bluuebunny/crossref_metadata_2025 huggingface dataset:
Production and Utilization of Moodle-Based e-Learning to Enhance Higher-Order Thinking Skills with the STEM Approach
Authors: Restanti Mida Ayu , Hasnunidah Neni , Suyatna Agus , Abdurrahman Abdurrahman
Published: January 2024

This study aimed to develop a Moodle-based e-learning platform with a valid, practical, and effective STEM approach to enhance Higher-Order Thinking Skills (HOTS). The research methodology employed for development purposes was the ADDIE model, consisting of five distinct phases: Analysis, Design, Development, Implementation, and Evaluation. The selection of research subjects for the field trial was conducted through cluster random sampling, wherein experimental and control classes were chosen. The experimental class utilized a Moodle-based e-learning solution for instructional purposes, while the control class adhered to traditional learning methods. Data were collected using validated questionnaires and written tests. The findings indicated that the Moodle-based e-learning products with a STEM approach are effective in enhancing students’ higher-order thinking skills. This was evident from the average n-Gain gain falling in the "medium" category at 0.62 and an effect size also in the "medium" category at 0.43. Student responses to the Moodle-based e-learning were very positive. Based on the research findings, the researcher offers some recommendations. Teachers aiming to utilize this product could enhance its effectiveness by incorporating additional platforms into their learning activities and resources. Additionally, other researchers interested in advancing further studies can introduce problem-solving activities to stimulate higher-order thinking skills (HOTS) in everyday situations. In conclusion, the Moodle-based STEM e-learning product is effective in enhancing students' HOTS.
El inversor dual buck de inductor simple: control de voltaje y procedimiento para obtener su modelo matemático
Authors: Patarroyo-Gutierrez Luis David , Hernández Gómez Oscar Mauricio , Jiménez López Fabián Rolando
Published: January 2024

El presente artículo describe el procedimiento para obtener el modelo matemático para un convertidor DBI (Dual Buck Inverter) de 2 KW que puede ser usado en aplicaciones de energías renovables. Así mismo, se describen los modos de operación del inversor con las ecuaciones que modelan su comportamiento para cada uno de estos y, junto con las señales de activación de los MOSFET presentes en el inversor, se construye el modelo conmutado. Se muestra el procedimiento de linealización del modelo en un punto de operación, registrando los resultados de simulación en Matlab®/Simulink™ usando un controlador PID, realizando cambios en la carga y en el nivel de tensión DC de entrada para el modelo propuesto y para el circuito inversor haciendo uso de elementos discretos. La distorsión armónica total en la señal de tensión de salida es inferior al 0,73%, cumpliendo con el estándar IEEE 519.
Challenges and Solutions of Discipline in Contemporary Classroom Education
Authors:   Educational Sciences Department, UBB University Studies Center from Reșița, T. Vuia Square, No.1-4, Reșița, 320085, Romania, Ispas Cristina , Ispas Ana-Maria ,   Department of Psychology, UBB University Studies Center from Reșița, T. Vuia Square, No.1-4, Reșița, 320085, Romania
Published: January 2024

The concept of classroom discipline refers to the various techniques utilized by educators to regulate the conduct and dispositions of pupils throughout the educational experience, with the aim of promoting compliance with institutional standards and fostering a secure, structured, and stimulating milieu conducive to learning. This article investigates the current methodologies and obstacles encountered by modern educational institutions in effectively addressing classroom behavior management. This article examines the perspectives of aspiring and novice educators on the significance of discipline within the classroom setting. It underscores the criticality of effective communication and collaboration among educational institutions, families, and communities in fostering a conducive and inspiring learning atmosphere. This article examines the perspectives of students in the field of education sciences and novice teachers on the origins of inappropriate student behavior and its impact on the educational process within the school setting. Additionally, the article suggests effective strategies and techniques for fostering responsible and appropriate behavior in the classroom. The article underscores the significance of both initial and continuous professional development in effectively managing student behavior, as well as preventing and addressing incidents of school violence.
Feedback on Students’ Performance: Possible Ways of Enhancing Students’ Success with Formative Assessment
Authors:   Faculty of Psychology and Educational Sciences, Babes- Bolyai University , Cluj-Napoca, Romania, Muste Delia , Ivanidze Tamari ,   Education Academy,Vytautas Magnus University, Kaunas, Lithuania
Published: January 2024

Feedback has become as the main performance metric that’s why meaningful and thoughtful feedback is important for improving students' learning path. It is provided by teachers to close the students’ knowledge gap. Positive outcomes are determined by informative, goal-oriented and friendly delivered feedback. However, students and teachers lack knowledge about the role of feedback and its contribution in learners’ progress. This article delves the significance of feedback on students’ performance and its role for students’ enhanced learning. The paper presents different types of formative feedback and their effectiveness for students’ performance improvement. It also shows how effective feedback works in the classroom and strategic choices for feedback implementation. Feedback is presented as an essential tool for improving quality of teaching and education in general.
The Role of Negative Emotions in Climate Change Awareness Advertising
Authors:   Faculty of Psychology and Educational Sciences, Babeș-Bolyai University, Cluj Napoca, Romania, Chalkiadaki Sylvia Eirini , Vaida Sebastian ,   Faculty of Psychology and Educational Sciences, Babeș-Bolyai University, Cluj Napoca, Romania
Published: January 2024

