bluuebunny/crossref_metadata_2025 huggingface dataset:
AI-driven solutions for low back pain: A pilot study on diagnosis and treatment planning
Authors: Neto Agrinazio Geraldo Nascimento , Herrera Sávia Denise Silva Carlotto , Moura Rodrigo , Cielo Graciele Moura , Pegoraro Fábio , Lira Valmir Fernandes de , Paiva Maykon Jhuly Martins de , Rosa Carlos Gustavo Sakuno , Alves Rafaela Carvalho , D’Alessandro Walmirton Bezerra
Published: August 2024

Low back pain (LBP) mainly affects the working-age population, and few specific causes can be identified, making diagnosis difficult and rendering them nonspecific. Artificial intelligence (AI) can be a great ally for prognosis, diagnosis, and treatment plans in healthcare. To describe the development of software aimed at providing prognoses, diagnoses, and treatment suggestions for LBP with AI support, as well as to report the functionality and initial limitations through a pilot study. Fifty assessment records from a database of patients at the Physiotherapy School Clinic of the University of Gurupi-UnirG, who were treated for LBP, were analyzed. Using data mining, including information described by patients and post-processing of discovered anamnesis patterns (rules), it was possible to develop software for evaluation and intervention in this patient group. Subsequently, a pilot study was initiated with 34 patients residing in the city of Gurupi-TO to test the application’s functionality. The software enabled more accurate treatments, diagnoses, and prognoses during the pilot study, directing the patient towards physiotherapeutic intervention based on the presented condition.
Pengaruh Model Pembelajaran Group Investigation (GI) terhadap Kemampuan Berpikir Kritis Siswa Kelas X di MAN 1 Lombok Timur Tahun Pelajaran 2022/2023
Authors: Hidayati Izzah , Ariandani Nunung , Asri Indra Himayatul
Published: August 2024

Siswa kelas X di MAN 1 Lombok Timur memiliki kemampuan berpikir kritis yang rendah. Model pembelajaran Group Investigation (GI) untuk membantu siswa kelas X dalam berpikir kritis. Jenis penelitian kuantitatif, metode eksperimen, rancangan Quasi Experiment NonEquivalent Control Group Design, teknik random sampling, instrumen pengumpulan data menggunakan instrumen berpikir kritis Ennis, tes esai. Hasil analisa data menunjukkan thitung (2.15) > ttabel (1.67). Siswa aktif, komunikatif, dan kolaboratif saat proses pembelajaran. Penelitian berhasil menunjukkan ada pengaruh model pembelajaran Group Investigation (GI) terhadap kemampuan berpikir kritis siswa kelas X di MAN Lombok Timur Tahun Pelajaran 2022/2023.
Formulasi Sediaan Sabun Cair Ekstrak Daun Ramania (Bouea macrophylla Griffith) sebagai Antiseptik
Authors: Mahdi Nur ,   Universitas Lambung Mangkurat, Rezekiah Rezekiah ,   STIKES Darul Azhar Batulicin, Ani Agustina ,   STIKES Darul Azhar Batulicin
Published: August 2024

Ramania leaves (Bouea macrophylla Griffith) are natural ingredients that have activity as an antiseptic. Ramania leaves contain flavonoids, alkaloids, steroids and tannins. This study aims to make antiseptic liquid soap from ramania leaf extract with a concentration of 5%, 10%, 15%. This study used experimental methods in the laboratory. three formulations were made (FI, FII, FIII with a concentration of 5%, 10%, 15%). Evaluation includes organoleptic, homogeneity, pH, specific gravity, foam height. Antiseptic test was carried out using the zigzag method. he antiseptic test was carried out using the replica method. The statistical test for evaluating preparations is One Way Anova, for antiseptic testing using Paired sample t-test. The results of several evaluations have met the requirements, except that the specific gravity does not meet the SNI criteria. The antiseptic test is indicated by the percentage of bacterial reduction. The percentage of bacterial reduction in FI, II, and III respectively was 40.5; 48.5; and 57.5%. It can be seen that increasing the extract concentration can reduce the number of bacterial colonies. The results of the One Way Anova statistical test (a = 0.05) showed that there was no difference in the results of the preparation evaluation, the results of the paired sample test (a = 0.05) showed a significant difference in the antiseptic test. Based on the results of research on the specific gravity test however all formulas do not meet the criteria. In the antiseptic test, all formulas were effective in inhibiting bacterial growth.
Telaah Potensi Antivirus Mitraginin terhadap Protease 3CLpro SARS-CoV-2 dengan Pendekatan Molecular Docking
Authors: Setiawansyah Arif ,   Akademi Farmasi Cendikia Farma Husada, Susanti Gita ,   STIK Siti Khadijah, Hidayati Nurul ,   Akademi Farmasi Cendikia Farma Husada, Gemantari Baiq Maylinda ,   Universitas Hamzanwadi, Alrayan Reza ,   Institut Ilmu Kesehatan Bhakti Wiyata, Hadi Ismanurrahman ,   Universitas Muhammadyah Cirebon, Luthfiana Dewi ,   Nagoya University, Hasanah Nurul ,   Universitas Lampung
Published: August 2024

