bluuebunny/crossref_metadata_2025 huggingface dataset:
Effects of Ketamine and Esketamine on Cognitive Functions in Treatment-Resistant Depression
Authors: Mutlu Mahir , Öven Çağrı , Kurt Bilge Sena , Sunay Emre
Published: December 2024

Major depressive disorder is a public health issue that negatively impacts quality of life and leads to cognitive impairments, causing significant disruptions in work, education, and social life. Treatment-resistant depression is defined as the failure to achieve improvement in depressive symptoms despite the use of at least two different antidepressant medications at adequate doses and durations. Current pharmacological approaches are inadequate for about half of treatment-resistant depression patients, and the effects of these medications on cognitive impairments are limited. Therefore, there is a need for new and effective treatment methods. This review aims to evaluate the effects of ketamine and esketamine on cognitive functions in the treatment of treatment-resistant depression patients. Relevant literature has been reviewed and recent studies have been evaluated. The results of randomized controlled trials indicate that ketamine is effective in treating treatment-resistant depression and can improve specific cognitive domains. Significant improvements in cognitive functions such as visual memory, processing speed, working memory, and attention have been recorded in patients responding to 0.5 mg/kg ketamine infusion. However, long-term use of ketamine may have negative effects on spatial working memory. Esketamine, an NMDA receptor antagonist, has shown rapid and effective antidepressant outcomes, providing stability or improvement in cognitive functions. Additionally, its intranasal administration offers practical advantages. However, findings suggest that high doses of esketamine may have neurotoxic effects and negatively impact cognitive functions. The effects of both drugs on depressive symptoms and cognitive functions vary depending on dose, duration of use, and frequency of administration. In conclusion, while ketamine and esketamine show significant potential in the treatment of treatment-resistant depression and improvement of cognitive symptoms, further research is needed regarding their long-term effects and safety.
Digital Amnesia: The Erosion of Memory
Authors: Kanbay Yalçın , Babaoğlu Elçin , Akkurt Yalçıntürk Aydan , Akçam Aysun
Published: December 2024

Digital amnesia is a condition in which our memory capacity decreases as a result of changes in our habits of accessing and storing information with the many features of modern digital devices and the internet. When people think that information is easily accessible on the Internet, they prefer to store information on digital devices rather than remember it. This situation leads to a weakening of in-depth information processing and critical thinking skills due to the ease of access to information and the immediate availability of responses. In particular, the fact that students and young adults store and rely on information on digital devices rather than taking notes negatively affects their learning and memory processes. Neuroscience research suggests that the constant flow of digital information may lead to structural and functional changes in brain regions associated with attention and memory. These changes include cognitive effects such as distraction and reduced memory functions resulting from intensive use of digital devices. Digital amnesia also has social and psychological effects. Continuous use of digital devices reduces face-to-face communication and weakens social interactions. Increased screen time and the expectation of instant access to information lead to psychological problems such as impatience, distraction, sleep problems and stress. In conclusion, digital detox, time management by limiting screen time, and sleep hygiene are important to minimize the negative effects of excessive use of digital devices and to protect cognitive health. Strategies such as memory exercises with activities such as solving puzzles and reading books, physical note-taking and planning, more face-to-face social interactions and increasing physical activity also have important effects on cognitive health protection. It is also suggested to raise public awareness through trainings on the concept of digital amnesia, its negative effects and prevention strategies.
Information equivalence of two forms of the scale of identification with a social group
Authors: Mikhailova Lyudmila
Published: December 2024

The most used scale in Russia for measuring social identification includes the general question formulation "Please indicate for each group how often you feel a sense of closeness..." followed by a list of social groups for which the respondent must assess their closeness, using the gradations "often," "sometimes," "almost never," and "difficult to say". There is a possibility of increasing the number of gradations of this scale. Its two forms — the traditional categorical and the rating — can be empirically compared, firstly, in terms of how reducible the rating scale is to the categorical one, and secondly, in terms of the strength of statistical relationships formed with control variables when using both forms of the scale.
Both forms of the scale were applied in a study of the social identity of Russian consumers conducted by the "Expert Sociology" company. The items from the materialism scale developed by M. Richins and S. Dawson in its modified adaptation in Russian by V. A. Khashchenko were taken as control variables. The analysis showed that in the traditional categorical form of the social identification scale, the gradation "difficult to say" does not maintain a consistent relationship with other response options. Transforming the scale into a kind of a Likert scale by converting categories into scores allows for the discovery of statistical relationships where the traditional form shows their absence. Therefore, in terms of information content, the rating scale may surpass the traditional one. However, the traditional form of the scale is more suitable for supporting managerial decisions.
Eficacia de dos escáneres intraorales: percepción de estudiantes de posgrado de una universidad privada de Lima
Authors: Flores-Mas Ricardo , Fukuhara-Nakama Mary , Chávez-Alayo Pablo , Fernández-Jacinto Leila
Published: December 2024