The field of advertising has been increasingly using psychological concepts to push consumers towards buying and changing their attitudes about the product and even about the whole brand. Accordingly, using emotions as a tool for persuasion and raising behavioural intention should be discussed from a psychological point of view. Therefore, this paper aims to provide an extensive explanation and an experimental proposal for the relationship between three distinct negative emotions and behavioural intention in the context of video advertising. The main advertising concept that we have discussed is the awareness of advertising campaigns, specifically ones on the topic of climate change. In addition, to increase the specificity of the information presented, we analysed several emotions individually: fear, guilt and anger, and their potential of inducing behavioural intention. The three negative distinct emotions were chosen specifically because of the motivational factor that they include, if used in certain conditions, they induce a drive for action, a want for behavioural change - which is preferable in awareness campaigns. We have also discussed some technical details that can be considered important when creating emotional appeals - especially anger, fear or guilt inducing. This paper also offers future directions and represents a guideline for creating emotion inducing advertisements. On top of that, it represents proof that the field of advertising can benefit from research in the psychological field, and that publicity can be used not only as a means for persuading consumers, but also shifting behaviours towards sustainability.
First observation of the beetle Sericoderus lateralis consuming Cladosporium fulvum in a greenhouse tomato: potential for biological protection or risk to the crop?
Authors: Psota Václav , Bezděk Jan , Harvey Liam
Published: January 2024

For the first time, the mycophagous beetle Sericoderus lateralis (Gyllenhal, 1827) was documented feeding on tomato leaf mold ( Cladosporium fulvum Cooke, 1878) tissues. The phenomenon was observed during the years 2022 and 2023 in a hydroponic tomato greenhouse situated near the Czech-Polish border within the cadastre of Dolní Lutyně municipality in Czechia. Greenhouse and laboratory observations confirmed that adult and larvae feeding activity led to a reduction in tomato leaf mold lesions. In addition, there was a positive correlation between tomato leaf mold disease progression and increased populations of S. lateralis in the tomato crop. Petri dish observations confirmed egg laying occurred on a diet of tomato leaf mold. Further research is warranted to discern whether S. lateralis is a potential biological control agent for tomato leaf mold or if it acts to facilitate the spread of the disease by acting as a spore vector.
Determinants of Toeplitz–Hessenberg Matrices with Generalized Leonardo Number Entries
Authors: Goy Taras , Shattuck Mark
Published: January 2024

Let un
= un
(k) denote the generalized Leonardo number defined recursively by un
= un−

1 + un−

2 + k for n ≥ 2, where u
0 = u
1 = 1. Terms of the sequence un
(1) are referred to simply as Leonardo numbers. In this paper, we find expressions for the determinants of several Toeplitz–Hessenberg matrices having generalized Leonardo number entries. These results are obtained as special cases of more general formulas for the generating function of the corresponding sequence of determinants. Special attention is paid to the cases 1 ≤ k ≤ 7, where several connections are made to entries in the On-Line Encyclopedia of Integer Sequences. By Trudi’s formula, one obtains equivalent multi-sum identities involving sums of products of generalized Leonardo numbers. Finally, in the case k = 1, we also provide combinatorial proofs of the determinant formulas, where we make extensive use of sign-changing involutions on the related structures.
New Upper Bounds for the Weighted Chebyshev Functional
Authors: Bakula Milica Klaričić , Pečarić Josip
Published: January 2024

New upper bounds for the weighted Chebyshev functional under various conditions, including those of Steffensen type, are given. The obtained results are used to establish some new bounds for the Jensen functional.
Estimation of the Needed Regolith for Covering Lunar Habitat by Protective Layer
Authors: Konečný Petr , Katzer Jacek , Kobaka Janusz , Seweryn Karol
Published: January 2024

The article deals with estimation of the amount of regolith to be mined with respect to the preparation of lunar habitat. Estimation of the size of the pit is related to the overlay of regolith for habitat made of a composite concrete-like structure. The evaluation is based on the number of inhabitants, necessary floor area, and the considered structure that is made of three segments. The first segment is a linear vault with a half cylinder cross section ending with a half sphere on both sides of the vault. Elementary formulas for the computation of volume of cylinder and sphere are applied.
Derivations of the stress-strain relations for viscoanelastic media and the heat equation in irreversible thermodynamic with internal variables
Authors: Ciancio Vincenzo
Published: January 2024

By using a procedure of classical irreversible thermodynamics with internal variable (CIT-IV), some possible interactions among heat conduction and viscous-anelastic flows for rheological media are studied. In particular, we introduce as internal variables a second rank tensor

ε

α
β

(
1
)

\varepsilon _{\alpha \beta }^{(1)}

that is contribution to inelastic strain and a vector ξα
that influences the thermal transport phenomena and we derive the phenomenological equations for these variables in the anisotropic and isotropic cases. The stress-strain equations, the general flows and the temperature equation in visco-anelastic processes are obtained and when the medium is isotropic, we obtain that the total heat flux J
(q) can be split in two parts: a first contribution J
(0), governed by Fourier law, and a second contribution J
(1), obeying Maxwell-Cattaneo-Vernotte (M-C-V) equation.
A new approach to the Benjamin-Bona-Mahony equation via ultraspherical wavelets collocation method
Authors: Mulimani Mallanagoud , Srinivasa Kumbinarasaiah
Published: January 2024

