bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of Beverage Solutions on Flexural Strength of PEEK CAD –CAM, 3D Printing Denture Base and Heat Cure Acrylic Resin Denture Base Materials
Authors: Muwafaq Fadhil Noor , Zuhair Mohammed Nada
Published: January 2024

This research was to evaluate the effect of distilled water (D.W.), tea, coffee, and cola on flexural strength of PEEK CAD-CAM, 3D printing and heat cure acrylic resin denture base at different durations (6, 12and 24 days). Material used in this research are PEEK, 3D printing and Heat cure acrylic resin with dimension (64 × 10 × 3.3 ±0.2 mm, ISO 20795- 1:201320) for each tested material. Total number of samples are n= (195) samples, Control samples n=15, experimental samples n=180.The control samples were non immersed in beverage media. The experimental samples were immersed in beverage media (distilled water, tea, coffee, and cola) for evaluating the flexural strength at different time which are (6, 12 and 24 days), then all collecting data were statically analyzed by spss version 25, by means of Descriptive statistics, analysis of Variance (ANOVA) and Duncan multiple range tests at p ≤ 0.05. The beverage solutions had been non significantly decreased the flexural strength and this decreasing worst as the immer sion periods increased, the most decreasing in flexural strength o f PEEK denture base was achieved in 24 immersion days in cola (252.0960 MPa ±5.19825) followed by coffee (253.4360 MPa ± 6.60975) followed by tea(253.7780 MPa ± 6.44697) followed by distilled water (254.1420 MPa ±7.41318) as comparing with control(260.2420MPa ±5.08412), the most decreasing in flexur al strength of 3D printing denture base was achieved in 24 immersion days in cola (103.1680 MPa ±12.26532) followed by coffee (105.4360 MPa ±12.36951) followed by tea (10 7.4530MPa ±11.47399) followed by distilled water (109.1320 MPa ±11.66156) as comparing with control(119.7140 MPa ± 12.25421), the most decreasing in flexural strength of heat cure acrylic resin denture base was achieved in 24 immersion days in cola (118.5640MPa ±13.06764) follow ed by coffee (122.3640MPa ± 9.78213) followed by tea( 123.5600MPa ±14.05144) followed by distilled water (126.3620 MPa ± 11.35254) as comparing with control (134.6420 MPa ± 9.79330) at p ≤ 0.05. All beverage media had been negatively aff ected the flexural strength of all experimental materials and as t he immersion periods increased the affect became worst. The aggressive effect was in cola followed by coffee followed by tea and the least effect was in D.W. beverage media. The worst immersion period was 24 then 12 and 6 days. for all tests use but this affect was non significantly.
Student’s Environmental Literacy Profile SMPN 1 Pekalongan
Authors: Ikasari Dewi  , Fenny Roshayanti  , Endah Rita Sulistya Dewi
Published: January 2024

Education is one effort to overcome environmental problems. This effort needs to start by knowing the profile of students. This research aims to determine the literacy profile of students at SMP N 1 Pekalongan. This research is a type of qualitative descriptive research. The sample in this study was 122 students from class VII. This research indicator refers to NELA, an environmental literacy assessment project implemented in the United States. The data collection technique is through tests using the Middle School Environmental Literacy Survey (MSELS). The test includes four indicators, namely: ecological knowledge, environmental problem-solving skills, attitudes and concern for the environment, and environmentally responsible behavior. Research data was analyzed descriptively based on achievement value criteria. The results of the research show that the environmental literacy level of students at SMP N 1 Pekalongan is 57.32, which is categorized as medium. The ecological knowledge indicator is 50.24 (fair), environmental problem-solving skills is 43.77 (fair), attitude and concern for the environment is 66.25 (good) and environmentally responsible behavior is 69.04 (good). Efforts need to be made so that students' environmental literacy at SMP N 1 Pekalongan in each indicator reaches the outstanding category.
Morphological Characters of Plant Species of the Zingiberaceae Tribe in Joben Resort Gunung Rinjani National Park, East Lombok
Authors: Erika Wulan Milenia  , Mulyaningsih Tri , Sukiman
Published: January 2024

Zingiberaceae is a family of aromatic herbaceous plants, pseudostem, and rhizomes. Members of this species are found in the low-high lands (2000 meters above sea level), in areas with very high rainfall, and in humid places. Resort Joben is located in the south of Mount Rinjani so the water source is quite abundant and the humid forest conditions are a place to grow various species of Zingiberaceae. This study aims to determine the species and distribution of Zingiberaceae in the Joben Resort, Rinjani Mount National Park, East Lombok. Sampling used the cruising method with five cruising lines, each line has a wide range of 20 meters.    Morphological characters identify using the reference book Vascular Plant Systematics, and the kinship relationship dendrogram was created using past 4.09 software. Samples were collected and documented as herbarium, then identified their morphological characters and species. The results of the study found six species of Zingiberaceae which belong to three sub-family, namely Zingiberoideae: Curcuma zanthorrhiza and Hedychium coronarium; Alpinioideae: Amomum dealbatum, Etlingera spinulosa and Etlingera rubroloba, and Costoideae: Costus spiralis.
Arbuscula Mycorrhizal Fungi on The Rhizosphere Three in The Ex-Sand Mine at Cipancur-Kuningan West Java
Authors: Ika Karyaningsih  , Redi  , Nina Herlina  , Desti Siti Alfiyah
Published: January 2024