Objetivo: Determinar la percepción de estudiantes de posgrado de una universidad privada de Lima sobre la eficacia de los escáneres intraorales (IOS) Primescan Dentsply Sirona® y Virtuo Vivo Straumann®. Materiales y métodos: Estudio transversal en el que participaron 10 estudiantes de Rehabilitación Oral, quienes, luego de ser capacitados, escanearon un modelo utilizando ambos IOS; posteriormente, se recogió sus percepciones a través de un cuestionario. Resultados: El IOS Primescan Denstply Sirona® fue considerado por el 80 % (n = 8) y 100 % (n = 10) de los estudiantes como el que posee mejores características en la velocidad y flujo de escaneo, respectivamente; y el IOS Virtuo Vivo Straumann® fue considerado como el más ergonómico por el 100 % (n = 10). Conclusiones: El IOS Primescan Denstply Sirona® fue percibido como el escáner más rápido, nítido y con mejor flujo de escaneo; y el IOS Virtuo Vivo Straumann® fue considerado como el más ergonómico y preferido.
Salud bucal familiar y gastos por caries dental en niños atendidos en un centro de salud de Lámud, Perú, durante el año 2023
Authors: Tafur Chávez Nestor Arturo , Pizarro Salazar Oscar , Ordinola Ramírez Carla María , Bustamante Visalot Susan Yesabel
Published: December 2024

RESUMEN
Objetivo: Determinar la correlación entre la salud bucal familiar y los gastos por caries dental en niños atendidos en el Centro de Salud de Lámud, Perú, durante el año 2023. Materiales y métodos: Estudio de carácter cuantitativo, enfoque observacional, diseño transversal, y de tipo analítico. La muestra estuvo conformada por 240 niños preescolares, cuyos padres y/o apoderados acudieron a consulta odontológica al Centro de Salud de Lámud. La selección fue de tipo no probabilística y por conveniencia. Resultados: No hay correlación estadísticamente significativa entre salud bucal familiar y gastos por caries dental en niños atendidos en el Centro de Salud de Lámud durante el año 2023 (p > 0,05). Tampoco se encontró correlación significativa entre salud bucal de los niños atendidos y los gastos odontológicos por caries dental en el mismo centro de salud (p > 0,05). Además, no se observó correlación estadísticamente significativa entre salud bucal del padre o madre y los gastos odontológicos por caries dental en el referido nosocomio (p > 0,05). Conclusión: No existe correlación entre salud bucal familiar y gastos por caries dental en niños atendidos en el Centro de Salud de Lámud durante el año 2023.
Student Academic Performance: The Role of Antecedents, Mediation, and Moderation
Authors: Ekowati Dian , Safira Dea Salma
Published: December 2024

Objective: This study aims to investigate students' academic performance by examining the role of knowledge hiding (KHi) as a mediating variable and using three antecedents as dependent variables. Additionally, it explores the moderating role of academic self-efficacy on KHi behavior and students' academic performance. The research objectives should be expressed clearly and concisely.
Design/Methods/Approach: Eleven hypotheses were analyzed using structural equation modeling (SEM). Data were collected through a primary survey based on structured questionnaires, with a sample size of 252 undergraduate students from various universities.
Findings: Performance motivation and sense of relatedness positively affect academic performance, while territoriality of knowledge negatively affects academic performance. Territoriality of knowledge and sense of relatedness increase KHi. Meanwhile, performance motivation doesn't notably influence it. KHi partially mediates the impact of knowledge territoriality and fully mediates the effect of relatedness on academic performance. Academic self-efficacy doesn't significantly moderate the relationship between KHi and academic performance.
Originality/Value: The study was conducted among students, bringing an academic perspective into the KHi literature. This study contributes new insights from a developing country to human resource management by examining KHi and academic performance within higher education—a previously unexplored context. Conducted among students, it enriches the KHi literature with valuable academic perspectives.
Practical/Policy implication: This study presents exciting insights for administrators and policymakers in academia. By establishing a model, the research highlights that the phenomenon of KHi exists among students, which may or may not have immediately apparent negative effects, especially when compared to an organizational context. However, it certainly does not bode well for their future in the workforce, where indulging in knowledge hiding within teams or groups as employees can be detrimental.
Does Tax Saving Moderate the Effect of Capital Structure on Firm Performance? An Empirical Research of Indonesian Construction Firms
Authors: Wibisono Sarwoko Azalea , Viverita
Published: December 2024

Objective: This study aimed to empirically examine the impact of capital structure and the moderating effect of tax savings on firm performance of Indonesian SOEs and public construction firms.
Design/Methods/Approach: Using the fixed effect robust standard error, this study analyzed the effect of capital structure and moderating role of tax saving on performance of 104 observations during the period of 2010-2022. Firm’s performance is measured by technical efficiency using data envelopment analysis (DEA), ROA, and ROE. Meanwhile, capital structure was measured by debt ratio.
Findings: The result shows that there are stark differences between the effect of capital structure on firm performance between SOEs and public firms. It is found that capital structure negatively affects firm performance of SOEs, while there is an insignificant positive impact on a public firm’s ROA and ROE. The study supports the trade-off theory, emphasizing the importance of optimal leverage level in Indonesian construction firms.
Originality/Value: This study examines the moderating impact of tax saving on capital structure and firm performance, providing evidence on how capital structure influence tax saving and eventually affect firm’s performance of Indonesian construction firms.
Practical/Policy implication: The findings suggest managers should consider the benefit of tax saving when making decisions of capital structure. At the same time, policymakers should make laws about tax that maintain business continuity.
Checkout or Scroll Down? Investigating TikTok’ Influencer Credibility Effects on Followers' Purchase Intentions
Authors: Prasetyo Salsabil Dwi Kusuma , Sobari Nurdin
Published: December 2024