SARS-CoV-2 is a novel coronavirus identified as a major caused of COVID-19. COVID-19 can be prevented and managed by preventing the SARS-CoV-2 infection through inhibition of SARS-CoV-2 main protease. Mitragynine is one of the major compounds found in Mitragyna speciosa leaves that has the potential to be developed as an anti-COVID-19 agent. This research was implemented to evaluate that potential by observing the molecular interaction of mitragynine with the essential amino acid residues of SARS-CoV-2 3CLpro. The study was undertaken by in silico method via molecular docking approach using Autodock 4.2. The potential of mitragynine in inhibiting the SARS-CoV-2 main protease was justified based on its free binding energy and Ki. The result revealed that mitragynine exhibited a lower free binding energy and Ki than remdesivir with the free binding energy and Ki value of -7.80 kcal/mol dan 1.92 µM dan -7.41 kcal/mol dan 3.72 µM, respectively. This concluded that mitragynine has the potential as a SARS-CoV-2 main protease inhibitor with the affinity was better than remdesivir. However, further in vitro research must be carried out to prove this potential.
Aplikasi Simplex Lattice Design untuk Optimasi Emulgator dalam Krim Minyak Atsiri Kulit Jeruk Manis
Authors:   Universitas Jambi, Pratiwi Puspa Dwi , Arnas Deah Lestiana ,   Universitas Adiwangsa Jambi
Published: August 2024

In order to obtain a perfect emulsified and stable preparation, choosing the right composition emulsifier is crucial. Formula optimization is needed to determine the best combination of ingredients in formulation process based on evaluation responses. Simplex Lattice Design (SLD) is an experimental design method for mixing materials with the proportion of the total number of materials 1 or 100%. This research was aims to obtained the optimal cream formula using tween 80 and span 80 as emulsifiers and determined their effect on the physical properties of cream preparation. SLD method was used as optimization method with tween 80 and span 80 as independent variables and pH, viscosity, spreadability, and stickiness as responses. The minimum limit for tween 80 and span 80 is 1% (w/v) and the maximum is 9% (w/v) with total 10%. The optimal formula was obtained from consideration of the response by entering the target value to obtain a formula with desirability value close to 1. There are 5 formulas based on SLD recommendations, with a concentration ratio of tween 80 and span 80 9:1 (run 1); 7:3 (run 2); 1:9 (run 3); 5:5 (run 4); and 3:7 (run 5). The relationship between concentration and response value can be explained based on the significance of the model and equations obtained. The optimal formula was the concentration ratio of tween 80 and span 80 8.6:1.34 with a desirability value of 0.953. The conclusion of this research was that SLD can be used to optimize the emulsifier with response predictions close to the results obtained.
Enhancement of solar energy utilization through an artificial neural network controller featuring a dynamic learning rate and a positive output super lift luo converter
Authors: Kasim Ali Mohammad  , Sarhan M. Musa
Published: August 2024

With the increasing demand for sustainable energy solutions, enhancing the efficiency of photovoltaic (PV) systems is critical. PV systems, although effective, often face efficiency variations due to changes in irradiance and temperature. This study aims to address these challenges by integrating a Positive Output Super Lift Luo (P/O SLL) converter with an Artificial Neural Network (ANN) controller utilizing a dynamic learning rate. Known for its high voltage conversion gain, the P/O SLL converter is ideal for various load requirements in PV systems. The ANN controller with a dynamic learning rate adapts to real-time environmental changes, outperforming static learning rate methods. This approach allows the ANN to manage non-linear and variable inputs from PV cells more efficiently, optimizing the Maximum Power Point Tracking (MPPT) process. The research involved simulating a PV system model using MATLAB/Simulink, integrating the P/O SLL converter and ANN controller. The study compared the performance of the ANN controller with a dynamic learning rate against a static learning rate, using 201 data samples for training. The results showed improvements in energy conversion efficiency, with the dynamic learning rate providing more stable voltage and power outputs under varying conditions, demonstrating its potential in enhancing PV system performance.
The effect of exchange rate fluctuation on households’ purchasing power in Nigeria (2000 – 2022)
Authors: Abdullahi Umar Nasiru  , Paschal Chimezie Igbokwe  , Achief Godsent Osimokha  , Nweze Gift Ifeyinwa  , Dorcas Udo  , David Charles Enweonwu
Published: August 2024

The study investigated the effect of exchange rate fluctuation on household’s purchasing power in Nigeria between 2000 and 2022. While E-views student version 12 statistical software was employed in computing the result, time series data used in this study was sourced from the World Development Indicators Database (WDI). The econometric techniques used in the analysis were: The Unit Root Test, Johansen Co-Integration Test, Vector Error Correction Model. The Johansen cointegration results confirm that the variables are cointegrated, highlighting a long-run relationship among the variables. Furthermore, the result revealed that the exchange rate has a negative and statistically significant impact on GDP per capita at a 5 percent significance level. Based on the findings, the study recommended that the government adopt policies and strategies that would enable them to strengthen the value of Nigerian currency (naira) in the foreign exchange market and ensure exchange rate stability is maintained with other foreign currencies. However, a stable exchange rate can positively impact households’ purchasing capacity by reducing inflationary pressures and ensuring that imported products remain affordable.
Laser and mechanical micro-drilling for aerospace applications
Authors: Oghenefegor Favour Ugbine  , Odion Beston Akhabue  , Philip Onyinye Blessing  , Adeniran-Bakare Silifat Mobisayo  , Joshua Ojochegbe Egbunu  , Victor Osigbemeh Dauda  , Agbonze Nosa Godwin
Published: August 2024