Sand and stone mining activities in Kuningan Regency cause damage to soil and environmental ecosystems, so reclamation and revegetation are carried out. The purpose of this study is to determine the existence of indigenous / local Arbuscular Mycorrhizal Fungi (FMA) found in the rhizozofer stands of Sengon (Paraserianthes falcataria) and Acacia (Acacia mangium) which are revegetation plants on the land of former sand and stone mines Cipancur village, Kalimanggis district, Kuningan regency. Sampling using the composite sampling method, FMA isolation technique using the wet pour method is then continued with the centrifugation technique and root colonization observation technique using the root staining technique (staining). The temperature of the ex-mining soil ranges from 28C – 29C, the soil pH is 5.5 including acidic, the soil moisture varies between wet, medium (slightly wet) and dry (dry) but during the rainy season the soil will become wet and even flooded. The results showed that there were 5 genera, it are Acaulospora, Glomus, Gigaspora, Sclerocytis and Scutellospora. The dominant genus is Glomus. The highest spore density was found in Sengon stands with 1,157 spores per 50 grams of soil. The highest percentage of AMF infection was at the root of Sengon stands at 69% from the ex-sand mining area.
Impactos da pandemia da Covid-19 na saúde mental dos enfermeiros
Authors: Rodrigues Lara Caroliny Soares da Silva , Carvalho Neto Esmeraldo Pereira de , Oliveira Letycia Gabrielly de Porto , Amorim Ludmila Borges Santos , Tavares Viviane Rodrigues , Monini Juliana Barbosa Magalhães , Passos Xisto Senna , Nunes Priscilla dos Santos Junqueira
Published: January 2024

Objetivo: Analisar as principais consequências causadas na saúde mental dos profissionais de enfermagem no enfrentamento da Covid–19. Métodos: Revisão integrativa, seguindo as recomendações do PRISMA, a estratégia PECo, utilizando as seguintes bases de dados: Biblioteca Virtual em Saúde (BVS), Scientific Eletronic Library Online (SciELO), Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) e National Center for Biotecnology Information (NCBI). Foi selecionado os descritores “infecções por coronavirus”, “Covid-19”, “saúde mental”, “enfermagem” e “enfermeiros”, que posteriormente foram mesclados com os booleanos “AND” e “OR”. Foram incluídas 13 publicações, nas quais foram discutidas a partir das categorias: 1) As consequências psicofísicas e os fatores que podem ter comprometido a saúde mental dos profissionais ocasionados da pandemia; 2) As possíveis soluções para a promoção e prevenção da saúde mental do enfermeiro na assistência. Resultados: Os principais achados nos artigos referentes a categoria 1 foram: estresse, ansiedade, depressão, isolamento forçado, falta de EPI, intensa e constante responsabilidade; na 2 as possíveis soluções encontradas foram: autocuidado, educação continuada, intervenção psicológica, relação familiar, resiliência, suporte das políticas governamentais e a valorização profissional. Considerações finais: Os achados constataram fatores e consequências prejudiciais prevalentes desse período, evidenciando o aumento do sofrimento mental dos profissionais enfermeiros.
Demonstration exam as a form of final certification: the NEFU experience
Authors: Nikulina A. A.
Published: January 2024

The article discusses various theoretical and empirical methods used in research, including the analysis of the regulatory framework, conducting expert assessment and statistical processing of results, using descriptive examination methods, theoretical and methodological features of organizing and conducting demonstration exams. The article presents the experience and results of conducting exams on in-demand competencies; students have the opportunity to demonstrate their skills in specific situations and show how ready they are for professional activity. The general purpose of such examinations is to assess students’ readiness for work, where the key is not only the presence of basic knowledge, but also the ability to apply it in practical activities. The pilot testing took place in 2018, and in 2021 the NEFU introduced competency exams as the final certification of students and a mechanism for organizing educational activities of the university. The introduction of the exam into the main professional educational programs determines the degree of formation of professional skills and abilities by conducting an independent assessment of practical tasks performed by the student, performed in real time and simulating professional activity. The exam results determine the level of development of competencies of future specialists. 2022-2023 participation in the Future Skills project, implementation of tools for developing skills of the future. The role of the Future Skills University project in the qualitative transformation of the training system and mobile response to new technological structures, as well as new needs of the labor market.
Place of elective disciplines in the formation of professional and universal competences of Master’s students of the program “Russian language and Russian culture in the aspect of Russian as a foreign language”
Authors: Popova T. I.
Published: January 2024

Elective disciplines are one of the means of formation of universal and professional competences in Master’s program. Taking into account that elective disciplines are compulsory disciplines of choice, and they are included in the variable part of the Competence-oriented curriculum of the main educational program of higher education in Master’s degree, their role in the formation of universal and professional competences increases and requires a systematic approach to the modeling of the training program, which determines the relevance of the conducted research. The purpose of the article is to analyze the ways of formation of professional and universal competences of students with the help of elective disciplines in the field of linguistics in the conditions of multicultural education. The article summarizes the experience of the department of Russian as a foreign language and its teaching methods in the joint training of Russian and foreign students in the Master’s program «Russian language and Russian culture in the aspect of RCT» (Linguistics). The methods of theoretical analysis, synthesis, interpretation, generalization were used. The main results: the system of elective disciplines should correlate with the disciplines of the basic part of the program and represent a unified whole; the disciplines of the basic and variative parts of the program are developed in accordance with the three scientific directions of research in graduate qualification works of master’s students, namely – text research, linguistic and cultural research and functional-semantic research; elective disciplines are combined into three blocks in accordance to the directions of research of master’s students. The article presents the main themes and problems of electives, as well as the forms of interaction between Russian and foreign students in the course of project assignments in electives. The conclusion is made that when modeling the program it is necessary to take into account the possibilities of multicultural learning for the formation of professional and universal competencies.
Radical strain-release photocatalysis for the synthesis of azetidines
Authors: Rodríguez Ricardo , Corti Vasco , Rizzo Lorenzo , Visentini Stefano , Bortolus Marco , Natali Mirco , Pelosi Giorgio , Costa Paolo , Dell'Amico Luca , Amati Agnese
Published: January 2024

