College of Engineering, Chandwad (Maharashtra), India., Khivsara Prof. B. A. ,   Department of Computer Engineering, SNJB’S K. B. J. College of Engineering, Chandwad (Maharashtra), India.
Published: January 2024

The project titled "Integrated Dashboard for Training and Placement" is a student campus information system. That is a management system that is supported by a database. TPO has a prominent role in every college including most of them so far the work is done by hand. The goal is to automate the training and placement process in colleges This application reduces manual work and increases optimization, abstraction and security. This web application will help the students as well as the admin officers to carry out every activity in Campus Rentals. This application can be used to manage the student for training and placement cell of the college Placement related information. Students will be able to see the eligibility criteria based on their percentage upcoming placement drives and they can access technical and company specific questions. Is in it Facility to maintain student details and reduce manual work. Training and Placement Officer (TPO) is able to view information about the student and collect their resume and many add-on functionalities. This system can be accessed through a proper login.
A Critical Review of Research on Financial Risk Tolerance
Authors:   School of Commerce and Business Studies, Junior Research Fellow, Faculty of Commerce, Jiwaji University, Gwalior (M. P), India., Roy Prasenjit , Singh S. K. ,   School of Commerce and Business Studies, Dean, Faculty of Commerce, Jiwaji University, Gwalior 474011 (M.P), India.
Published: January 2024

This paper conferred the objective to conduct a critical review of research on Financial Risk Tolerance. A total of 58 research papers were reviewed and published between 2000 and 2022. This investigation has been split into three sections. Firstly, focused on various types of personality. Secondly, have to do with Six demographic variables, and the remaining with various objectives. Tables and graphs were used to demonstrate the basis of the year of publication, the belonging country, the types of data, the objectives of the research, and the statistical tool used. Findings show that more no. of research had been done during the last decade, and India shares the most no. of research papers. Nearly 75% of research is based on primary data. Grable’s 13-item questionnaire and 5-point Likert Scale are used often. Descriptive Statistics, Cronbach alpha, correlation, and regression are a few most common tools utilized in research papers.
CLINICAL PROFILE OF PATIENTS WITH UNCONTROLLED DIABETES: A PROSPECTIVE STUDY IN RURAL TERTIARY CARE HOSPITAL
Authors: Sharma Meenu , Chauhan Megha
Published: January 2024

Background: Type 2 diabetes mellitus (T2DM) is becoming more common due to lifestyle changes. Diabetes is expected
to be a major problem in India. The disease is becoming widespread in rural areas of India as well. To assess clinical Aim:
prole of T2DM in a rural tertiary care hospital. Hundred T2DM patients recei Methods: ving metformin were included in this study at
departments of Medicine, Dr RPGMC and Hospital, Tanda. Mean age of the patie Results: nts was 56.3 years. 32% were aged between 51-60
years. 56% were males, 58% were illiterate, 28% were smokers, 38% had family history, 60% were taking mixed diet, and 22% had duration of
diabetes more than 10 years. 36% of the patients also had hypertension. 66% were regular on treatment. In this study, only 30% had FBS levels
below 160 mg/dl while 86% had HbA1c between 7% and 8%. Conclusion: The T2DM patients shared concomitant conditions like hypertension.
Due to the irregularity of the medication, most of these patients were unable to regulate their HbA1c and blood sugar levels.
RANDOMIZED CONTROLLED TRIAL OF GABAPENTIN VERSUS PREGABALIN AS PREEMPTIVE OPIOID FREE ANALGESIA IN SPINE SURGERY
Authors: Joshi Miral , Shah Parth , Shah Bansari , Katara Upendra , Dhamsania Hemali
Published: January 2024