Objective: This study explores the influence of influencer credibility on consumer purchasing intentions on TikTok, focusing on the Indonesian market. It examines the mediating roles of trust and online engagement in the relationship between influencer credibility and purchasing intentions, providing insights into influencer marketing strategies.
Design/Methods/Approach: A quantitative approach was employed, using questionnaires to collect data from 356 TikTok users who had made purchases on TikTok. Regression analysis tested the relationships between influencer credibility, trust, online engagement, and purchase intention.
Findings: The study found that attractiveness positively and significantly impacts credibility, trust, and purchase intention. Credibility also positively influences trust. Furthermore, trust and online engagement are positively linked to purchase intention. While reliability and expertise positively influence credibility and online engagement, they do not significantly impact purchase intention.
Originality/Value: This research applies the SOR (Stimulus-Organism-Response) model by examining the impact of influencer credibility factors—physical attractiveness, reliability/honesty, and expertise—on purchase intention, mediated by trust and online engagement. It provides empirical evidence and a theoretical framework for understanding consumer behavior in TikTok influencer marketing campaigns.
Practical/Policy Implication: Our results provide a deeper understanding of how TikTok influencer's credibility can influence trust, online engagement, and consumer purchasing intentions in TikTok. The practical implications of this research can guide companies in improving their relationship marketing strategies, significantly increasing consumer purchasing intentions. In addition, the theoretical contribution of this research can improve understanding of the concept of influencer credibility and provide a summary of trust, online engagement, and purchase intention.
Chemical ingredients in personal care products and their hormetic effects on freshwater photobacteria
Authors: Li Kai , Li Xiang-Wei , Xu Ya-Qian
Published: December 2024

Personal care products (PCPs), including skin lotions, toners, and make-up waters, are ubiquitous in daily life. Prior research has demonstrated hormesis, a biphasic dose-response phenomenon, in these PCPs on the freshwater photobacterium Vibrio qinghaiensis sp. -Q67 (Q67). Given that PCPs contain various active chemical components, their hormetic effects are intricately linked to these ingredients. However, studies focusing on the concentration-response relationships of individual PCP chemical ingredients are scarce. Building upon our previous work, we analyzed the ingredients of 6 PCPs and employed Q67 as a model organism to investigate the concentration-response relationships of these ingredients. Our analysis of 6 representative PCPs revealed 49 chemical ingredients, categorized into 10 moisturizers, 5 preservatives, 5 emulsifiers, 5 emollients, 20 ingredients with known efficacy, and 4 with unknown efficacy. Among these 49 chemical ingredients, 30 water-soluble ones were suitable for toxicity testing. At 0.25 h, 23 chemical ingredients exhibited S-shaped concentration-response curves (CRCs) with EC50 values spanning from 6.943E-5 g/mL [lactic acid (LAA)] to 1.032 g/mL [sorbitol (SBO)], while 2 [PEG-7 glyceryl cocoate (PGC) and Tween 80 (TW80)] showed hormesis with J-shaped CRCs, and 5 [adenosine (ADE), dexpanthenol (DEX), E4C, E6C, serine (SER)] lacked discernible CRCs. At 12 h, 13 chemical ingredients displayed S-shaped CRCs with EC50 values ranging from 4.402E-5 g/mL (E6C) to 1.961E-1 g/mL [dicaprylyl carbonate (DIC)], while 16 showed J-shaped CRCs, with EC50, zero effective concentration point (ZEP), ECmin, and Emin values indicating a consistent variation range spanning 4 orders of magnitude. These findings underscore the importance of considering individual chemical ingredients in assessing the risks associated with PCPs.
Partisipasi Masyarakat Dalam Program Keluarga Berencana (KB ) Intra Uterine Device (IUD) Di Desa Murung Raya, Balah Paikat Dan Hakurung Kecamatan Daha Utara Kabupaten Hulu Sungai Selatan
Authors: Siti Raudah  , Marzuki
Published: December 2024

Abstract: Community participation is the main requirement in achieving an expected activity goal. In fact, community participation in the Intra Uterine Device (IUD) Family Planning program in the villages of Murung Raya, Balah Paikat and Hakurung is still low. According to data from the 2022 Family Planning Counseling Center, people who use IUD KB in Murung Raya Village (2 people), Balah Paikat (0 people) and Hakurung (0 people). People still use a lot of birth control injections and birth control pills. There are people who are pregnant and want to have children. The community does not understand about this IUD family planning because they have never participated in socialization. This study aims to determine community participation in the Intra Uterine Device (IUD) family planning program in the villages of Murung Raya, Balah Paikat and Hakurung. And the factors that influence community participation in the Intra Uterine Device (IUD) family planning program. This type of research is descriptive qualitative. The data source of the informant withdrawal technique used purposive sampling of 15 informants. Data collection techniques were carried out by interviews, observation, and documentation. Analyzed with data techniques, namely data reduction, data presentation, and drawing conclusions. Credibility tests, namely extending observations, increasing persistence, triangulation, analyzing negative cases, using reference materials and conducting member checks. The results of this study indicate that community participation in the Intra Uterine Device (IUD) family planning program in the villages of Murung Raya, Balah Paikat and Hakurung is not good, it can be seen that the community still lacks information due to limited information media, many people are afraid to use IUD KB because of the issues circulating, the community does not provide ideas and ideas about the development of IUD KB, regarding achieving appropriate targets but the community uses a lot of KB injections, pills and implants. The driving factor for community participation is socialization and the installation of KB IUDs. The inhibiting factor is the lack of public knowledge and the community feeling safe using other contraceptives. To increase community participation by providing more socialization and continuing to offer this IUD KB and slowly eliminating issues circulating in the community so that people in Murung Raya Village, Balah Paikat, Hakurung and all villages in Daha Utara District want to use this IUD KB
 