The increasing popularity of four-member rings in drug discovery programs has vastly widen the research in synthetic chemistry, guiding the community to progress and reinvent old strategies for their crafting. Recently, the strain-release concept has been effectively used to build complex architectures. However, in contrast to the tens of described strategies accessing small carbocyclic derivatives, azetidine synthesis remains severely underdeveloped. Here, we report a mild visible-light-driven method to access densely functionalised azetidines by subjecting azabicyclo[1.1.0]butanes (ABBs) to radical strain-release (RSR) photocatalysis. We investigated the mechanism of this process using a combination of spectroscopic and optical techniques, and density functional theory (DFT) calculations. The chemistry is orchestrated by the activity of a novel organic photosensitiser, that governs the key energy-transfer process with diverse types of sulfonylimine precursors. The formed radical intermediates are intercepted by the ABB through an RSR process, leading access to azetidines in high chemical yields in a single operation. The power and generality of this photocatalytic method is demonstrated for various azetidine targets, including derivatives of Celecoxib and Naproxen.
Multi-Component Liquid-Infused Systems: A New Approach to Functional Coatings
Authors: Applebee Zachary , Howell Caitlin
Published: January 2024

Antifouling liquid-infused surfaces have generated interest in multiple fields due to their diverse applications in industry and medicine. In nearly all reports to date, the liquid component consists of only one chemical species. However, unlike traditional solid surfaces, the unique nature of liquid surfaces holds the potential for synergistic and even adaptive functionality simply by including additional elements in the liquid coating. In this work, we explore the concept of multi-component liquid-infused systems, in which the coating liquid consists of a primary liquid and a secondary component or components that provide additional functionality. For ease of understanding, we categorize recently reported multi-component liquid-infused surfaces according to the size of the secondary components: molecular scale, in which the secondary components are molecules; nanoscale, in which they are nanoparticles or their equivalent; and microscale, in which the additional components are micrometer size or above. We present examples at each scale, showing how introducing a secondary element into the liquid can result in synergistic effects, such as maintaining a pristine surface while actively modifying the surrounding environment, which are difficult to achieve in other surface treatments. The review highlights the diversity of fabrication methods and provides perspectives on future research directions. Introducing secondary components into the liquid matrix of liquid-infused surfaces is a promising strategy with significant potential to create a new class of multifunctional materials.
AUTHORITY AND RESPONSIBILITY CAN FIX ACCOUNTABILITY OF SAID WORK IN ORGANIZATION
Authors: Hakeem Khan Adil
Published: January 2024

Authority and Responsibility go hand in hand in the Organization. Authority refers to Command or Control over things. In simple words Authority is Power. Responsibility refers to responsibility or duty for that work. Accountability is answerability or responsibility of the duty. Without delegation of Authority, a manager cannot assign work to the subordinate or staff and convince them to do the work. An individual requires to be answerable for any work.
Chromatin targeting of the RNF12/RLIM E3 ubiquitin ligase controls transcriptional responses
Authors: Espejo-Serrano Carmen , Aitken Catriona , Tan Beatrice F , May Danielle G , Chrisopulos Rachel J , Roux Kyle J , Demmers Jeroen AA , Mackintosh Samuel G , Gribnau Joost , Bustos Francisco , Gontan Cristina , Findlay Greg M
Published: January 2024

Protein ubiquitylation regulates key biological processes including transcription. This is exemplified by the E3 ubiquitin ligase RNF12/RLIM, which controls developmental gene expression by ubiquitylating the REX1 transcription factor and is mutated in an X-linked intellectual disability disorder. However, the precise mechanisms by which ubiquitylation drives specific transcriptional responses are not known. Here, we show that RNF12 is recruited to specific genomic locations via a consensus sequence motif, which enables co-localisation with REX1 substrate at gene promoters. Surprisingly, RNF12 chromatin recruitment is achieved via a non-catalytic basic region and comprises a previously unappreciated N-terminal autoinhibitory mechanism. Furthermore, RNF12 chromatin targeting is critical for REX1 ubiquitylation and downstream RNF12-dependent gene regulation. Our results demonstrate a key role for chromatin in regulation of the RNF12-REX1 axis and provide insight into mechanisms by which protein ubiquitylation enables programming of gene expression.
E. hellemSer/Thr protein phosphatase PP1 targets the DC MAPK pathway and impairs immune functions
Authors: Bao Jialing , Tang Yunlin , Chen Yebo , Jin Jiangyan , Wang Xue , An Guozhen , Cao Lu , Zhang Huarui , Cheng Gong , Pan Guoqing , Zhou Zeyang
Published: January 2024