Traditional laser percussion drilling encounters challenges related to poor geometry and thermal defects. At the same time, mechanical micro-drilling while generating high-quality holes, faces issues such as premature drill breakage and difficulty drilling at acute angles. This review paper introduces a novel approach to micro-drilling Inconel 718 alloy sheets at acute angles by combining sequential laser and mechanical drilling. The study showcases the feasibility and fundamental characteristics of this innovative technique. Results indicate that the sequential laser-mechanical micro-drilling approach mitigates the drawbacks associated with laser-drilled holes, leading to reduced burr size, decreased machining time, and increased tool life when compared to conventional mechanical drilling methods. This advancement holds promise for enhancing precision and efficiency in aerospace applications, paving the way for improved manufacturing processes in the aerospace industry.
Exploring self-harm: A narrative review of socio-cultural factors
Authors: Venkatesan S
Published: August 2024

This narrative review explores the socio-cultural factors influencing self-harm behaviors by synthesizing insights from 75 publications across diverse themes, including media, culture, religion, nations, and ethnicity. By examining secondary data, this review highlights how cultural perceptions and societal norms shape individuals' experiences with self-harm. It reveals that in some cultures, self-harm may be interpreted as a form of expression or resistance, while in others, it is stigmatized and misunderstood. The role of media is critically analyzed, showcasing its dual capacity to both normalize self-harming behaviors and provide platforms for support and awareness. Additionally, the review investigates how religious beliefs and practices can influence self-harm, either by offering frameworks for understanding distress or exacerbating feelings of guilt and shame. Ethnic variations in the experience and reporting of self-harm are also discussed by emphasizing the need for culturally sensitive approaches in mental health care. This comprehensive review underscores the importance of considering socio-cultural contexts when addressing self-harm, advocating for tailored interventions that resonate with individuals' backgrounds. Ultimately, it aims to enhance understanding and inform more effective, compassionate responses to self-harm as a significant public health concern.
Geospatial analysis of the impact of abattoir activities in Karu, Abuja, Nigeria
Authors: Elizabeth Rizga Jackson  , Felix Ndukson Buba  , Vivian Aaron Ibrahim  , Epsar Philip Kopteer  , Udya Aniya  , Kamila Abba Tukur  , Augustine Abah Odeh  , Sumaiyat Kpanja Abdullahi  , Binta Ahmad  , Jibatswen Agbutsokwa Hosea  , James Adah John
Published: August 2024

Meat is a worldwide staple food item obtained mostly from animal farms after killing and preparation in abattoirs or slaughter houses, and it has played a significant role in human ill-health and death due to the intake of improperly processed and unwholesome meat. Abattoir operations generate numerous waste and microbial organisms that pollute the environment. This poses serious threat to human health and quality of life. Most abattoirs in Nigeria are characterized by poor design, obsolete facilities and a deteriorating environment. The challenges posed by Karu abattoir activities and management of its residential neighborhood have become a source of concern. This study aims to analyze the impact of abattoir activities in Karu, Abuja, Nigeria with the specific objectives to assess the effects of Karu abattoir activities on its residential neighborhoods and to determine the level of compliance to regulations for establishing abattoirs. A descriptive cross-sectional study was conducted using a semi-structured, interviewer-administered questionnaire. Eighty (80) households within the abattoir neighborhoods were interviewed. Data obtained were analyzed using the statistical software for social sciences (SPSS). Water sample was collected and analyzed in the laboratory and air quality was also collected through the European Center for Medium Range Weather Forecast database and the area of interest was extracted using ArcGIS 10.8 software. The average mean value of the pollutant shows Sulfur dioxide (SO2) being the highest pollutant in the atmosphere around the study area both during dry and wet seasons with values of 2.53m/cm3 and 1.49m/cm3 respectively. Nitrogen monoxide (NO) is the lowest pollutant in the atmosphere having values of 1.68m/cm3 and 0.36m/cm3 respectively. The presence of coliform in the well water at the study area provides evidence of recent faecal contamination. More than half (53.7%) of the respondents reported that there is an inadequate water supply facility and sourced their water from the tap (64.6%) and disposed of their waste water in the nearby stream. More than two-thirds (77.6%) of the abattoir workers reported that there are adequate veterinarians and other health officers and a routine post-mortem examination is adequate in the abattoir. The study showed that the abattoir lacks infrastructure and compliance with slaughter practices and regulations.
A review on selected herbal plants used in treatment of Rheumatoid arthritis
Authors: Pratibha Shivaji Gavarkar  , Rajashree Sunil Chavan
Published: August 2024

The immune system ailment rheumatoid joint pain (RA) principally influences the joints and is persistent (durable). At the point when the body's safe reaction, which frequently supports shielding the body against ailment and contamination, focuses on its own tissues, RA results. Joint uneasiness, edema, strength, and decrease in capability are side effects of the condition. There is a lengthy tradition of using herbal remedies and their formulations to cure illnesses in people. It has long been believed that herbal extracts can provide novel, practical medications. Approximately 62% of pharmaceuticals that are sold commercially have natural product origins, according to Cragg's research. Remorsefully, flow clinical information for the most part tends to the illness' side effects that is, joint agony and irritation and there is still no demonstrated successful prescription to treat rheumatoid joint inflammation. The aggravation and irritation in the joints can be diminished by involving spices and plants in various ways. Anti-rheumatoid arthritis properties have been demonstrated for a variety of therapeutic herbs. Subsequently, rheumatoid joint inflammation is treated with plants and plant items that offer striking advantages. The restorative plants with hostile to rheumatoid joint pain activity are the primary subject of this audit.
Prevalence and histological features of Helicobacter pylori in patients underwent Esophageogastroduedenoscopy
Authors: Ahmed Al-Saadi  , Said A Al-Busafi  , Andreas Veihelmann
Published: August 2024