In this paper, we develop a precise and efficient ultraspherical wavelet method for a famous Benjamin-Bona-Mahony (BBM) mathematical model. The suggested technique uses the collocation method and ultraspherical wavelets. The proposed scheme is applied to linear and nonlinear BBM equations to inspect the efficiency and accuracy of the proposed technique. The effectiveness of this practical approach is verified. Moreover, the method based on the ultraspherical wavelets is simple, accurate, fast, flexible, and convenient. The results are analyzed using tables and graphs and compared with other methods in literature. As we know, many partial differential equations (PDEs) don’t have exact solutions, and some semi-analytical methods work based on controlling parameters, but this is a controlling parameter-free technique. Also, it is pretty simple to implement and consumes less time to execute the programs. The recommended wavelet-based numerical approach is interesting, productive, and efficient. The proposed technique's convergence analysis is also presented through the theorem.
New results for generalized Hurwitz-Lerch Zeta functions using Laplace transform
Authors: Yağcı Oğuz , Şahin Recep , Nisar Kottakkaran Sooppy
Published: January 2024

Fractional Kinetic equations (FKEs) including a wide variety of special functions are widely and successfully applied in describing and solving many important problems of physics and astrophysics. In this work, the solutions of the FKEs of the generalized Hurwitz-Lerch Zeta function using the Laplace transform are derived and examined.
Comparing some plant communities in a region of Türkiye via fuzzy similarity
Authors: Bingöl Mesrur Ümit , Şafak Sanem Akdeniz , Akýn Ömer
Published: January 2024

In this study, the results obtained from forest vegetation via the research project on plant sociology which was conducted in the Black Sea region of Türkiye is evaluated with the help of a fuzzy similarity measures approach. Via this project, the plant sociology in an area which has not been studied in the Black Sea region of Türkiye is performed to investigate the plant communities and ecological and sociological relationships with each other. The similarity relations among the plant communities and relevés (sampling areas) which they covered are investigated. The issue of fuzzy similarity of sets and elements in sets is studied. According to this point of view, the fuzzy similarity among the plant communities and among the relevés is introduced. This joint study is carried out in a fuzzy environment, considering the classical results found in the project in question to be obtained in more detail for application. It is also understood that such studies can only be best performed with an interdisciplinary working group.
Aktualisasi Konsep Hredaya Kamala Madya dalam Penciptaan Tari Kamala Madya di Desa Tanjung Benoa, Bali
Authors: Ruspawati Ida Ayu Wimba
Published: January 2024

Penelitian ini bertujuan untuk mengungkap konsep filosofis Hredaya Kamala Madya dalam Kakawin Siwaratri Kalpa dan bagaimana konsep tersebut diintegrasikan dalam penciptaan tari berjudul Kamala Madya di Desa Tanjung Benoa, Bali. Melalui metode kualitatif dengan pendekatan analisis deskriptif, penelitian ini memanfaatkan wawancara mendalam dengan Ida Bagus Wiryanatha, seorang pakar sastra kakawin, untuk merumuskan cerita dan nilai-nilai penting dalam Kakawin Siwaratri Kalpa, termasuk konsep Hredaya Kamala Madya. Analisis juga dilakukan pada video rekaman karya tari Kamala Madya untuk mengungkap bagaimana konsep tersebut terwujud dalam gerakan, musik, kostum, dan elemen penting tari. Hasil penelitian menunjukkan bahwa konsep filosofis Hredaya Kamala Madya melambangkan abstraksi bunga teratai di hati manusia, merepresentasikan penyucian batin sebagai langkah penting menuju kedamaian hati. Penelitian ini mengungkap inspirasi yang mendasari penciptaan Tari Kamala Madya dan memperkaya nilai artistik melalui simbolisme filosofis dalam elemen artistik seperti gerak tari, musik, tata rias dan busana serta property utama tarian berupa kipas. Penelitian ini diharapkan mampu memberikan wawasan mendalam terhadap pemahaman Tari Kamala Madya khususnya dalam usaha memberdayakan masyarakat Desa Tanjung Benoa sebagai destinasi pariwisata pasca Covid-19. Kata kunci: Hredaya Kamala Madya, Kakawin Siwaratri Kalpa, Inspirasi, Penciptaan Tari, Tari Kamala Madya.
Introduction
Authors: Kleese Nick , Oziewicz Marek
Published: January 2024

In this Introduction, we review the key developments of 2023 when it comes to climate, including COP28. We reflect on what they mean for CLE and consider their implications for the urgent challenge of building a climate literate, ecological civilization.
Quality and Economic Advantage of Bread Wheat (Triticum Aestivum L.) Varieties Fertilized by Different Rates of Blended Fertilizer
Authors:   College Of Agriculture And Environmental Science, Shiferaw G Diriba
Published: January 2024

However, the research should be repeated in season and location to have a remarkable recommendation of the result for producers in the study area and the like.
Yield Stability of KDML105 Rice Introgression Lines, Developed Through Marker- Assisted Selection, Under Blast and Bacterial Blight Infection in Northeasthern Thailand
Authors:   Faculty Of Agriculture, Sanitchon Jirawat
Published: January 2024

Therefore, these three genotypes could provide a new improved rice varieties for BB resistance in Northeastern Thailand. Additionally, these results suggest that BB resistance is a prerequisite for future rice breeding in northeastern Thailand.
Genetic Analysis of Milk Production Traits in the Different Parities of Ethiopian Jersey Dairy Cows
Authors:   Ethiopian Institute Of Agricultural Research, Getahun Kefale
Published: January 2024

The objectives of this study were to estimate genetic and phenotypic parameters (variances, heritabilities and correlations) of milk production traits in the five consecutive parities
Transculturalidad crítica en los Seis ensayos en busca de nuestra expresión de Pedro Henríquez Ureña
Authors: Barrera Enderle Víctor
Published: January 2024