Microsporidia are difficult to be completely eliminated once infected, and the persistence disrupts host cell functions. Here in this study, we aimed to elucidate the impairing effects and consequences of microsporidia on host DCs.Enterocytozoon hellem, one of the most commonly diagnosed zoonotic microsporidia species, was applied. In vivo models demonstrated thatE. hellem-infected mice were more susceptible to further pathogenic challenges, and DCs were identified as the most affected groups of cells. In vitro assays revealed thatE. helleminfection impaired DCs’ immune functions, reflected by down-regulated cytokine expressions, lower extent of maturation, phagocytosis ability, and antigen presentations.E. helleminfection also detained DCs’ potencies to prime and stimulate T cells; therefore, host immunities were disrupted. We found thatE. hellemSer/Thr protein phosphatase PP1 directly interacts with host p38α (MAPK14) to manipulate the p38α(MAPK14)/NFAT5 axis of the MAPK pathway. Our study is the first to elucidate the molecular mechanisms of the impairing effects of microsporidia on host DCs’ immune functions. The emergence of microsporidiosis may be of great threat to public health.
QSAR of Lipid-Coated Virus Inhibition by Fatty Acids and Monoglycerides Using Electropological Descriptors
Authors: Sumera Florentino
Published: January 2024

E-State QSAR models were developed for the inhibition of a lipid-coated virus with a set of 19 fatty acids (FA) and their monoglycerides (MG). The FA and MG were also divided into two subsets to improve correlations, the saturated (n = 12) and the unsaturated set (n = 7). QSAR of the sets yielded better correlation statistics; the saturated FA and MG gave r2 = 0.87, s = 0.26  while the QSAR of the unsaturated FA and MG gave r2 = 0.9999, s = 0.0041. The combined set model however yielded only r2 = 0.81, s = 0.32. Statistically satisfactory four and five variable models for the saturated and the unsaturated respectively and three variable model for the combined set FA and MG were developed. Structure interpretation is given for each variable emphasizing their effects on the resulting viral inhibition (pIC values). A leave-one-out method (LOO) was applied to investigate the predictive quality of each of the QSAR equation. This predictive quality of the multiple regression equation will be useful in the prediction of new potential antiviral compounds against lipid-coated virus. This paper hopes that the study could also be applied to SARS-CoV-2 virus, which is also a lipid-coated virus.
Effect of Chemistry Laboratory Alternative Work (CLAW) on Students Cognitive Skills and Self-efficacy in Chemistry
Authors: Panergayo Albert Andry , Marabe Anne Tricia , Magadia Ma. Chereza
Published: January 2024

The educational shift in instructional delivery from conventional settings to flexible learning systems such as online learning and blended learning affected the conduct of laboratory investigation in science classrooms. This study utilized Chemistry Laboratory Alternatives Work (CLAW) as a home-based laboratory to provide alternative learning method of conducting laboratory activities in chemistry. Furthermore, this study investigated the impact of using (CLAW) in enhancing the cognitive skills (remembering, applying, comprehension, applying and analysis) and Chemistry self-efficacy (affective, psychomotor, and everyday application) of the students. The study employed a one group pretest-posttest design to collect and interpret the data. The participants were 30 senior high school students in a public school in Laguna, Philippines. The expert-validated instruments, Acid and Base Achievements Test (ABAT) and Chemistry Self-efficacy Scale (CSS), were administered before and after 8 sessions of performing the CLAW.  Findings revealed that studentsâ€™ cognitive skills and self-efficacy in chemistry significantly improved based on p-value (p<0.05) at 95% confidence interval. This supports CLAW as an effective tool for fostering studentsâ€™ cognitive skills and self-efficacy in Chemistry. It shows that CLAW provides and active learning environment that fosters multi-sensory experience and self-regulated learning towards enhancing cognitive and self-efficacy skills. This study suggests adapting home-based learning activities to create more learning opportunities for the students in a hybrid learning set-up and to encourage students to engage in independent learning.
Development and Rasch Analysis of the Prior Knowledge of Chemistry Concepts Test for Pre-medical Students in the Philippines
Authors: Barcelo Jonathan
Published: January 2024

Chemistry concepts are embedded in several contexts that are related to the future professional roles of pre-medical students. In the current academic landscape of pre-medical programs, an objective measurement of prior knowledge of chemistry concepts is necessary to promote students’ academic success. To address this issue, this study aimed to develop and validate the Prior Knowledge of Chemistry Concepts Test. This multiple-choice research instrument is designed to measure pre-medical students’ knowledge of essential chemistry concepts from pre-requisite chemistry courses in pre-medical programs in the Philippines. The final item pool, consisting of 26 general chemistry concepts and 21 general organic chemistry concepts was administered to 470 college students from four tertiary institutions in the Philippines. Item content validity indices (I-CVI) and kappa statistics guided initial revisions, while dichotomous Rasch analysis was utilized to determine the psychometric properties of the research instrument. The analysis provided evidence of adequate person and item reliability, item fit, local independence, and unidimensionality, although some items may be omitted in subsequent iterations. The application of the research instrument to assessment and evaluation was elaborated using the student ability and item difficulty logits along the person-item map. Suggestions for the improvement of the research instrument were also discussed.
Integrated differential power processing converters for PV systems
Authors: E. Vargil Kumar , R. Koti Babu
Published: January 2024

Nowadays the growth of Module Integrated Converters (MIC) concept is increasing. This concept was developed for PV applications to improve the efficiency of the converters. In this paper we propose a submodule MPP tracking algorithm to track the maximum power from the partially shaded cells. Generally, PV module have three submodules. Each submodule is formed by series connection of two strings. Here we take a different P&O algorithm for each submodule to track maximum power from the all three submodules. Each submodule will have their own DC-DC converter. In DC stage, DC-DC converters are connected in three configurations to serve sufficient energy to inverter for single phase grid connected systems.
How do New Zealand Scientists perceive the benefits and limitation of Citizen Science?
Authors: Carson Sally , Rock Jenny
Published: January 2024