Introduction: Spine surgeries are associated with excruciating postoperative neurotic pain and requires opiod analgesics
perioperatively very often. Gabapentin and pregabalin has a well established role in neurotic pain. Hence we decided to
compatre their utility as preemptive analgesic when compared to conventional analgesic.we also wanted to explore the possibility of this two as a
part of multimodal opioid free analgesia. This was a randomized controlled t Methods: rial carried out at our institute from NOVEMBER 2022
TO NOVEMBER 2023 on 75 patients, with 25 Patients in each group. Patients were randomly divided in three groups. Group G (gabapentin) ,
group P (pregabalin) and Group C (multivitamin).All the patients were given tablet according to pre assigned group 1 hour prior to surgery.
Results: Time to requirement of rst dose of rescue analgesic in P group was 183 min and in G group was 136 min. In comparison to group C
group G and P had lower visual analogue scale (VAS) score, and it was statistically signicant. Total no of rescue analgesic required in 24 hours
was less in group G and P in comparison to group C . Mean VAS scores was lowest in pregabalin group in comparison to gabapentin. Total
NUMBER of rescue analgesia required in 24 hours was highest in group C and lowest in group P. Pregabalin and gabapentine Conclusions:
produce prolonged postoperative analgesia compared to conventional, pregabalin had better analgesic effect than gabapentin postoperative
period.
PERCEPTION OF CLINICAL RESEARCH AMONG HEALTHY VOLUNTEER STUDIES AND HUMAN CLINICAL PHARMACOLOGY-PHASE-I CLINICAL TRIALS
Authors: Khan Mohammad Nadeem , Kumar Ashok
Published: January 2024

Purpose Clinical research relies on data from patients and volunteers, yet the target sample size is often not achieved.
Here, we assessed the perception of clinical research among clinical trial participants to improve the recruitment process
for future studies. The main aim of early volunteer studies should be evaluate all pharmacological properties of the drug in man so as to maximize
its therapeutic impact. Having said this however, the objectives of volunteer studies must be seen in the general context of the complete
development of the drug. The problems must not be considered in isolation. Observation made during this early phase will certainly inuence the
design of later phases and indeed should even provoke further animal experiments. Before dealing with the design of early volunteer studies it is
necessary to consider who the clinical investigator (PI) should ideally be and to determine where exactly these volunteer studies should be
performed. Healthy volunteers who reported nancial motives had participated in more clinical trials. Consistent with great trust in medical staff
and government research institutions, little concern was expressed about the misuse of personal data during the trial.
A PROSPECTIVE STUDY OF GRADING THE COMPLEXITY OF PCNL PROCEDURES USING GUY'S STONE SCORE
Authors: Sadotra Ankush , Sankhwar S. N , Goel Apul , Singh Vishwajeet , Pal Singh Bhupendra , Kumar Manoj , Singh Vivek Kumar
Published: January 2024

Background: Kidney stones are formed in the urinary tract due to crystallization of chemical compounds in the urine.
PCNL is a technique used to remove certain stones in the kidney or upper ureter that are too large for other forms of stone
treatment such as ESWL or ureteroscopy. Objectives To determine the relationship between demographic information, procedural details, and
surgical outcome of percutaneous nephrolithotomy (PCNL) based on the GSS and its consequences. Methods A total of 200 renal stone patients
who underwent PCNL were examined and included in the study. PCNL was performed using conventional methods. Guy's Stone Score (GSS)
was determined urographically at CT. During the study, demographic data, preoperative and intraoperative ndings, and postoperative outcomes
were recorded, and nally the data of all parameters were compiled and compared with the different levels of Guy's Stone Score. Complications
were graded using the modied Clavien score. Results Mean stone burden, uoroscopy time (sec), operation time (min), hospital stay (days), and
number of punctures increased signicantly with increasing Guy grade. The residual stone, fever, postop. Hematuria, postoperative urine leakage
(< 12 hrs), hydrothorax and urosepsis complication were signicantly increased in the higher Guy grade. Conclusions The overall complication
rate was 35%. The higher the Guy's grade, the more punctures there were and the more complications occurred. The Guy's Stone score is a useful
tool for preoperative tool for counselling of patients because it reliably predicts the outcome of PCNL.
EFFECTIVENESS OF VIRTUAL MICROSCOPY IN COMPARISON TO CONVENTIONAL MICROSCOPY IN ENHANCING LEARNING OUTCOME OF PATHOLOGY STUDENTS
Authors: Khader Jasmine , Khader Jithin
Published: January 2024