Keywords: Community Participation, Program, IUD
RESPON FISIOLOGI TERHADAP CEKAMAN KEKERINGAN DENGAN INDUKSI PAKLOBUTRAZOL DAN INTERVAL PENYIRAMAN PADA KEDELAI (Glycine max (L.) Merrill)
Authors: Ningsih Rita , FAIZAL HARDIANTY
Published: December 2024

This research aims to observe the combination effect of watering interval, and paclobutrazol toward chlorophyll, alkaloid and anthocyanin content of soybean leaves (Glycine max (L.) Merrill) growing in ultisol soil. This experimental research used a factorial complete randomized design with three replicates. There were two factors: watering interval (H1: every day, H2: 2 days and H3: 3 days) and paclobutrazol concentrations (P0: 0 ppm, P1:100 ppm, and P2: 200 ppm). The data analysed by two way Anova (Analysis of Variance) and continued with Tukey test. The result showed that watering interval and paclobutrazol had significantly interaction effect on chlorophyll, alkaloid and anthocyanin. Treatment combination which gives the highest content of chlorophyll was H2P2 (33.2 CCI), alkaloid was H3P2 (0.0177 g), and also anthocyanin was H3P2 (0.721%). It can be concluded that the application of paclobutrazol can stimulate physiological responses in the form of increasing the content of chlorophyll, anthocyanins and alkaloids so that the survival capacity of soybeans increases under drought stress conditions.
AKTIVITAS EKSTRAK KASAR ENZIM AMILASE DARI BAKTERI Aeromonas hydrophila ISOLAT M1S2 ASAL LAHAN RAWA MANDIANGIN, KALIMANTAN SELATAN
Authors: Hasanah Aynul , Susilawati Ika Oksi , Badruzsaufari Badruzsaufari
Published: December 2024

Aeromonas hydrophilla isolate M1S2 was isolated from Mandiangin swampy soil, South Kalimantan, and showed potential amylolytic activity by producing an amylase enzyme. This study aims to qualitatively and quantitatively analyze the ability of isolate M1S2 to hydrolyze starch substrate, measure amylase enzyme activity and specific activity of amylase enzyme crude extract, and analyze the effect of temperature and pH on amylase enzyme activity. The results of this study showed that isolate M1S2 was able to hydrolyze starch substrate with an amylolytic index of 1.23. In addition, the Fehling test indicated that the isolate produced amylase enzyme in the culture medium. The amylase enzyme activity and specific activity of isolate M1S2 were 0,00072 U/mL and 0.1634 U/mg, respectively. The amylase enzyme reached optimum activity at 40 0C and pH 6.
ANALYSIS OF SEAWEED CULTIVATION DEVELOPMENT STRATEGIES IN MUARA PAGATAN VILLAGE SUB-DISTRICT KUSAN HILIR DISTRICT TANAH BUMBU
Authors: Al Mughni Muhammad Johari , Rifa’i Muhammad Ahsin , Tony Frans , Syahdan Muhammad
Published: December 2024

Seaweed is a food commodity with benefits in the food industry, pharmaceuticals and others. Muara Pagatan Village is located in Kusan Hilir District, Tanah Bumbu Regency. According to Mughni (2021), Muara Pagatan Village has 12 households with seaweed cultivation. Based on that, it is necessary to study the development strategy of seaweed cultivation in Muara Pagatan Village. The approach used in the acquisition of seaweed aquaculture development strategies is the SWOT approach (strengths, weaknesses, opportunities and threats) and a participatory approach involving stakeholders, government and the community of Muara Pagatan Village, this research uses questionnaires distributed to representatives of RTP Muara Pagatan Village. The results of this study include 4 SWOT parameters which include, strengths in the form of land feasibility/potential, growth rate, accessibility and quality of seeds, for weaknesses in the form of limited capital, less innovative and not optimal production results. Meanwhile, opportunities include high demand, cooperation with other parties, government assistance, lack of competitors and availability of labor, for threat parameters include industrial activities, pests and diseases, weather, abrasion and prices. After that, SWOT analysis was carried out in obtaining seaweed cultivation development strategies, there were 9 priority strategies obtained based on SWOT parameters.
ANALISIS SISA UMUR PAKAI TPA REGIONAL BANJARBAKULA TANPA DITERAPKANNYA UPAYA PEMILAHAN SAMPAH RESIDU
Authors: Maylana Fitria Rizky , Mahyudin Idiannoor , Hafizianor Hafizianor , Febrianty Irma
Published: December 2024

Evaluation indicates that the institutional framework of the Banjarbakula Regional Landfill (TPA) requires improvement, particularly in terms of structural positions and human resource expertise. This research aims to analyze the remaining operational life of the Banjarbakula Regional Landfill without the implementation of residual waste separation efforts. The study was conducted at the Banjarbakula Regional Landfill, located on Jalan Gunung Kupang, Cempaka District, Banjarbaru City. The analysis of the landfill's remaining life employs a quantitative descriptive method, analyzing data on the volume of waste entering the landfill from 2019 to 2023 and the available land area for waste deposition. This projection of waste accumulation is derived from direct observations, measuring the remaining land capacity for waste, and assessing the landfill's total capacity. Based on this analysis, an evaluation of the landfill's remaining operational life can be performed. Without the implementation of residual waste separation, the Banjarbakula Regional Landfill is projected to reach its full capacity in 3 years and 6 months, specifically by September 2028, indicating a suboptimal performance at the Banjarbakula Regional Landfill.
ANALISIS FAKTOR-FAKTOR YANG BERHUBUNGAN TERHADAP KUALITAS BAKTERIOLOGIS PADA AIR SARANA PAMSIMAS DI KECAMATAN LAMPIHONG KABUPATEN BALANGAN
Authors: Wijaya Herman , Fatmawati Fatmawati , Rahman Mijani , Suhartono Eko
Published: December 2024