Public engagement with science in New Zealand adopted a more participatory approach with the 2014 launch of the Strategic Plan for Science in Society, joining the groundswell of citizen science research seen internationally. This study interrogates the views of scientists on the benefits and limitations of citizen science (CS) before and several years after the strategy was launched. Three groups of scientists were compared: NZ marine scientists with an international group of marine scientists around the time of launch, and NZ marine scientists four years later. At initial comparison NZ and international scientists held largely similar views on the benefits and limitations of CS, with only a few exceptions. Awareness of and involvement in CS projects were significantly higher in NZ four years later. Scientists with CS experience generally perceived more benefits, such as expanded data collection, community engagement and public awareness of science. The most frequently identified limitation was quality of data. Although this perception increased in the NZ cohort, the vast majority of scientists felt limitations could be overcome by careful project design and improved infrastructure support and professional recognition. These findings guide further recommendations for high level support systems to facilitate scientists’ involvement in citizen science.
Research Progress on Dexmedetomidine Regulating Autophagy in the Treatment of Acute Lung Injury
Authors: Li Guanrong , Li Min , Wang Ying , Ma Huijie , Zhang Boya , Chen Jun , Sun Yingui
Published: January 2024

Dexmedetomidine, extensively utilized as an intravenous anesthetic in anesthesia, intensive care units, and other related medical departments, exhibits significant anti-inflammatory effects while inducing sedation. Numerous studies have demonstrated its capability to regulate autophagy, thereby exerting potent anti-inflammatory effects and offering therapeutic benefits in the treatment of acute lung injury. This article comprehensively reviews the mechanisms underlying autophagy, the role of dexmedetomidine in autophagy regulation, and the protective effects it conders in the context of acute lung injury. By doing so, it contributes positively to the arsenal of strategies aimed at both preventing and treating acute lung injury.
Determining the Importance of Shaping Requirements Constructing Enterprise Culture Based on QFD
Authors: Hu Jun
Published: January 2024

To effectively improve the core competitiveness of construction enterprises, it is necessary to build a unique enterprise culture. In this paper, the adaptability of the quality function deployment (QFD) method in the process of construction enterprise culture construction is analyzed, and the construction process can be divided into three stages: cultural planning, process planning, and implementation planning. Furthermore, an analysis method of shaping requirements of internal and external customers in the formation of construction enterprise culture is proposed, which allows customer representatives to define shaping requirements using preferred phrases. Finally, an example is given to verify the effectiveness and feasibility of the proposed method.
Analysis of the Management of Office Administrative Archives Based on Big Data
Authors: Gao Songxue
Published: January 2024

In the era of big data, the development of each organization should keep pace with the times, especially in the management of office administrative archives, which is an important part of an organization’s management. Due to the extensive storage of administrative archives and the complexity of their content, daily management poses significant challenges. To enhance the efficiency and security of archive management, institutions should focus on implementing big data technology. The paper starts with an analysis of the significance of big data on the management of office administrative archives, followed by a discussion of the current status of archives management. This paper ends with a few strategies for applying big data technology in managing office administrative archives.
Budaya Individu Spesial dalam Perspektif Antropologi
Authors: Hasan Fahdi , Wastap Jaeni B , Saleh Sukmawati
Published: January 2024

Peradaban manusia merupakan hasil dari komentar antar budaya-budaya yang

dibentuk oleh interaksi individu. Setiap individu manusia merupakan entitas yang unik.

Individu spesial yang pada tahun 1980an disebut sebagai orang cacat dan selanjutnya pada

tahun 2016 disebut sebagai difabel, berpartisipasi dalam interaksi ini dengan keistimewaan

mereka. Bagaimana mereka berpikir, merasa, dan berperilaku memberikan sumbangan bagi

pembentukan budaya. Penelitian ini bertujuan untuk menginterpretasikan keistimewaan

individu spesial sebagai pembentukan budaya manusia. Untuk mencapai tujuan tersebut

diaplikasikan telaah antropologi yang mewujud dalam metode penelitian pengamatan dan

survey dalam forum group discussion (FGD). Penelitian ini menyimpulkan bahwa individu

spesial dengan cara berpikir, merasa, dan berperilaku membentuk nilai sosial dan nilai

budaya manusia.
Komunikasi Massa pada Teks Kuratorial Pameran Puisi Kertas & Refleksi Kurasi Heru Hikayat
Authors: Ferial M. Ravli , Supriatna Supriatna , Alif M. Zaini
Published: January 2024

Pameran memiliki peran sebagai tempat prestasi dan hidangan karya dari seniman. Namun, banyak juga konten pameran dibentuk dan dirancang penuh oleh kurator. Teks kuratorial dihadirkan sebagai mediasi terawal anatara seniman/pameran dengan publiknya. Pameran Puisi Kertas & Refleksi merupakan pameran retrospektif karya-karya Sunaryo Art Space yang berada di Bandung Utara. Penelitian ini menggunakan pendekatan komunikasi massa menurut David K. Berlo untuk mengupas model komunikasi pada pameran. Selain itu, metode yang didigunakan adalah metode kualitatif analisis ini menurut Sekaran & Bougie. Metode ini dipilih berdasarkan analisis konseptual yang mengacu pada data berupa teks. Temuan yang dihadirkan pada penelitian ini adalah bagaimana model komunikasi yang hadir dan isi pesan pada teks kuratorial pameran Puisi Kertas & Refleksi.
Visual Identity Logo Collaboration Eiger 1989 x National Park Collection 2022
Authors: Taufiq Muhammad , Nalan Arthur Supardan , Iskandar Andang
Published: January 2024