This study aimed to enhance pathology teaching and learning for medical students by introducing virtual microscopy and
evaluating its impact on academic performance. 91 students of II MBBS were split into Groups A, B, and C. Group A used
conventional microscopy, Group B used virtual microscopy, and Group C used a combination. Pretest mean scores for Groups A, B, and C were
2.36 ± 1.615, 2.23 ± 1.454, and 0.81 ± 0.931, respectively. Post-test scores signicantly improved in Group A (4.82 ± 0.390), Group B (3.97 ±
0.482), and Group C (4.78 ± 0.553). Conventional microscopy yielded higher scores, attributed to specic and limited information besides skilled
tutoring. However, student feedback favored virtual microscopy for comprehensive learning. While manual microscopy remains effective with
skilled teaching, virtual microscopy complements traditional methods due to its user-friendly experience and positive student reception.
ADDRESSING POSTMENOPAUSAL OSTEOPOROSIS: THE ROLE OF ORAL MEDICATIONS
Authors: Duggal Ranjana , Ghani Ufaira , Sharma Vanita
Published: January 2024

A signicant proportion of postmenopausal women in India go through osteoporosis. Clinical evaluations and dualenergy X-ray absorptiometry (DXA) scans are frequently used to screen for this condition. When individuals are
identied as having an increased risk of fractures based on screening results, oral treatments are commonly suggested. After an osteoporosis
diagnosis, oral bisphosphonates such as alendronate, ibandronate, and risedronate are typically employed as the main methods to prevent
fractures.Selectiveestrogen receptor modulators, estrogen-containing medications, and other substances like tibolone that mimic the actions of
estrogen are all examples of hormonal therapy. Following a diagnosis, lifestyle changes including supplementation and exercise are utilized as a
supplemental form of treatment. These changes may help prevent osteoporosis. These treatments' main drawbacks are their side effects.
Treatment plans should be customized depending on the substantial risk factors that patients have shown,the side effects, and the clinical
outcome of the treatment. Hormone replacement therapies pose the most serious risk factors for choosing a medication since they increase the
risk of venous thrombosis, coronary artery disease, breast cancer, and uterine cancer. The most frequent side effect of bisphosphonates is
gastrointestinal pain, which can be lessened with careful dosage. These drugs have shown to be effective in preventing vertebral and nonvertebral fractures in post-menopausal women, while having side effects. Clinical judgment should be used to choose the best course of therapy
based on the goals and experiences of the patient after weighing the risk of fracture against the risk of adverse events related to each of the
regimens.
A RARE PRESENTATION OF NASAL SEPTAL SCHWANNOMA: CASE REPORT
Authors: Anil Jarandikar Apurva , L. Chaudhari Tanmay , Ingale Mayur , Rajashekhar Rashmi
Published: January 2024

Background: Schwannoma of nose and paranasal sinus is a rare presentation.It is a benign tumour of Schwann cells of
myelinated nerve sheaths. A 52 years old female presented to out-patient depart Case presentation: ment with gradually
progressive left nasal obstruction since6 months. On local examination, soft nasal mass occupying the left nasal cavity was seen.Endoscopic
excision of mass was done and sent for histopathological examination (HPE). Mass was attached to posterior part of nasal septum and was totally
excised by endoscopic approach. HPE report was spindle cell tumour which on immunohistochemistry came out to be nasal schwannoma. Patient
was treated successfully with functional endoscopic sinus surgery under general anaesthesia. Nasal septal schwannoma is rare entity Conclusion:
and it should be considered as a differential diagnosis in cases of benign nasal masses.