Helicobacter pylori (H. pylori) are gram-negative bacilli and a common chronic bacterial infection in humans, linked to chronic gastritis, gastric and duodenal ulcers, and stomach cancer. This study aimed to determine the prevalence of H. pylori infection among symptomatic patients undergoing their first Esophagogastroduodenoscopy (EGD) at Sultan Qaboos University Hospital (SQUH), examining its distribution across different age and gender groups, and identifying related histological findings, comparing results with other Middle Eastern countries. A cross-sectional study was conducted at SQUH which includes all symptomatic adult outpatients underwent first time EGD between Jan 2015 to Jan 2016. Histology test was used to investigate the histopathological features associated with H. pylori infection. Appropriate statistical tests were used for comparison and analysis of the data. A total of 170 symptomatic patients were included in this study. Among those symptomatic patients, 49.4% (n=84) were males, whereas, 50.6% (n=86) were females. The prevalence of H. pylori infection was 45.3% (n=77/170). The distribution of H. pylori infection among males was 42.9% (n=36/84) compared to females 47.7% (n=41/86). The highest frequency of infection was among 50-59 and >60 age groups (20 patients), whereas, the lowest was among <29 age group (6 patient). Chronic gastritis was the highest histopathological features present in patients with H. pylori infection 76.62% (n=59). This study shows that females and older age groups had the highest prevalence of H. pylori infection compared to the other groups. It shows also that the prevalence of H. pylori infection was lower than other Middle East countries.
Formulasi Dan Stabilitas Sediaan Serum Dari Ekstrak Rimpang Kunyit (Curcuma domestica Val.) Sebagai Antioksidan
Authors: Anggita Gini , Nurhayati Ghina Siti
Published: August 2024

Kunyit (Curcuma domestica Val.) merupakan salah satu sumber antioksidan karena adanya kandungan kurkumin yang dapat diformulasikan dalam sediaan serum. Serum merupakan sediaan dengan zat aktif konsentrasi tinggi dan viskositas rendah, yang menghantarkan film tipis dari bahan aktif pada permukaan kulit. Tujuan penelitian adalah untuk mengetahui formulasi dan stabilitas sediaan serum dari ekstrak rimpang kunyit (Curcuma domestica Val.) sebagai antioksidan. Penelitian yang dilakukan berjenis penelitian eksperimen yang dilakukan secara in vitro menggunakan metode DPPH (1,1-difenil-2-pikrilhidrazil). Serum dibuat dengan zat aktif ekstrak rimpang kunyit pada konsentrasi 10%, 20% dan 30% yang kemudian dievaluasi sediaan dan diuji aktivitas antioksidan menggunakan metode DPPH. Hasil penelitian menunjukkan bahwa ekstrak rimpang kunyit (C. domestica) dapat diformulasi menjadi sediaan serum yang evaluasi fisik memenuhi persyaratan yaitu memiliki organoleptik yang baik, homogen, pH dalam rentang kulit wajah, daya sebar yang baik (6-7 cm), daya lekat yang baik (> 1detik) dan tidak menimbulkan iritasi. Aktivitas antioksidan ekstrak rimpang kunyit yaitu nilai IC50 sebesar 248 ppm kategori antioksidan sedang. Nilai IC50 serum gel ekstrak etanol rimpang kunyit dengan konsentrasi 10% sebesar 282 ppm (kategori sedang), konsentrasi 20% (F2) sebesar 275 ppm (kategori sedang) dan konsentrasi 30% (F3) sebesar 268 ppm (kategori sedang).
 
Turmeric (Curcuma domestica Val.) Is a source of antioxidants due to the presence of curcumin which can be formulated in serum preparations. Serum is a preparation with a high concentration and low viscosity of the active ingredient, which delivers a thin film of the active ingredient on the skin surface. The aim of the study was to determine the formulation and stability of the serum from the extract of turmeric (Curcuma domestica Val.) As an antioxidant. The type of research was experimental research which was carried out in vitro using the DPPH (1,1-difenil-2-pikrilhidrazil) method. Serum is made with the active substance of turmeric rhizome extract at concentrations of 10%, 20% and 30% which are then evaluated and tested for antioxidant activity using the DPPH method. The results showed that the extract of turmeric rhizome (Curcuma domestica Val.) Can be formulated into serum preparations that meet the physical evaluation requirements, namely having good organoleptic, homogeneous, pH within the range of facial skin, good dispersion (6-7 cm), good adhesion (> 1sec) and does not cause irritation. The antioxidant activity of turmeric rhizome extract is the IC50 value of 248 ppm in the moderate antioxidant category. The IC50 value of turmeric rhizome ethanol extract serum gel with a concentration of 10% was 282 ppm (moderate category), a concentration of 20% (F2) was 275 ppm (moderate category) and a concentration of 30% (F3) was 268 ppm (moderate category).
Оценка технологической зависимости в российской и зарубежной практике
Authors: Кармина Р.Л. , Черченко О.В. , Ерёмченко О.А. , Куракова Н.Г. , Чернова И.Н.
Published: August 2024