Clean water is a very vital need for all humans. The PAMSIMAS Program is a community-based drinking water and sanitation provision activity carried out on the basis of cooperation between the Central Government, Regional Government and the World Bank. Balangan Regency has approximately 56 units of PAMSIMAS facilities, especially in Lampihong District. Water at PAMSIMAS facilities with raw water sources using drilled wells will experience a decline in bacteriological quality in 2022 (does not meet quality standards). So this research aims to analyze the bacteriological quality of Sarana PAMSIMAS water and analyze factors related to the bacteriological quality of Sarana PAMSIMAS water in Lampihong District, Balangan Regency. This research was carried out in Lampihong District, Balangan Regency from October to December 2023. The research was carried out by analyzing bacteriological quality and directly observing risk factors related to bacteriological quality. The data analysis used in this research is logistic regression analysis using the backward method. The results of the bacteriological quality analysis show that in measuring the Total coliform in the morning samples there was 1 sample in Matang Lurus Village RT.02 which met the quality standards while at other locations the Total coliform content was higher. of 0, while in the samples taken in the afternoon there were 5 (five) samples that met the quality standards while the other 5 (samples) contained Total coliforms of more than 0. The results of measuring Escherichia coli in the morning samples contained 2 observation points that contained The Escherichia coli is equal to 0, while in the samples taken in the afternoon there were 3 samples containing Escherichia coli more than 0. Meanwhile, based on the results of logistic regression analysis using the backward method, it can be seen that factors that either partially or simultaneously influence Bacteriological quality of water at PAMSIMAS facilities that use drilled wells as a source of raw water, namely Pegurasan reservoir and water treatment.
ANALISIS KUALITAS AIR YANG AIR DISTRIBUSI KE PELANGGAN PADA ZONA BANJARMASIN UTARA PAM BANDARMASIH
Authors: Ridho Muhammad Rasyid , Rahman Mijani , Yunita Rizmi , Sofarini Dini
Published: December 2024

There are several processes involved in the treatment of clean water, namely filtering, sedimentation, coagulation, flocculation, filtration, and disinfection. These processes are utilized by PAM Bandarmasih at the Water Treatment Plant II (IPA II) situated on Jalan Pramuka. The objective of the research is to analyze the quality of water distributed to the North Zone of Banjarmasin by PAM Bandarmasih. The research location was intentionally chosen (purposive sampling) within the Bandarmasih PAM area, encompassing the raw water sources from the Tabuk River, IPA 1, and IPA 2 in the North Banjarmasin zone. The Tabuk River watershed serves as a tributary of the Martapura River, which is utilized as a water source to fulfill the daily needs of the people. The data analysis technique employed to address the research objectives involves analyzing the quality of distributed clean water using the storet method. Evaluation of the water quality distributed to customers in the North Banjarmasin PAM Bandarmasih zone leads to the conclusion that both the quality of raw water and treated water as a whole meet the quality standards outlined in accordance with PERMENKES Regulation Number 2 of 2023. The assessment of clean water quality distributed is based on the water quality storet method, indicating that the clean water distributed by PAM Banjarmasih originates from the lightly polluted AD Mufti River, with a total score of (-9).
Upaya Peningkatan Orientasi Wirausaha UMKM Lahan Basah di Sentra Industri Kerajinan Purun Banjarbaru
Authors: Naparin Muhammad , Achmad Basir
Published: December 2024

Potensi lahan basah di Kalimantan Selatan yang kaya akan flora dan faunanya berperan penting dalam meningkatkan kesejahteraan masyarakat. Tumbuhan khas lahan basah seperti purun tikus (Eleocharis dulcis) dan purun danau (Lepironia articulata Retz.) merupakan tumbuhan berserat panjang yang dapat dimanfaatkan sebagai bahan kerajinan bernilai tinggi yang dapat menopang perekonomian masyarakat dan menciptakan lingkungan lestari. Dalam rangka memaksimalkan pemanfaatan dan nilai tambah potensi lahan basah bagi masyarakat dengan asas kelestarian (lingkungan, sosial budaya, dan ekonomi) diperlukan upaya-upaya meningkatkan orientasi wirausaha Usaha Mikro Kecil Menengah (UMKM) yang berada di dalam dan di sekitar lahan basah, dimana orientasi wirausaha tersebut dicirikan dengan daya inovasi, sikap proaktif dan perilaku pengambilan resiko yang menunjang bagi pertumbuhan dan perkembangan usaha masyarakat. Pengukuran dan analisis menggunakan metode kuantitatif deskriptif berdasarkan distribusi frekuensi indikator tahap pre-test dan post-test. Hasil analisis menunjukkan semua elemen orientasi wirausaha pengrajin purun meningkat setelah delapan minggu sejak dilaksanakannya pelatihan dimana skor daya inovasi meningkat dari skor 2.19 menjadi 3.04, sikap proaktif meningkat dari skor 2.65 menjadi 3.28, dan perilaku pengambilan resiko meningkat dari skor 2.07 menjadi 2.47. Dengan demikian orientasi wirausaha sangat membantu para wirausaha pengrajin purun dalam meningkatkan daya saing berkelanjutan, serta meningkatkan kepercayaan, kepuasan dan loyalitas pelanggan yang pada akhirnya akan meningkatkan kinerja usaha baik kinerja finansial berupa laba usaha, maupun kinerja strategis seperti peningkatan andil pasar, dan segmen pasar.  Kata kunci: Orientasi wirausaha;  Usaha Mikro Kecil Menengah (UMKM);  Kelestarian lingkungan; Keberlanjutan ekonomi-sosial-ekonomi lahan basah
Pengaruh E-Customer Satisfaction Dan E-Customer Trust Terhadap Online Repurchase Intention Pada Marketplace Shopee
Authors: Andriansyah  , Dayat Ikhsan H
Published: December 2024