Every brand in the industry competition increasingly creates unlimited choices. That way, every brand is always trying to find ways to connect emotionally with consumers. Through this research, we can find out how the visual identity communicated through the collaboration logo design of the Eiger 1989 x National Park Collection is connected with the message of meaning to be conveyed. The research method uses qualitative to facilitate the analysis process. The authors also use a four-stage approach to visual communication design research methods, including description, analysis, interpretation, and assessment. The findings based on the research that has been done are collaboration logos that, at first glance, seem to use headlines with taglines. After being analyzed as a whole, the collaboration logo was designed based on following the anatomy of the logo formation, besides that, there are overall visual elements that can represent brand identity and collaboration concepts. Logo design through good composition and the meaning of good communication messages will increase customer loyalty.
CONFLICTO Y “PRIVATIZACIÓN” DE LA VIOLENCIA
Authors: Álvarez Rubio Ariel
Published: January 2024

El presente artículo aborda la evolución que ha experimentado el “mercenarismo”, a partir de lo que identificamos como “mercenarismo individual” hasta el “mercenarismo colectivo”. Adicionalmente, expone los principales antecedentes que caracterizan a dos organizaciones militares privadas, Academi (ex-Blackwater) de Estados Unidos de América y el grupo Wagner, de la Federación Rusa. Por otra parte, da a conocer lo que establece el Derecho Internacional respecto al reclutamiento, utilización, financiación y entrenamiento de mercenarios. También, presenta lo ocurrido en Chile respecto al mercenarismo, con énfasis en el Informe del Grupo de Trabajo de Naciones Unidas referido a la utilización de mercenarios nacionales. Finalmente, se efectúan algunas reflexiones preliminares relativas a la urgente necesidad de regular la violencia “privada” por parte de la Comunidad Internacional.
Kemampuan spasial siswa setelah belajar geometri deskriptif secara daring
Authors: Hendroanto Aan
Published: January 2024

Implementasi pembelajaran daring selama pandemic covid 19 telah berdampak pada perkembangan kemampuan spasial siswa dalam mata kuliah geometri deskriptif. Perkembangan kemampuan spasial siswa terganggu karena pelaksanaan pembelajaran yang secara daring sementara kegiatan praktikum seharusnya dilakukan secara luring. Penelitian ini bertujuan menganalisis kemampuan spasial mahasiswa program studi pendidikan matematika FKIP UAD pada mata kuliah geometri deskriptif. Penelitian ini merupakan penelitian kualitatif deskriptif dengan subjek yaitu 24 orang mahasiswa semester 4 peserta mata kuliah geometri deskriptif tahun akademik 2021/2022. Teknik pengumpulan data menggunakan tes kemampuan spasial, serta wawancara. Hasil dari penelitian ini menunjukkan bahwa skor rata-rata kemampuan spasial siswa 67,8 dengan kategori cukup. Hasil ini menunjukkan bahwa kemampuan spasial siswa masih kurang dari yang diharapkan yaitu masuk kategori sangat baik.
Implementasi kurikulum merdeka ditinjau dari pembelajaran matematika dan pelaksanaan P5 (studi di SMA Negeri 12 Kabupaten Tangerang)
Authors: Septiani Awaliyah
Published: January 2024

Penelitian ini dilakukan dengan tujuan untuk mengetahui tentang implementasi kurikulum merdeka di SMA Negeri 12 Kabupaten Tangerang, ditinjau dari pembelajaran matematika dan pelaksanaan projek penguatan profil pelajar pancasila (P5). Metode yang digunakan dalam penelitian ini adalah deskriptif kualitatif. Adapun data hasil penelitian diperoleh dari wawancara kepada kepala sekolah, wakil kepala sekolah bidang kurikulum, serta perwakilan guru matematika sebagai fasilitator. Hasil wawancara menunjukkan bahwa pelaksanaan pembelajaran matematika pada kurikulum merdeka di desain lebih menyenangkan dan dilaksanakan sesuai dengan fase perkembangan peserta didik serta gaya belajarnya, tujuannya adalah agar peserta didik tidak merasa terbebani dalam mengikuti pembelajaran. Selain itu, peserta didik tidak diharuskan menguasai matematika, karena minat dan bakat setiap individu berbeda-beda. Laporan hasil belajar disesuaikan dengan pencapainnya masing-masing. Proses pembelajaran lebih di tekankan kepada keaktifan peserta didik melalui model problem based learning (PBL) dan project based learning (PjBL) untuk menguatkan karakter peserta didik. Sedangkan untuk kegiatan projek penguatan profil pelajar pancasila (P5) sebagai bagian dari implementasi kurikulum merdeka telah dilaksanakan dengan baik sesuai dengan tujuan yang ditetapkan, yaitu menguatkan profil pelajar pancasila. Hasil dari projek peserta didik dalam kegiatan P5 berupa poster dan ecobrick sebagai bentuk pengolahan sampah plastik menjadi barang yang bisa dimanfaatkan kembali, dan film pendek tentang gaya hidup berkelanjutan. Adapun raport kegiatan P5 akan diberikan kepada orang tua sebagai laporan hasil kegiatan pada setiap akhir tahun pelajaran.
Pewarnaan harmonis pada beberapa kelas graf berarah
Authors: Jannah Nurul , Kusumastuti Nilamsari , Pasaribu Meliana
Published: January 2024