Цель настоящего исследования – анализ показателей и индикаторов, используемых в России и за рубежом для оценки уровня достигнутого технологического суверенитета в период 1993–2023 гг. Рассмотрены российские и зарубежные подходы к оценке этого показателя. Так, применяемый в России «коэффициент технологической зависимости», рассчитываемый как отношение числа заявок на выдачу патента на изобретение, поданных в национальное патентное ведомство нерезидентами и резидентами страны, в мире практически не используется. Сопоставление коэффициента технологической зависимости, рассчитанного за 2013–2022 гг. для индустриально развитых стран и стран догоняющего развития, позволило сделать вывод об ограниченной пригодности этого показателя для мониторинга уровня технологического суверенитета страны.
История, проблемы и перспективы золотодобычи в Республике Тыва
Authors: Дабиев Д.Ф.
Published: August 2024

В статье рассматривается развитие золотодобывающей промышленности Республики Тыва в разные исторические периоды. Добыча золота, которая велась на территории Тувы с древнейших времен, впоследствии была практически утрачена и возобновилась лишь в середине XIX века. К началу же ХХ века здесь были открыты богатые золотоносные районы, разрабатываемые до сих пор. Во время становления Тувинской Народной Республики местные прииски разрабатывались хищническим путем. Однако с 1936 г. отрасль перешла под государственное управление. В советский период разведанные запасы и объемы добычи золота в республике значительно сократились, но началось активное геологическое изучение восточных районов республики, приведшее к открытию новых месторождений россыпного золота. Освоение последних началось уже на рубеже ХХ–ХХI вв. Дальнейшее развитие золотодобывающей промышленности связано с разработкой этих месторождений.
Fuzzy Logic Algorithm Optimization for Safe Distance Control on Arduino-Based Reverse Parking System and SRF04 Sensor
Authors: Choiri Achmad Firman
Published: August 2024

This research aims to develop a smart parking system that can accurately control the distance between vehicles and obstacles during reverse parking maneuvers. By integrating fuzzy logic algorithms into the system, this study seeks to improve the precision and reliability of distance control, thereby improving the overall safety of parking operations. The utilization of the Arduino platform and the SRF04 sensor allows real-time data processing and accurate distance measurement, i.e. this research contributes to the effectiveness of the proposed system. The application of fuzzy logic optimization in this context is expected to provide a powerful solution for safe reverse parking, offering potential benefits in terms of comfort and accident prevention in parking scenarios, especially for cars that still do not have obstacle detection sensors at the rear of the car
Identifikasi Mineral Liat Pada Lempung Bobonaro Di Area Disposal Tambang Mangan
Authors: Funay Chindy Mathelda Sartika , Ernawati Rika
Published: August 2024

Lempung Bobonaro termasuk dalam tanah ekspansif yang dapat mengembang dan menyusut sehingga mudah mengalami erosi. Permasalahan yang terjadi yaitu peningkatan erosi pada timbunan tanah penutup yang berasal dari hasil pembongkaran overburden yang didominasi oleh lempung Bobonaro. Erosi berkaitan dengan kemantapan agregat yang dipengaruhi oleh tipe mineral lempung. Penelitian ini hanya difokuskan pada jenis mineral sekunder atau mineral liat. Metode yang digunakan yaitu pengambilan sampel tanah secara random sampling sebanyak 3 titik pada lereng bagian atas, tengah dan bawah, identifikasi mineral lempung di laboratorium secara kualitatif menggunakan metode XRD (X-ray diffraction) dan perhitungan persentase komposisi setiap mineral secara semi kuantitatif dengan software Match. Dari hasil penelitian diperoleh mineral yang paling dominan adalah illit dengan rata-rata persentase sebesar 25.9%. Keterdapatan illit pada timbunan overburden berpengaruh terhadap kemantapan agregat sedang dan tidak stabil sehingga rentan terjadi erosi.
Studi Litofasies Desa Harapan Baru, Kecamatan Loa Janan Ilir, Kota Samarinda, Provinsi Kalimantan Timur
Authors: Putri Resty Intan , Fadillah Kharis
Published: August 2024