Written over two decades, the works that made up the book Seis ensayos en busca de nuestra expresión (published in Buenos Aires in 1928) deployed critical strategies to appropriate and resignify different metropolitan theoretical approaches (philological, historiographical and linguistic) for their application. to Latin American literature. Since the publication of Ensayos críticos, in 1905, Pedro Henríquez Ureña studied the formation and development of Latin American literature, both during his stay in Mexico as in Argentina. Henríquez Ureña thus became one of the first critics to propose a theoretical instrumental adapted to the particularities of the literary fields in Latin America. In this essay I propose to describe these strategies (including them in the concept of critical transculture) in Seis ensayos en busca de nuestra expresión   and its importance in the configuration of Latin American critical theory.
Agotamiento lírico: una lectura crítica de la poesía en el presente
Authors: Barreto David
Published: January 2024

Este artículo defiende la tesis de que nos encontramos en el medio de un cambio radical del paradigma lírico de la modernidad. A partir de un consideración crítica de la colección de poesía La flor del extérmino del escritor chileno Andrés Ajens y de una interpretación a contracorriente de la fórmula la edad de los poetas del filósofo francés Alain Badiou, este ensayo define los contornos de un agotamiento lírico que coincide con la declinación de los grandes relatos que estructuraban la modernidad. El propósito último es ofrecer pistas para dilucidar los nuevos rumbos que la poesía estaría tomando en el presente.
Vicens, María. Escritoras de entresiglos: un mapa trasatlántico. Autoría y redes literarias en la prensa argentina: 1870-1910. Universidad Nacional de Quilmes, 2020, pp. 374.
Authors: Pose Lucía
Published: January 2024

Review of Vicens, María. Escritoras de entresiglos: un mapa trasatlántico. Autoría y redes literarias en la prensa argentina: 1870-1910. Universidad Nacional de Quilmes, 2020, pp. 374.
INFLUENCE OF COW MANURE IN PLANTING MEDIA AGAINST THE GROWTH OF BANANA CORM OF BANANA KEPOK (Musa paradisiaca L.)
Authors: Renfiyeni Renfiyeni - , Andraini Helti , Elinda Friza
Published: January 2024

This study aims to obtain the composition of soil and cow dung that provides the best growth for kepok banana seedlings using banana corm.. This research was conducted in Sijunjung Regency. Efforts to provide banana seeds are carried out by utilizing banana corm which will produce 3 and 4 tillers per tuber and the production time is much faster than seeds from tillers. To get the best banana corm growth, a study was conducted using a mixed planting medium of soil and cow manure with five comparisons. The treatments were: A. Soil with cow manure 1:1 ratio, B. Soil with cow manure 2:1 ratio, C. Soil with cow manure 3:1 ratio, D. Soil with cow manure 4:1 ratio, E .Soil only. The treatment was repeated 5 times. The design used was a randomized block design and continued with DNMRT (Duncan New Multiple Range Test). Parameters observed were when shoots appeared, percentage of growth, shoot height, stem diameter, number of leaves, leaf length, root length and number of roots. The results showed that the best planting medium for planting banana kepok from corm was a medium consisting of soil and cow manure with a ratio of 1:1. This treatment gives the best results for all parameters.
Response of Growth Citronellal Grass (Cymbopogon nardus L) by Acaulospora sp Mycorrizha and Different Water Treatments in Ultisol
Authors: Herawati Netti
Published: January 2024

Citronella grass (Cymbopogon nardus L) is one of the essential oil-producing plants from the Gramineae group. This research was conducted in the Greenhouse of the Faculty of Agriculture, Andalas University, Padang from August 2017 until January 2018. This study aimed to determine the effect of Acaulospora sp and different water treatments on the growth of citronella grass in ultisol. A completely randomized design with two factors was used. The first factor was treatment with or without Acaulospora sp. The second factor was the water supply which consisted of three treatments (saturated, three quarters saturated and half saturated soil). Every treatment was repeated three times. Data were analyzed by analysis of variance using the F-test at the 5% level. Significant differences were further tested using Duncan’s New Multiple Range Test also at the 5% level. Treatment with Acaulospora sp and 75% saturated soil gave the best number of leaves and canopy to root ratio. Treatment with Acaulospora sp showed the best results for the number of tillers, stem diameter, root dry weight, and dry weight of the citronella plants. Acaulospora spp promote the growth of citronella grass.
The Diversity of Warehouse Pests on Areca Nuts in the West Sumatera, Indonesia
Authors: Ahad Mustopha , Nelly Novri , Makky Muhammmad
Published: January 2024

Areca nut is one of Indonesia’s leading export commodities that must adhere to certain phytosanitary requirements, including being pest-free. It is infested by several types of insect pests during the storage process. Therefore, this study aims to determine the diversity of warehouse pests that infest areca nuts. It was conducted using a survey method at three warehouses of large collectors and exporters of areca nut in the Padang city and the Padang Pariaman regency. The purposive sampling method was adopted to collect samples from three traders' warehouses. Furthermore, the nut was taken diagonally in a pile, namely the corner and center of 1 kg each, and repeated 4 times. The identification key was used to identify 15 insect types from 10 families and 3 orders. The Cryptolestes pusillus, C. ferugineus, and Carpophilus sp. were found with the highest number of individuals in each warehouse. The diversity index of the three warehouses is 1.78, 2.14, and 1.90 indicating a moderate level. Additionally, the similarity index between warehouses shows a high and very high level of species similarity.
THE EFFECT OF DOSING POTASH FERTILIZER AND COMPOST DOSES OF EMPTY BUNCHES OF OIL PALM (TKKS) ON THE GROWTH OF CITRONELLA PLANTS (Cymbopogon nardus L.)
Authors: Sodiq Abdul Hasyim
Published: January 2024