Abstract: The purpose of this final project is to find out whether E-Customer Satisfaction and E-Customer Trust affect the Online Repurchase Intention or the intention to repurchase Shopeeconsumers. In this study the authors used quantitative research methods. The sampling techniqueused is purposive sampling with a sample of 385 people obtained based on the Rao Purba formulabecause the total population is not known with certainty. Data collection techniques using onlinequestionnaires through google forms that have been tested for validity and reliability. The dataanalysis technique used is the classical assumption test, multiple linear regression analysis, andhypothesis testing with SPSS version 25 software.The results of this study indicate that e-customer satisfaction (X1) has a tcount value of10,557, where the tcount value is greater than the ttable value, which is 1,966 with a significancevalue of 0.000 <0.05, which means that e-customer satisfaction has a positive influence and alsosignificant to Online Repurchase Intention. E-trust (X2) has a tcount value of 5.846, where the ttablevalue is 1.966 with a significance value of 0.000 <0.05, which means that e-customer trust has apositive and significant influence on Online Repurchase Intention. The Fcount value obtained is402,384, where the Fcount value is greater than the Ftable value, which is 2.62, which means thate-customer satisfaction and e-customer trust together have a positive and significant effect on OnlineRepurchase Intention
Adaptasi Model UTAUT2 pada Penggunaan Teknologi QRIS di Samarinda
Authors: Rezki Aguswidya Utami  , Sarah Anistia
Published: December 2024

Abstract: This research aims to analyze the factors influencing the intention and behavior of adopting Quick Response Indonesian Standard (QRIS) technology among consumers of Donutmoo.id in Samarinda. The Unified Theory of Acceptance and Use of Technology 2 (UTAUT2) adaptation model serves as the theoretical framework for this study. Using a quantitative approach, this research focuses on Donutmoo.id customers who utilize QRIS technology for their transactions. Data collection was carried out by distributing online questionnaires. Non-probability sampling with the quota sampling method is used to take the required number of respondents. This study included 153 participants. Partial Least Square (PLS) with SmartPLS 3.0 software was used for data analysis. The result of this research shows that positive influence of performance expectancy, effort expectancy, social influence, hedonic motivation, price value, behavioral intention towards use behavior. One variable does not show significant value, namely social influence
ANALISIS PENGARUH MOLASES DAN LAPISAN TANAH SEBAGAI CO-FACTOR TERHADAP OPTIMASI PENGOMPOSAN LIMBAH NANAS (ANANAS COMOSUS)
Authors: Viareco Hariestya , Bemis Restina , Puspitasari Ratih Dyah , Pratiwi Nurul , Adriansyah Endi
Published: December 2024

Peningkatan produksi nanas sebagai komoditas di Desa Tangkit Baru sejalan dengan meningkatnya limbah nanas yang dihasilkan. Mengubah limbah nanas menjadi pupuk kompos merupakan solusi yang tepat untuk masyarakat Desa Tangkit Baru. Namun, mengingat karakteristik limbah nanas yang cenderung asam, diperlukan upaya lebih lanjut dalam proses pengomposannya. Penelitian ini menggunakan larutan molases dan lapisan tanah sebagai co-factor untuk mengoptimalkan proses pengomposan limbah nanas. Penggunaan larutan molases terbukti dapat meningkatkan unsur hara dalam kompos, terutama C-organik yang mencapai 54%, sedangkan lapisan tanah membantu mempertahankan kadar air dan mempercepat proses pengomposan. Proses pengomposan limbah nanas berlangsung selama 13 hari untuk mencapai kompos yang matang dengan parameter pH, suhu, dan kelembaban yang optimal. Larutan molases dan lapisan tanah memiliki potensi untuk meningkatkan efisiensi pengomposan limbah nanas, menghasilkan kompos berkualitas tinggi. Namun, pemilihan co-factor perlu diperhatikan dengan rasio yang tepat agar kualitas kompos dapat maksimal dengan proses yang lebih efisien.
PENGARUH EMISI DARI KEGIATAN INDUSTRI MANUFAKTUR TERHADAP KUALITAS UDARA (PM2.5, PM10, BLACK CARBON DAN ORGANIC CARBON) DI KOTA TANGERANG
Authors: Pratama Achmad Sandy , Permadi Didin Agustian
Published: December 2024