Lokasi penelitian terletak di Desa Harapan Baru, Kecamatan Loa Janan Ilir, Kota Samarinda. Pada geologi regional Cekungan Kutai, lokasi penelitian termasuk kedalam Formasi Pulaubalang dan Formasi Balikpapan. Tujuan dari penelitian yaitu untuk mengidentifikasi litofasies di lokasi penelitian dengan mengunakan pendekatan interpretasi tekstur dan struktur dari fisik batuan sedimen agar dapat diketahui variasi litofasies serta lingkungan pengendapannya. Pengambilan data difokuskan pada 4 stasiun pengamatan (ST) kemudian di analisis data litologi yang memiliki perbedaan fisik. Dari hasil analisis diperoleh 17 unit litofasies yaitu pada ST 1 ditemukaan litofasies batupasir bergradasi terbalik, litofasies konglomeratan, litofasies batupasir graded bedding, litofasies cross bedding, litofasies batulempung channel dan litofasies batupasir masif. Pada ST 2 didapatkan litofasies batupasir ripple mark, litofasies batulempung laminasi, litofasies  coaly shale, litofasies batubara menyerpih dan litofasies batupasir laminasi. Pada ST 3 didapatkan litofasies batupasir laminasi karbonatan, litofasies batulempung masif, litofasies batulempung lentikuler, litofasies batupasir flaser, serta pada ST 4 didapatkan litofasies batulempung masif, litofasies Batubara bloky, litofasies coaly shale, Litofasies batupasir laminasi dan litofasies batupasir masif berbioturbasi serta pada analisis lingkungan pengendapan ditemukaan  levee, channel, intertidal, crevasee splay, swamp dan interdistributary bay.
Studi Pengaruh Densitas Batu Pasir Terhadap Nilai Kuat Tekan Pada Formasi Pulau Balang, Di Daerah Kalimantan Timur
Authors: Suharni Suharni , Oktaviani Revia , Devy Shalaho Dina
Published: August 2024

Kuat tekan uniaksial (σc) adalah gambaran dari nilai tegangan maksimum yang dapat ditanggung sebuah contoh batuan sesaat sebelum contoh batuan tersebut runtuh (failure). Kuat tekan uniaksial digunakan untuk memilih metode pemberaian batuan pada kegiatan penambangan baik sistem tambang terbuka maupun bawah tanah apakah menggunakan metode peledakan atau menggunakan alat mekanis. Lokasi penelitian dilakukan pada tiga lokasi yang berbeda dengan formasi batuan yang sama. Lokasi pertama dilakukan pada lokasi penambangan batupasir tradisional milik warga setempat. Lokasi tersebut berada pada Tenggarong jalur 1 Jalan loa duri ilir, lokasi ke dua loa kulu, dan Lokasi ke tiga berada pada Jalan Kadrioning samarinda, tempatnya di pinggir jalan. Penelitian ini menggunakan metode kuantitatif, dengan melakukan perhitungan pada uji kuat tekan uniaksial untuk mendapat nilai kuat tekan dan uji fisik untuk mendapatkan nilai densitasnya.  Nilai densitas dari tiga lokasi Formasi Pulau Balang  jenis batu pasir loa duri berada pada rentan nilai 1,72gr/cm3 – 1,94gr/cm3, loa kulu yaitu 1,78gr/cm3–1,87gr/cm3 dan kadrioning 1,81 gr/cm3 – 1,91 gr/cm3.  Sedangkan nilai kuat tekan rata-rata loa duri 6,78 Mpa, loa kulu 6,33 Mpa dan kadrioning 2,98 Mpa. Hubungan antara densitas  terhadap hasil uji kuat tekan yang didapat, Semakin tinggi Nilai kuat tekan batu pasir maka nilai densitas batu pasir yang dimiliki akan ikut meningkat.
Optimalisasi Isian Bahan Peledak Terhadap Jarak Lokasi Peledakan Dengan Penempatan Alat Dalam Kegiatan Peledakan Di Dekat Low Wall Pit 9 Berdasarkan Nilai Peak Particle Velocity Pada Pt Alamjaya Bara Pratama
Authors: Hehanussa Michael Farissa Richardo , Nahumury Bevieano , Karapa Enos , Patabang Djuardrensi
Published: August 2024

Ground vibration is a wave that moves in the ground caused by the presence of an energy source. Ground vibration in detonation is caused by several things, one of which is the excessive use of explosives. Peak Particle Velocity is one of the criteria for determining the level of vibration that affects the Low Wall at the mine site.From ground vibration measurements from 02 – 26 September 2022 an analysis was carried out using the Blastware application. The result of the analysis is the equation for the relationship between PPV and scaled distance (SD), namely PPV = 18268.2 (SD)-1.725 with a data confidence level of 0.787 = 78% which states that the data can be trusted.The relationship formula equation between PPV and SD is then used to determine the maximum explosive charge and the safe distance for blasting activities based on PT. Alamjaya Bara Pratama. ground vibration standards.
Analisis Produktivitas Alat Gali Muat dan Alat Angkut Pada Pengupasan Lapisan Tanah Penutup (Overburden) Di Pt. Cahaya Riau Mandiri Kabupaten Lahat Provinsi Sumatera Selatan
Authors: Lase Agus Sudarman , Purnoma Hendro , Wardana Novandri Kusuma
Published: August 2024

PT Cahaya Riau Mandiri is a company engaged in coal mining that operates in Lahat Regency, South Sumatra Province with an open pit mining system. PT Cahaya Riau Mandiri has a production target of 70,000 tons/month in one shift. The purpose of this study is to determine the actual production of excavating and hauling equipment and the compatibility factor in coal mining, knowing the obstacles to effective working time in overcoming work obstacles that can be avoided so that loss time can be reduced and the resulting production can be achieved according to the company's target. The research method used in this research is quantitative and the stages in the preparation of this writing start from literature study, field observation, field data collection, data processing, data analysis, discussion and conclusions and suggestions. Based on the research and calculations that have been carried out, it is obtained that the actual production of the Liugong CLG952E excavator digging and loading equipment is 46. 522, 30 tons / month and the Iveco 682 dump truck conveyance is 44. 525, 25 tons / month with a compatibility factor of 0, 56. The strategy that can be done in increasing production is to improve work barriers, filling factors, tool compatibility and circulation time by using the basic work reference from the company. After improving the work of the Liugong CLG952E excavator and Iveco 682 dump truck transport equipment, the production of the Liugong CLG952E excavator increased from 46. 522, 30 tons / month to 70. 068, 54 tons / month and the Iveco 682 dump truck transport equipment increased from 44. 525, 25 tons / month to 70. 048, 21 tons/month.
Analisis Penurunan Muka Tanah (Subsidens) Menggunakan Metode Numerik Di Terowongan Endportal PLTA Kerinci Merangin, Provinsi Jambi.
Authors: Jawil Anshar Abdullah , Saputra Apriadi , Pontus Albertus Juvensius
Published: August 2024