AbstrakPewarnaan graf merupakan suatu pemetaan dari elemen pada suatu graf  ke himpunan semua bilangan asli  sedemikian sehingga setiap elemen yang bertetangga tidak dipetakan ke bilangan yang sama. Pada pewarnaan graf, image dari elemen suatu graf disebut warna.  Dimisalkan dan adalah simpul-simpul pada  dan serta  adalah warna. Jika simpul  diwarnai dengan  dan simpul diwarnai dengan  maka pasangan warna yang dihasilkan adalah pasangan warna . Pewarnaan harmonis menerapkan konsep pewarnaan simpul dalam mewarnai suatu graf dengan syarat satu pasang warna muncul paling banyak satu kali. Banyak warna yang paling minimum yang digunakan dalam pewarnaan harmonis disebut bilangan kromatik harmonis. Dalam penelitian ini, konsep pewarnaan harmonis akan diterapkan pada beberapa kelas graf berarah untuk melihat pola bilangan kromatik dari masing-masing kelas tersebut. Seperti diketahui, pada graf berarah , pasangan warna sehingga proses pewarnaan tersebut menjadi lebih kompleks. Adapun kelas graf yang dibahas adalah graf lili berarah , graf komplit berarah  dan graf kipas berarah . Didapat bilangan kromatik harmonis pada graf lili berarah  adalah  dengan ; bilangan kromatik harmonis pada graf komplit berarah  adalah . Sedangkan bilangan kromatik harmonis pada pewarnaan graf kipas berarah  berada pada selang .Kata kunci: bilangan kromatik harmonis; pasangan warna; pewarnaan simpul
Efektifitas Media Plastisin Terhadap Pemahaman Konsep Materi Pecahan Kelas II SDIT Makarimal Akhlaq
Authors: Nazarudin Achmad
Published: January 2024

Penelitian ini dilatarbelakangi oleh rendahnya pemahaman konsep siswa pada pembelajaran matematika, disebabkan karena kurangnya variasi strategi pembelajaran dalam mengajar berupa media pembelajaran. Proses pembelajaran tanpa menggunakan media pembelajaran sehingga kurangnya partisipati siswa dalam belajar, sehingga mengakibatkan pemahaman konsep siswa rendah. Tujuan penelitian ini adalah untuk mengetahui efektifitas media plastisin terhadap pemahaman konsep materi pecahan kelas II SDIT Makarimal Akhlaq. Penelitian ini merupakan penelitian kuantitatif dengan desain penelitian One Group Pretest-Posttest. Populasi penelitian ini adalah seluruh siswa kelas II SDIT Makarimal Akhlak yang berjumlah 17 siswa. Teknik pengambilan sampel menggunakan Total Sampling. Jadi, sampel pada penelitian ini adalah seluruh siswa kelas II SDIT Makarimal Akhlaq yang berjumlah 17 siswa atau diperoleh sejumlah dengan populasi. Teknik analisis data menggunakan uji analisis data yang mencakup uji hipotesis dan uji t. Diperoleh thitung> ttabel dengan diperoleh hasil 6,503 > 1,746, maka menunjukan terdapat perbedaan pemahaman konsep antara sebelum dan sesudah menggunakan media plastisin. Diperoleh hasil sig= 0,000 yang berarti lebih 0,000 < 0.05, maka dinyatakan Ho ditolak dan Ha diterima. Dengan demikian, maka diperoleh hasil bahwa penggunaan media plastisin efektif  terhadap pada pemahaman konsep siswa materi pecahan di kelas II SDIT Makarimal Akhlaq.
Pengembangan media pembelajaran papan faktorisasi berbasis Braille untuk siswa tunanetra SLB - A Yapti Makassar
Authors: Masriani Masriani , HN Wahyudi , Fujiandi Sri , Alam Sahrul
Published: January 2024

Penelitian ini bertujuan untuk menghasilkan produk berupa media pembelajaran dalam hal ini media pembelajaran Papan Faktorisasi Berbasis Braille untuk Siswa Tunanetra SLB-A Yapti Makassar untuk memudahkan dalam proses pembelajaran materi Faktorisasi. Pengembangan media pembelajaran papan faktorisasi  ini dipilih karena melihat kesulitan siswa dalam memahami pelajaran matematika khususnya pada materi faktorisasi karena untuk materi faktorisasi cukup sulit untuk dipahami tanpa alat atau media pembelajaran selain buku yang menjadi perantara untuk siswa. Penelitian ini menggunakan jenis penelitian Research and Development (R&D) dengan model pengembangan 4D yakni define, design, development, dan desimination. Namun dalam penelitian ini tim peneliti hanya mengadaptasi tiga tahapan dan untuk tahap desimination tidak dapat dilaksanakan karena keterbatasan waktu oleh tim peneliti. Teknik pengumpulan data yang digunakan dalam penelitian yaitu observasi sebagai bentuk langkah awal dari tim peneliti untuk mengambil data awal penelitian dan angket digunakan dalam penelitian berupa kuesioner untuk menilai kelayakan media serta analisis kepuasan pengguna. Hasil penelitian ini telah melalui uji coba serta hasil analisis data yang diperoleh sesuai dengan apa yang diharapkan oleh tim peneliti yakni peneliti berharap bahwa media yang dikembangkan layak untuk digunakan. Hasil pengujian oleh validator ahli atau expert di bidang pengembangan media pembelajaran untuk siswa tunanetra yakni layak untuk di uji coba kepada pengguna dan untuk hasil pengujian pengguna dari tujuh orang responden diperoleh rata-rata nilai persentase sebesar 83% (Sangat Setuju/Sangat Layak) untuk di gunakan.
Synthesis, Crystal Structures, Photophysical Properties and Antibacterial Activities of Copper(II) Complex Derived from 4-Chloro-2-{[(2,6-dimethylphenyl)imino]methyl}phenol
Authors: Guo Y.-N. , Hu X.-B. , Zhang H.-G. , Han Y.-F. , Wang H.
Published: January 2024