Industri manufaktur memiliki potensi untuk menghasilkan emisi melalui tahap produksinya yang memanfaatkan energi dari bahan bakar fosil. Besarnya jumlah polutan yang terkeluarkan dari lingkungan industri juga dapat bervariasi tergantung pada jenis dan kapasitas bahan bakar yang dipakai, serta tinggi rendahnya cerobong asap yang diterapkan oleh pabrik tersebut. Penelitian ini menyajikan inventarisasi emisi partikulat PM2.5, PM10, Black Carbon, dan Organic Carbon dari sektor industri manufaktur di Kota Tangerang pada tahun 2022. Menggunakan alat analisis ABC-EIM, penelitian ini berfokus pada sumber konsumsi bahan bakar, point source, dan proses produksi industri manufaktur. Hasil menunjukkan beban emisi partikulat yang signifikan dari sumber konsumsi bahan bakar dan proses produksi logam. Total beban emisi point source adalah sebesar 62 ton/tahun. Kemudia hasil pemodelan AERMOD pada pola penyebaran emisi di sekitar kawasan industri manufaktur dengan kontribusi konsentrasi partikulat sebesar 3% (PM2.5) dan 16% (PM10) oleh industri manufaktur terdekat dengan stasiun pemantauan Tangerang Pasirjaya.
PERANCANGAN KEMASAN INDUSTRI OTOMOTIF BERKELANJUTAN UNTUK MENJAGA LINGKUNGAN
Authors: Adriyanti Aissyah Lathifah , Sahroni Taufik Roni
Published: December 2024

Aki mobil memiliki pasar yang luas dan diterima dengan baik oleh konsumen. Dengan umpan balik positif dari konsumen, industri otomotif berusaha meningkatkan kualitas produknya, yaitu kemasan. Tujuan dari penelitian ini adalah untuk menciptakan desain yang meningkatkan kepuasan pelanggan di industri otomotif, sehingga perusahaan dapat meningkatkan penjualan dan memperluas segmen pasar melalui tingkat kepuasan pelanggan. Penelitian ini menerapkan Desain Berbantuan Komputer 3D (CAD) dan melakukan Analisis Keberlanjutan kemasan berbahan corrugated paper menggunakan SolidWorks 2021 untuk menjaga lingkungan. Kriteria desain mengutamakan bahan ramah lingkungan, ergonomi, daya tahan, keandalan, dan kemudahan penggunaan. Secara keseluruhan, studi ini merekomendasikan penggunaan corrugated paper untuk kemasan aki mobil di industri otomotif. Corrugated paper terbukti sebagai bahan yang ramah lingkungan dan berkelanjutan yang memberikan perlindungan yang sangat baik bagi aki mobil dan mudah untuk ditangani dan digunakan. Hasil yang diperoleh dengan desain baru ini lebih baik daripada desain sebelumnya atau yang sudah ada.
Pengaruh Media Social Marketing dan Electronic Word of Mouth Positif Terhadap Keputusan Memilih Politeknik Hasnur Dengan Brand Trust Sebagai Variabel Intervening
Authors: Mariyam  , Nadila Deryza Syofrin  , Marhusin
Published: December 2024

Abstract: This research aims to test and determine the direct and indirect influence between Social Media Marketing and positive electronic Word of Mouth on the decision to choose Politeknik Hasnur with Brand Trust as an Intervening Variable. This research uses quantitative research methods with an explanatory type and uses the SmartPLS data analysis method. by collecting data by distributing questionnaires to second semester and fourth semester Politeknik Hasnur students who are still active and residing in South Kalimantan with a sample of 171 respondents. The results of this test prove that Social Marketing Media has a significant influence on the decision to choose Politeknik Hasnur, positive electronic Word of Mouth has a significant influence on the decision to choose Politeknik Hasnur and Brand Trust as an intervening variable also has a significant influence on students' decisions in choosing Politeknik Hasnur
 Keywords: Media Social Marketing, Electronic Word of Mouth, Brand Trust,  Decision
Improving Insider Threat Detection from Irregular Login Patterns with Metaheuristic Optimised AdaBoost
Authors: Jovanovic Luka , Spalević Žaklina , Bacanin Nebojsa , Simić Milan , Marković Filip
Published: December 2024

Continuing process of changing cyber security landscape demands constant adaptability to maintain secure and safe systems’ operation. With changing attack vectors constantly being developed, it is essential to act preemptively to maintain desired levels of security. A major challenge in modern systems, and a target for many malicious actors, is the human factor of the system. Insider threat is a critical cybersecurity concern. It is difficult to detect and identify it. Insider threat can cost companies millions of dollars in damage. We have investigated utilization of machine learning (ML) for insider threat detection, from irregular login behaviors of users. A specially tailored version of crayfish optimization algorithm (COA) is proposed and applied to hyperparameter tunning of AdaBoost models to ensure favorable performance. Simulations, conducted on publicly available data, with a majority of normal users’ activities, showcases the versatility of models, optimized by the introduced modified algorithm. The best models are attaining accuracy of 94.6128%. Modified algorithm demonstrates adaptive convergence capable of avoiding local minima and finding more favourable solutions. The best models have also undergone Shapley additive explanation (SHAP) analysis to identify the key features and their contributions to model decisions.
Origins and Unification of the Four Fundamental Forces of Nature
Authors: Liu Shangqing
Published: December 2024

The four fundamental forces of nature are extremely important because they dominate the formation and evolution of the universe. However, until now, their physical origins and essential qualities have not been explained with wide acceptance. This paper provides new explanations for the origins and essences of these four forces based on different understandings, suggesting that all four fundamental forces originate from the electric force and can therefore be unified as one force. First, the gravitational force is a synthetic electric force produced by a huge number of electric charges via non-uniform charge distribution. Based on a novel inference of nuclear structure, which is strongly supported by observed phenomena, the strong and weak forces are also deduced to be electric forces. These newly introduced understandings can explain observed confusing phenomena simply and effectively, such as “dark matter,” “dark energy,” “flat galaxies,” “filamentary nebulae,” and “gamma-ray bursts” in nuclear fission or fusion and from black holes, and so on. The author presents these new understandings in an effort to find the natural truth sooner.
The Fastest Motion of an Object in a Curved Earth Tunnel — Revisiting the Earth Tunnel Problem Using Python Visualization Toolkit
Authors: Fang Ning , Liang Chengtian
Published: December 2024