Indonesia mempunyai banyak potensi energi baru terbarukan, seperti tenaga air, panas bumi, biomassa, tenaga bayu dan surya yang bersih dan ramah lingkungan. Salah satu potensi energi baru terbarukan yaitu PLTA Kerinci Merangin yang berada di kabupaten kerinci, provinsi jambi. Pada konstruksinya PLTA ini menggunakan terowongan sepanjang 12 km sebagai jalur air (waterway) dengan beda elevasi awal terowongan sampai akhir terowongan End Portal adalah 400 meter dan ditargetkan akan menghasilkan tenaga listrik berkapasitas 350 MW (4 X 87,5 MW). Salah satu permasalahan yang di hadapi adalah terowongan merupakan terowongan dangkal (burden ± 35 M), dengan massa batuan yang terkekarkan (jointed rock). Kompleksitas yang terjadi di terowongan Endportal tersebut sangat memungkinkan terjadinya subsidens. Penelitian ini bertujuan untuk mendapatkan pemodelan numerik dengan menggunakan perangkat lunak phase2. Hasil pemodelan didapatkan tiga model yaitu model 1 kondisi terowongan tanpa penyangga dengan meperhitungkan faktor kegempaan didapatkan nilai subsiden maksimum sebesar 60,58 mm. kemudian model 2 terowongan dengan penyangga shotcrete, wiremesh dan rockbolt subsiden maksimum sebesar 57,13 mm. dan model 3 terowongan dengan penyangga shotcrete, wiremesh, rockbolt dan h-beam subsiden maksimum sebesar 47,83 mm. Dari hasil numerik pada penelitian dan dengan mempertimpangkan anjuran SNI 8460:2017 yang membatasi batas subsiden < 50 mm maka yang memenuhi kriteria adalah kondisi terowongan dengan penyangga shotcrete, wiremesh, rockbolt dan H- Beam. Kata Kunci: Subsidens, Metode Numerik, PLTA Kerinci.
Analisis Perilaku Budaya Parkir (Studi Kasus Pasar Rahmat Samarinda)
Authors: Indra Ariani  , Putri Nopianti  , Dharwati P. Sari  , Yuti Astiti S  , Cindy Ummi Nurjannah
Published: August 2024

Pasar Tradisional masih menjadi pilihan utama bagi masyarakat dalam memenuhi kehidupan sehari-hari, salah satu pasar terpopuler di Kota Samarinda yakni Pasar Rahmat. Seiring dengan konsistensi akan transaksi ekonomi masyarakat di Pasar Rahmat terus meningkat, kebutuhan akan ketersediaan lahan parkir juga meningkat. Kondisi saat ini menunjukan bahwa luasan lahan parkir yang tersedia tidak dapat menampung seluruh pengguna dari Pasar tersebut mengakibatkan munculnya oknum yang menggunakan lahan parkir di luar area yang seharusnya dan menimbulkan kemacetan yang berkepanjangan terlebih lagi dihari libur. Penelitian ini dilakukan untuk menentukan solusi yang tepat yang terjadi pada lahan parkir di Pasar Rahmat. Metode penelitian yang digunakan yakni analisis kualitatif berupa analisa deskriptif untuk menjelaskan kondisi lahan parkir yang tersedia dan Observasi permasalahan arus lalu lintas yang terhambat karena lahan Parkir di Pasar Rahmat serta jalur keluar masuk pengguna Parkir yang juga menjadi pemicu terhambatnya arus lalu lintas di jalan raya Lambung Mangkurat tersebut.
Pasar Tradisional masih menjadi pilihan utama bagi masyarakat dalam memenuhi kehidupan sehari-hari, salah satu pasar terpopuler di Kota Samarinda yakni Pasar Rahmat. Seiring dengan konsistensi akan transaksi ekonomi masyarakat di Pasar Rahmat terus meningkat, kebutuhan akan ketersediaan lahan parkir juga meningkat. Kondisi saat ini menunjukan bahwa luasan lahan parkir yang tersedia tidak dapat menampung seluruh pengguna dari Pasar tersebut mengakibatkan munculnya oknum yang menggunakan lahan parkir di luar area yang seharusnya dan menimbulkan kemacetan yang berkepanjangan terlebih lagi dihari libur. Penelitian ini dilakukan untuk menentukan solusi yang tepat yang terjadi pada lahan parkir di Pasar Rahmat. Metode penelitian yang digunakan yakni analisis kualitatif berupa analisa deskriptif untuk menjelaskan kondisi lahan parkir yang tersedia dan Observasi permasalahan arus lalu lintas yang terhambat karena lahan Parkir di Pasar Rahmat serta jalur keluar masuk pengguna Parkir yang juga menjadi pemicu terhambatnya arus lalu lintas di jalan raya Lambung Mangkurat tersebu
Implementasi Universal Design Pada Taman Bebaya Samarinda
Authors: Putri Nopianti  , Wina Andriani  , Anisah Azizah  , Afif Raihan  , Reza Prakoso Dwi Julianto
Published: August 2024