Citronella is a biopharmaceutical plant that has the main content of citronella and geraniol as raw materials in the manufacture of essential oils (citronella oil) which have high economic value. The production of citronella increases every year although the amount is still small when compared to the production of other biopharmaceutical plants. So it is necessary to increase the productivity of citronella plants with the use of the right dose of fertilizer. This study aims to determine the effect of potassium fertilizer dose and Compost Dose of Empty Palm Oil Bunches (EFB) on the growth of citronella (Cymbopogon nardus L.). The research was started in February-June 2022 at Balai Pengkajian Teknologi Pertanian (BPTP) Banten, Ciruas District, Serang Regency, Banten and the Laboratory of the Department of Agroecotechnology, Faculty of Agriculture, Sultan Ageng Tirtayasa University. This study used a Randomized Block Design (RBD) method which consisted of two factors, namely potassium fertilizer dose and Compost Dose of Empty Palm Oil Bunches (EFB). The first factor has 4 levels, 0 kg/ha potassium (K0), 15 kg/ha (K1), 30 kg/ha (K2) and 45 kg/ha (K3). The second factor has 4 levels, 0 tons/ha (T0), 20 tons/ha (T1), 30 tons/ha (T2) and 40 tons/ha (T3). There were 16 treatment combinations with 3 replications so 48 experimental units were obtained. Each experimental unit contained 2 polybags where each polybag contained 2 plants, so the total plants in the study were 192 plants. The results showed that the dose of potassium fertilizer 30 kg/ha gave the best results on plant height parameters at the age of 3, 4, 5, 6 WAP, the dose of potassium fertilizer 15 kg/ha gave the best results on the number of leaves aged 1 WAP. Dosage of 40 tons/ha of TKKS compost gave the best results on the number of leaves aged 5 and 6 WAP. There was no interaction between the dose of potassium fertilizer and the dose of TKKS compost on all parameters at the age of 1-12 WAP
The Plant Growth Analysis of Cucumis sativus L. Affected by Various Types of Organic Matter
Authors: Nasrudin Nasrudin , Muhammad Jihad
Published: January 2024

Organic matter can be used to increase the growth and metabolism activities of Cucumis sativus L. plants. Plant growth analysis is a simple method that can be used to determine physiological activities that support plant growth. The study aims to describe plant activities through plant growth analysis which is influenced by the use of organic matter. The research was conducted at the Experimental Garden, Faculty of Agriculture, Universitas Perjuangan Tasikmalaya. The study used a Completely Randomized Design - single factor (types of organic matters) i.e. control, rice straw compost, rice husk, leaf green compost, and cow manure. Four replications were used in this study. Based on our study, the application of organic matter significantly affects LAI 2 WAP, LAI 4 WAP, WC 2 WAP, WC 4 WAP, NAR, PGR, and HI. Cow manure, green leaf compost, and rice straw compost can increase LAI, while rice husk, rice straw, and green cow manure can increase WC. Furthermore, the application of rice husk and cow manure was able to increase in NAR, CGR, and HI. The increase NAR, CGR, and HI in this study was positively correlated with r= 0.622 and r= 0.284, respectively.
Effect of Tofu Liquid Waste and SP-36 on the Growth and Yield of Sweet Corn Plants (Zea mays saccharata Sturt).
Authors: SAFITRI ISNIN KURNIA
Published: January 2024

Tujuan dari penelitian ini untuk mengetahui pengaruh pemberian limbah cair tahu dan SP-36 terhadap pertumbuhan dan hasil tanaman jagung manis (Zea mays saccharata Sturt.). Penelitian ini dilakukan di lahan kebun melon bentiring kelompok tani milenial. Rancangan yang digunakan yaitu Rancangan Acak Kelompok Faktorial (RAKF) dengan 2 faktor 3 ulangan. Faktor pertama pemberian limbah cair tahu (T) : T0 (Kontrol), T1 (20%), T2 (40%) dan T3 (60%). Sedangkan faktor ke 2 Pupuk SP-36 (P) : P0 (Kontrol), P1 (2,8 gr/tanaman), P2 (4,2 gr/tanaman) dan P3 (5,6 gr/tanaman). Berdasarkan taraf yang dicobakan dari kedua faktor perlakuan tersebut, maka diperoleh 16 kombinasi perlakuan. Masing-masing kombinasi perlakuan diulang 3 kali dan diperoleh 16 kombinasi perlakuan dan diperoleh 48 satuan percobaan dan setiap percobaan terdiri dari 8 tanaman. Hasil penelitian ini menunjukkan bahwa interaksi antara perlakuan pemberian limbah cair tahu dan SP-36 berpengaruh tidak nyata terhadap pertumbuhan dan hasil tanaman jagung. Perlakuan limbah cair tahu (20%) berpengaruh nyata terhadap tinggi tanaman umur 35 HST dan berpengaruh sangat nyata jumlah daun umur 49 HST. Sedangkan perlakuan Pupuk SP-36 (2,8 gr/tanaman ) berpengaruh nyata terhadap jumlah daun dan berat basah tanaman.
Inventory of Chili Pests and Diseases in Kabandungan Sub-District, Sukabumi Regency
Authors: Ramadhan R. Arif Malik , Amalia Dhea Nurul , Permana Indra , Rahmatullah Panji
Published: January 2024