This paper discusses the problem of the fastest motion of an object in a curved earth tunnel. By establishing a mathematical model and applying the Python visualization toolkit, the analytical expression of steepest descent line is derived, and the physical meaning of the integral constant C is analyzed . The study found that under certain conditions, a curved tunnel can provide a shorter travel time than a straight tunnel, which challenges intuitive cognition . At the same time, this research method that combines mathematical software and physical models can help students better expand their thinking about physical models, making complex expanded physical models easy to understand and master.
Novel Technology for the Preparation of Nanoparticles to Increase the Solubility and Bioavailability of Hydrophobic Molecules
Authors: Frank Nicolette , Dickinson Douglas , Liu Yutao , Yu Hongfang , Cai Jingwen , Hsu Stephen
Published: December 2024

It is estimated that 70–90% of drug candidates at the development stage are hydrophobic, with poor water solubility. Examples of hydrophobic drug candidates include quercetin, cannabidiol (CBD), tetrahydrocannabinol (THC), retinoic acid, tocotrienols, and ivermectin. This physical property can limit the development of these molecules for new drug use, and may be associated with low bioavailability, reduced therapeutic effects, and increased dosage that could cause un-wanted adverse effects. Background: In previous work, we developed a novel Facilitated Self-assembling Technology (FAST for short) with several specific practical methods. The major advantage of FAST is that the hydrophobic compound is not engineered nor encapsulated, and there is no addition of lipid, surfactant, or metal component. The nanoparticles prepared using this technology are highly hydrophilic and stable. This nanotechnology would allow many drug candidates to be developed with increased solubility and bioavailability in their own nanoparticle form. Objectives: The purpose of the current study is to use three practical methods of FAST to prepare water nanosuspensions of several known poorly soluble drug candidates. Methods: ZetaView nanoparticle tracking analysis and electron microscopy imaging. Results: The results demonstrate that this novel nanotechnology is able to generate stable and water-soluble nano-particles of these compounds, which could be used in new drug development or reformulate and improve the solubility and bioavailability of currently used drugs.
Extraction of Carotenoid from Pumpkin (Cucurbita moschata) and Spinach (Spinacia oleracea) Using Environmentally Friendly Deep Eutectic Solvents (DESs)
Authors: Tanrıver Koray , Bilgin Mehmet , Şahin Sevgili Selin , Toprakçı Yüksel İrem , Kurtulbaş Şahin Ebru
Published: December 2024

The annually wasted amount of food had surpassed 1 billion metric tons. Food waste is considered as an important source for recovery of bioactive compounds, such as carotenoids. There is a demand for antioxidants, nutraceuticals and natural colorants in various industries and carotenoids are one of the commonly used compounds which fit with this description. Pumpkin and spinach waste, whose combined amount is over 2 million metric tons, contains bioactive compounds and these wasted foods could be utilized for recovery of carotenoids. Carotenoids are hydrophobic molecules; therefore, commercial extraction processes often use highly non-polar solvents, and these are rarely environmentally friendly. The aim of this research was to develop effective extraction processes for carotenoids from pumpkin and spinach using environmentally friendly green chemicals. A series of deep eutectic solvents (DESs) composed with L-menthol and carboxylic aliphatic acids were made for extraction of carotenoids from pumpkin (Cucurbita moschata) and spinach (Spinacia oleracea) via mechanical mixing assisted extraction (MMAE) and homogenization assisted extraction (HAE). Response surface methodology (RSM) and analysis of variance (ANOVA) analysis were used to analyze the data and optimization. The DESs composed from L-Menthol and Propionic Acid had the best effect on the extraction of total carotenoid content (TCC) (represented as ß-Carotene) from pumpkin and spinach via solutions with 1:2 and 1:4 molar ratios, respectively. The yield of carotenoid extraction is expressed in μg-ß-Carotene/g of pumpkin or spinach. Under the calculated optimum conditions, the yields are estimated to be 11.528 μg-ß-Carotene/g-pumpkin for MMAE method, 8.966 μg-ß-Carotene/g-pumpkin for HAE method, 16.924 μg-ß-Carotene/g-spinach for MMAE method and 18.870 μg-ß-Carotene/g-spinach for HAE method.
The Black Hole Mass-Gap and its Relation to Bekenstein-Hawking Entropy Leads to Potential Quantization of Black Holes and a Minimum Gravitational Acceleration in the Universe
Authors: Haug Espen
Published: December 2024

We demonstrate that black holes likely have an energy or mass gap, E_g/c^2=m_g, that is of the order m_g = m_p^2/M_BH. Interestingly, the mass of the black hole divided by the mass gap seems closely related to the Bekenstein-Hawking entropy and thereby potentially leads to a quantization of black holes. Even if mathematically trivial, this could be a potentially important step toward better understanding the potential to quantize black holes. Our focus is mainly on Schwarzschild black holes, but we also briefly discuss Reissner-Nordström black holes. It is also important that this results in minimal gravitational acceleration, creating a gravitational gap that could potentially eliminate dark matter.