A new asymmetrical Schiff base ligand, (E)-4-chloro-2-{[(2,6-dimethylphenyl)amino] methyl}phenol(HL), and its mononuclear Cu(Ⅱ) complex have been synthesized. The molecular structures and spectroscopic properties of the ligand and its complex were experimentally characterized by single crystal X-ray diffraction, elemental analysis, FT-IR, NMR and UV-Vis spectroscopic techniques. The analysis confirmed that the Cu atom in complex is generally four-coordinated by one imino N and one phenolic O atoms of a Schiff-base ligand adopting a trans-configuration of N2O2 donor atoms around the metal ion, forming a tetrahedral geometry. Density functional calculation is being carried out on both HL and copper(Ⅱ) complex to investigate changes in structural parameters, energies of the HOMO and LUMO. The results demonstrated that the HOMO and LUMO were effectively separated with the benzene ring of 2,6-dimethylbenzenamine as a donor unit and the benzene ring of 5-chlorosalicylaldehyde as an acceptor unit. The effective HOMO-LUMO separation helps to induce intramolecular charge transfer from the HOMO to the LUMO. The HOMO-LUMO energy gap become smaller when the Schiff base ligand coordinated with Cu(II) ion, most likely due to the interaction of the d-orbitals of copper(Ⅱ) with the HOMO and/or LUMO of the ligand. These theoretical calculations supported the experimentally observed results.The biological assay revealed that both Schiff base and the complex have different antimicrobial activity. The complex has the MIC value of 0.0781 mmol·L-1 against Escherichia coli.
Correlation of Hepcidin with Hemoglobin and Iron Parameters in Iraqi Patients with Beta -Thalassemia major
Authors: Nahi Sameh , Jabir Ferdous
Published: January 2024

Background: Thalassemia is characterized by genetic abnormalities in the synthesis of hemoglobin, leading to a decrease or missing production of one or more in the globin chains. Consequently, this disrupts the synthesis of hemoglobin molecules, resulting in anemia, which is a prominent manifestation of thalassemia. Iron is an essential element for cellular health and is involved in various functions, including oxygen transportation, biomolecule synthesis, respiration, and homeostasis. Hepcidin, a low molecular weight peptide produced in the liver, plays a crucial role in regulating iron homeostasis. Objectives: Study the correlation of Hepcidin with Hemoglobin, Ferritin, and Iron Parameters in  Patients with Beta-Thalassemia major. Methods: The serum ferritin of all subjects was measured by the ELFA technique (Enzyme Linked Fluorescent Assay), Serum Hepcidin is measured by the ELISA kit, and Iron, UIBC as well as TIBC are measured via colorimetric methods. Results: The { mean ± SD } of Ages and Genders among Patients with healthy groups were not significant. The { mean ± SD } of Hb and serum levels of Iron, UIBC, TIBC, Hepcidin concentration, and BMI between  Patients and healthy groups were statistically significant. The study results of the correlation between Hepcidin and other markers in the beta-thalassemia patient's group showed a non-significant negative correlation of hepcidin with TIBC and UIBC. while there is a non-significant weak correlation between hepcidin with Hb and Ferritin. and the results have shown a non-significant positive correlation between hepcidin and Iron. Conclusion: In this study showed a marked reduction in hemoglobin production and high levels of Iron and Ferritin concentration, while the concentration of TIBC and UIBC was observed to decrease in individuals with this disease compared to healthy individuals. This study showed low hepcidin concentration in ?-TM major patients compared to healthy subjects.
Disolución de plata en relaves: evaluación del sistema Tiourea-Oxalato
Authors: Muñoz-Hernández Erick Jesus , Ruiz-Sánchez Ángel , Palacios-Beas Elia Guadalupe , Reyes-Pérez Martín , Urbano-Reyes Gustavo , Juárez-Tapia Julio César
Published: January 2024

Los residuos mineros también conocidos como colas, son desechos que se generan durante el proceso de extracción y beneficio de minerales, los cuales pueden contener elementos de interés económico como es el caso de la plata (Ag). En este estudio, se investiga la efectividad del sistema Tiourea (CH4N2S) - Oxalato (C2O42-) para lograr una disolución eficiente de la Ag presente.

La muestra fue caracterizada mineralógicamente por la técnica de DRX y MEB-EDS, posteriormente para conocer el contenido de Ag, se realizó el análisis químico mediante EAA. Los parámetros evaluados en la disolución del metal precioso fueron la [CH4N2S] y [Na2C2O4], en un rango de 0.3 a 0.5 mol l-1 y 0 a 0.0081 mol l-1, respectivamente. El seguimiento de la reacción se realizó por la técnica de EAA. Como resultado se obtuvo una disolución de 85.98% al utilizar 0.3 mol l-1 de CH4N2S y 0.0081 mol l-1 de Na2C2O4, a los 60 minutos.