The decline in chili commodity production is influenced by various factors, including climate anomalies, less than optimal cultivation techniques, decreasing land quality, and pest attacks. Kabandungan District, as one of the chili production centers, can be used as a reference for studying the presence and intensity of chili pest attacks in general. Information about pest attacks can be used as a basis for control that can be applied in any location with similar characteristics. This research was conducted in Kabandungan District, Sukabumi Regency, West Java Province, Indonesia. This research was carried out from November 2021 to March 2022. The number of chili plants observed was 930 plants which were divided into 61 observation points spread across 6 villages, including Cianaga, Cihamerang, Cipeuteuy, Kabandungan, Mekarjaya, and Tugubandung Villages. The chili plants observed consisted of the local variety of cayenne pepper (CMR), cayenne red chili (CMR), curly red chili (CMK) variety TM 999, Darmais F1 large red chili (CMB), curly red chili (CMK), and chili curly red (CMK) OR Twist 42. The results of the study stated that the incidence of pest attacks was dominated by S. Litura attacks 26.40%, and Colletotrichum capsici 25.60% in the vegetative phase, as well as S. Litura 27.21%, and Gemini Virus 47.35% in the generative phase. S. litura attacks are reported to dominate all villages in Kabandungan District, while Mekarjaya Village is dominated by mites.
Effect of Biopesticide Application in Suppressing the Population of Onion Caterpillar Pests (Spodoptera exigua L) in Shallot Plants (Allium ascalonikum L)
Authors: HARAHAP SRIWINATY , HARAHAP RASMITA ADELINA
Published: January 2024

ABSTRAK

Bawang merah merupakan salah satu komoditas sayuran unggulan yang sejak lama telah diusahakan oleh petani secara intensif Komoditas ini juga merupakan sumber pendapatan yang memberikan kontribusi cukup tinggi terhadap perkembangan ekonomi wilayah, karena memiliki nilai ekonomi yang tinggi maka budidaya bawang merah telah menyebar di hampir semua provinsi di Indonesia. Jenis hama yang sering dijumpai pada tanaman bawang merah yaitu ulat bawang (Sexigua). Bawang merah merupakan inang utama bagi larva S.exigua. Kellilangan hasil akibat serangan hama ini dapat mencapai570/o karena terjadi sejak fase pertumbuhan awal sampai dengan fase pematangan umbi, bahkan bisa mengakibatkan gagal panen terutama di musim kernarau apabila pengendalian tidak dilakukan sesegera mungkin. Salah satu cara yang dapat digunakan untuk menekan pertumbuhan yaitu ulat bawang pada bawang merah dengan menggunakan pestisida nabati. Pestisida nabati mengandung senyawa aktifyang mampu mengganggu proses perkembangan ulat bawang Metode dalam penelitian ini adalah Rancangan Acak Kelompok Non Faktorial dengan masingmasing perlakuan DO ( kontrol), Dl (100 ml masing-masing daun Nimba, Serai dan Lengkuas/ liter air), D2 (200 ml masing-masing daun Nimba, Serai dan Lengkuas Iliter air), D3 (300 ml masing-masing daun Nimba, Serai dan Lengkuas [liter air) dan D4 (400 ml masing-masing daun Nimba, Serai dan Lengkuas Iliter air). Hasil penelitian menunjukkan bahwa perlakuan Biopestisida menunjukkan pengaruh yang nyata terhadap semua perlakuan yaitu intensitas serangan, persentase serangan, bobot umbi segar dan bobot umbi kering. Perlakuan terbaik terdapat pada D4.

Kata Kunci : Bawang merah, Biopestisida, Ulat bawang (Spodoptera exigua).
Optimizing the Growth of Tasikmalaya Honje (Etlingera elatior) Accession Seeds by Implementing Fermentation of Rabbit Urine and Coconut Water
Authors: Rosmala Arrin , Isnaeni Selvy , Yunita Roza
Published: January 2024

Organic matter has an important role besides providing macro and micro nutrients to plants, it can also improve environmental quality. The fermentation of rabbit urine and coconut water is expected to optimise the growth of honje seedlings. The aim of this study was to determine the concentration of fermented rabbit urine and coconut water that can optimise the growth of honje seedlings of Tasikmalaya accession. The study used a completely randomised design with seven treatments, namely A = control, B = 25% rabbit urine fermentation, C = 50% rabbit urine fermentation, D = 25% coconut water, E = 25% rabbit urine fermentation + 25% coconut water, F = 50% rabbit urine fermentation + 25% coconut water, G = 50% rabbit urine fermentation + 50% coconut water. The results showed that the treatments gave significantly different results on shoot emergence, seedling height, seedling diameter, and root crown ratio. Treatment G produced the fastest shoot emergence (6 days), and plant height (10.4 cm). Meanwhile, the widest seedling diameter was produced by treatment B (4.4cm), C (3.9 cm), and treatment G (3.9cm). Treatment C produced the highest root crown ratio of 0.5.
The EFFECT OF ADMINISTRATION OF PAITAN (Tithonia diversifolia) LIQUID EXTRACT ON THE GROWTH OF TISSUE CULTURAL PRODUCTS OF BARANGAN BANANA (Musa acuminata L.) SEEDLINGS
Authors: Elinda Friza , Miswar Zhikry Fadhillah , Sparta Andre , Meyuliana Aulia , Hendri John
Published: January 2024

Bananas (Musa spp.) are tropical plants that are very popular in Indonesia. Banana plants in the nursery require a planting medium that contains the nutrients the plants need. Tithonia is an annual weed that is suitable for use as a source of plant nutrients. This research aims to determine the effect of giving Tithonia liquid extract on the growth of Barangan banana seedlings resulting from tissue culture at the seedling stage and the best dose for using Tithonia liquid extract. This research was conducted at the Germplasm Nursery and Breeding Laboratory of the Tropical Fruit Plant Research Institute, Solok, West Sumatra, from September to December 2020. This research used the RAL method (Completely Randomized Design) with four treatments and six replications, in the form of 1) Without Tithonia extract, 2) Giving 1 ml of Tithonia extract, 3) Giving 2 ml of Tithonia extract, and 4) Giving 3 ml of Tithonia extract. The parameters observed were plant height, number of leaves, leaf length, leaf width, and stem diameter. Data was tested statistically. If calculated F > F table then it is tested further using the Duncan Multiple Range Test (DNMRT) with a level of 5%. The results of the research showed that giving Tithonia liquid extract had an effect on the growth of Barangan banana seedlings resulting from tissue culture. Significantly different results were obtained for the leaf width increase parameter. On the other hand, the results were not significantly different for other parameters such as plant height, number of leaves, leaf length and stem diameter. Giving 1 ml of Tithonia liquid extract was the best dose in this study.
Control of Root-knot Nematodes (Meloidogyne spp.) on Tomato (Lycopersicum esculentum Mill.) using Antagonist Fungi
Authors: Trizelia Trizelia Trizelia
Published: January 2024

Nematodes Meloidogyne spp. is the most important phytonematode in the world, especially in agriculture in tropical areas. The level of root damage to tomato plants caused by the nematode Meloidogyne spp. can reach 68.3%. In general, control of plant parasitic nematodes is still carried out using pesticides in the form of insecticides which can also be used as nematicides. Continuous use of chemicals to control nematodes can cause environmental pollution, resurgence and nematode resistance to chemicals. One alternative control is biological. One of the biological agents that can be used to control Meloidogyne nematodes is the endophytic fungus Beauveria bassiana and Trichoderma asperellum. The research aims to obtain the best isolates of endophytic fungi for controlling rootknot nematodes (Meloidogyne spp.). The isolates tested were 2 Beauveria bassiana isolates and 2 Trichoderma asperellum isolates. The results showed that the fungus isolate Beauveria bassiana isolate TD312 had a higher ability to control Meloidogyne spp on tomatoes.
Evaluation of Immediate and Delayed Fluoride Release of Alkasite Filling Materials with and without Bonding to Tooth Structure
Authors: A. Mohammed Hussein , H. Abd-alla Manal
Published: January 2024

The effectiveness of fluoride-releasing materials in preventing caries is proportional to the concentration and duration of the fluoride ions they release. The goal of this study was to evaluate the fluoride ion release of two alkasite materials; Cention Forte and Cention-N in comparison to Glass Ionomer Cement (GIC) R iva at two time intervals (24 hours and 7 days) when they are bonded and non-bonded to tooth structures. Methodology: 72 samples were fabricated from the three types of fluoride releasing materials. 36 samples were bonded to teeth specimens (three bonded groups) and another 36 samples were constructed within a silicon mould (three non-bonded groups), each group consisted of 12 samples. The bonded groups were: BCF using Cention Forte, BCN using Cention N and BGI using GIC Riva. The non-bonded groups were: NBCF using Cention Forte, NBCN using Cention N and NBGI using GIC Riva. 5ml of deionized water was used as the storage medi a for all the samples. Fluoride ions measurements were performed by fluoride ion selective electrode at two time intervals; after 24 hours (immediate) and after 7 days (delayed) for all the groups. The mean values of the data were analyzed statistically using one-way ANOVA, Post hoc Tukey's HSD test and paired t-test at p≤0.05. Results: For both bonded and non-bonded groups, at 24h the initial fluoride release of GIC Riva was significantly higher (p=0.00) than both Alkasite groups. While after 7 days, the highest amount of fluoride ion release was recorded for BCF with significant difference with BCN (p=0.016) and BGI (p=0.006), respecti vely. Similarly, NBCF released significantly higher amount of fluoride ions than NBCN and NBGI (p=0.00). The results of paired t-test showed that the mean values of fl uoride ions release was significantly increased from the first 24 to 7 days for all the groups (p≤0.05). Conclusion : The immediate fluoride ions release was highest from GIC Riva. While the delayed fluoride ions release was highest from both Alkasite filling materials for both the bonded and non-bonded groups.
Evaluation of Surface Hardness of Heat Cure Acrylic Resin Reinforce by Nano Al2O3 After Polishing with Different Materials
Authors: Hassan M Nihad , A.Jassem Wafaa
Published: January 2024

The goal of this research was to determine the surface hardness of heat cure acrylic resin reinforced with Nano Al2O3 after polishing with various materials. Materials and methods: - The 70 rectangular samples were made of a pink impact resistant thermoset acrylic (Vertex, Implacryl, The Netherlands) (65mm long x 10mm diameter x 3mm thick). Following polishing with each material (pumice stone, diamond suspension, colloidal silica), the surface roughness of each sample was determined using the Profilometer surface roughness instrument. The sample surface was glued to the profiler's horizontal base in a very flat position, and the stylus (the profiler's needle) was moved across each sample surface three times in three different directions over a distance of 1.7 mm. were separated into (7) groups were determined by the concentration of Nano powder, Group (A) Control without adding Nano filler of (Al2O3) (10) specimens, Group (B) Polishing with pumice Al2O3 (1%) (10) specimens, Group (C) Polishing with pumice Al2O3 (1.5 %) (10) specimens, Group (D) Polishing with Colloidal Al2O3 (1%) (10) specimens, Group (E) Polishing with Colloidal Al2O3 (1.5%) (10) specimens, Group (F) Polishing with Diamond Al2O3 (1%) (10) specimens, and Group (G) Polishing with Diamond Al2O3 (1.5%) (10) specimens. Data were statistically analyzed using statistical package for social science (SPSS), and the (ANOVA) test is used to determine whether the statistical hypothesis is true. Results: - For the hardness readings the higher mean value of hardness test found in group(D) (1%) polished by colloidal silica (82.74), then group (F)(1.5%)polished by colloidal(82.18), then group (F)(1%)polished by diamond( 81.12), then group(G)(1.5%)polished by diamond( 80.62),then group(C)(1.5%)polished with pumice(80.34),then group(B)(1%) polished with pumice(80.2),then at least group (A)control(80.18). Each of the three groups had a statistically significant difference with Highly sign. (P<0.01). Conclusions: -Specimens of acrylic reinforcement with adding 1.5% of Nano AL2O3 and polished with (colloidal silica, diamond suspension, and pumice, respectively) sequentially showed highly surface hardness then
Evaluation the Effect of Heat Treatment on Corrosion Resistance of Cobalt Chromium Alloys
Authors: H. Alwan Evan , M. Kanaan Sabiha
Published: January 2024

The purpose of present study is to evaluate and comparison the effect of different milling technique surface of CAD/CAM for milled Co-Cr alloy specimens.Material and Methods: The diagnostic divides 20 disc-shaped specimens into 2 main groups, each consisting of 10 specimens for Co/Cr alloys according to their construction, the material used in hard milling and soft milling. All samples for further examination were prepared as drilled discs (diameter 15 mm, height 3 mm) whose surfaces were then finished and polishing with a diamond polisher. Scanning electron microscopy (SEM) images with energy-dispersive beam spectroscopy (EDS) were acquired for one sample in each set to assess the surface topography of the metal framework. All samples were degreased, and steam cleaned samples and heat treated in accordance with the complete firing procedure. Then scanning electron microscopy (SEM) after heating. Samples prepared in the lab for electrochemical corrosion testing were polarized and corroded in accordance with their electrical potential. Results were recorded using Levenes test and anova, with appropriate data analyzed for differences between groups. Results: The results of this study presented that the Descriptive statistics for corrosion test (mmpy) for all experimental groups revealed that the hard milling group mean was the lowest among all groups of the study is recorded (0005), followed, Group soft milling (.0071). The data were statistically analyzed using Welch’s ANOVA and Levene’s test which revealed highly significant differences (p<0.01) among groups. Conclusion: Corrosion resistance decreases in the following order: soft metal milling > hard metal milling, according to the obtained corrosion parameter values.
Fiber-Reinforced Composites in Operative Dentistry (A Literature Review)
Authors: Wissam Abdulamir Shahed , A. Majeed Manhal
Published: January 2024

Fiber-based composite materials have gotten a lot of interest because of their strength, toughness, corrosion resistance, and lightweight.By functionally modifying the fiber components, fiber-based composite materials can preserve their original qualities while enhancing or overcoming the drawbacks of any single material.Composites constructed from modified fibers are highly suited for usage in a range of industries, including aerospace, high-rise construction, bridge and highway building, and maritime infrastructure, because of their excellent mechanical qualities, impact resistance, wear resistance, and fire resistance.Offering a solid scientific basis for the synthesis of fiber-based composites and their practical applications is the aim of this research.
Serum and Salivary Ferritin Level in Relation to Iron Deficiency Patient with Recurrent Aphthous Stomatitis
Authors: Majid Al-Hamdani Ghaith , Sabri Yas Layla
Published: January 2024

Background: Rec urrent aphthous stomatitis (RAS) is one of the most widespread disorders affecting the oral mucosa, with a prevalence of 50–66%. This study investigated the serum and salivary levels of ferritin between participants with recurrent aphthous ulcers and healthy. Methods: A total of 75 individuals participated in the research separated into three groups, clinically healthy control group (n=25), iron deficiency anemi c patient with recurrent aphthous stomatitis (n=25), and iron deficiency anemic patient without recurrent aphthous stomatitis (n=25). The enzyme-linked immunosorbent assay measured the serum and salivary ferritin levels. Result: the serum and salivary levels of ferritin were significantly lower (p<0.05) in anemic groups compared to healthy controls.in the salivary ferritin, there was a statistically significant difference between anemic patients without aphthous ulcer and anemic with aphthous ulcer (p=0.015), while in the serum ferritin, there was non-significant difference. Conclusion: The severity of ferritin deficiency paly as a cofactor for the development and recurrence of recurrent aphthous stomatitis.
Surface Treatment of Indirect Restorations
Authors: Jabbar Jassim Shahad , A. Majeed Manhal
Published: January 2024

Background: All ceramic CAD/CAM materials require surface treatment protocols varying from one type to another according to their chemical composition, including hydrofluoric acid etching, sandblasting, silica coating, laser etching, and non-thermal plasma treatment. This review's objective to analyze and bring up-to-date data about the surface treatment of ceramics.Data: The review just searched electronic publications of papers. Websites "Google Scholar" and "PubMed" were utilized as sources for performing data searches using the following keywords: Surface modification, plasma surface treatment, indirect restoration, ceramics The original papers and clinical investigations that were published between the years 2006 to March 2023 that were the most relevant to the subject at hand were chosen.Conclusion: A variety of surface treatment methods have been proposed to enhance the bonding of restorative materials to resin cement and provide micromechanical retention by altering the restoration's surface mechanically by increasing the degree of roughness or physico/chemically by activating the surface. Hydrophloric acid etch is a golden standard for the surface treatment of feldspathic and lithium disilicate ceramics, the APC concept for zirconia, and hydrofluoric acid or sandblast surface treatment for resin nano-ceramic. A new approach used for surface treatment is plasma treatment, which is really promising in dentistry.