RTH merupakan ruang terbuka dengan vegetasi yang berada di kawasan perkotaan yang mempunyai fungsi antara lain sebagai rekreasi, sosial budaya, estetika, fisik kota, ekologis, dan memiliki nilai ekonomis yang cukup tinggi bagi manusia maupun pengembangan kota. Pemerintah Indonesia telah menetapkan dan memahami secara resmi siapa penyandang disabilitas di Indonesia dan kategori mereka. Peraturan formal ini berfungsi sebagai acuan dan dasar untuk memahami semua pihak terkait dan masyarakat Indonesia tentang pengertian atau definisi dan kategori hambatan disabilitas di Indonesia. Metode penelitian menggunakan penelitian kualitatif dimana menjelaskan dan menganalisis fenomena, peristiwa, dinamika sosial, dan persensi seseorang. Data yang dikumpulkan di penelitian kualitatif menggambarkan realita sosial sesuai konteksnya, mendeskripsi apa adanya, sehingga menemukan pemahaman yang mendalam tentang sesuatu atau teori. Penelitian bertujuan bagaimana implementasi universal design pada Taman Bebaya Samarinda. Taman Bebaya belum sepenuhnya menerapkan prinsip universal design dan standar akesibilitas yang sesuai dengan Permen PUPR No. 14 Tahun 2017. Elemen fisik lingkungan banyak memiliki resiko bagi penyandang disabilitas yang ada pada prinsip-prinsip universal design.
Project Planning Kawasan Komersil Berbasis Pariwisata Tepi Air di Kota Samarinda
Authors: Sari Dharwati P. , Nopianti Putri , Setyawan Muhammad Rinaldy , Setiawan Muhammad Rangga , Nuranisa Riana
Published: August 2024

Mengembangkan suatu kawasan tepi air membutuhkan perencanaan yang baik dan matang. Aspek-aspek pembangunan yang sesuai dengan karakteristik dan permasalahan serta potensi yang dapat dikembangkan perlu dipertimbangkan agar pengembangan kawasan di daerah tepi air dapat berfungsi secara maksimal dan bermanfaat bagi masyarakat sekitar. Tujuan dari penelitian ini adalah mengembangkan sebuah kawasan komersil berbasis pariwisata yang diberi nama Mandalagawi “The Mahakam business and space” dengan membuat project planning mengenai struktur organisasi, site layout, desain, metode pelaksanaan, dan penjadwalan. Konsep ini meliputi kawasan bisnis komersil yang menyediakan area bisnis. bekerja, dan wisata dengan fasilitas sarana dan prasarana yang dapat menunjang seluruh aktivitas pengunjung sesuai kebutuhannya. Perencanaan waktu pelaksanaan adalah 260 hari kalender. Hasil dari penelitian ini adalah desain dan project planning kawasan komersil berbasis pariwisata yang ada di tepian sungai Mahakam.
Evaluasi Visual Lanskap Pada Kampung Warna-Warni Jodipan Kota Malang
Authors: Hawo Rato Muhammad Nova Fazril Fauzi , Soelistyari Hesti Triana , Alfian Rizki
Published: August 2024

The colorful village of Jodipan in Malang City, East Java is a residential village in the city center. Kampung Warna-Warni is a slum settlement that has a higher population and building density. In 2017, a group of Public Relations students from the University of Muhammadiyah Malang (UMM) initiated changes that succeeded in turning the Jodipan settlement, which originally looked shabby, into a beautiful and elegant area with colorful paint in the village. In this research, the method was obtained from survey results and documentation. In assessing the visual quality of the Jodipan Colorful Village landscape using the Scenic Beauty Estimation (SBE) method. The recommendations produced in this research are in the form of recommendations for illustrative images such as adding landscape-forming elements (hardscape and softscape).
 
Keyword: Kampung Warna-Warni Jodipan,Visual Lanskap, SBE
Los afroamericanos: un relato de necroderecho
Authors: San Vicente Parada Aida del Carmen
Published: August 2024

En Estados Unidos las prisiones son un negocio lucrativo porque tienen convenios con el gobierno donde le cobran a éste entre 40 y 60 dólares por recluso, esto implica que las prisiones fijen una cuota de presos que debe ser cubierta por un sistema legal que se caracteriza por criminalizar a los afroamericanos quienes durante años fueron esclavizados y marginados. En este artículo nos proponemos establecer la relación entre el marco legal (necroderecho), las políticas públicas (necropolítica), la mediatización de los discursos de odio y discriminación como una forma de convertir a los afroamericanos en homo sacer, ante la opinión pública que justifica que los cuerpos, la libertad y la vida de los negros y de otras minorías éticas sean disciplinados. Se propone un recorrido histórico a través de las leyes, las campañas políticas como la guerra contra las drogas y el Estado de excepción para evidenciar que la historia de los afroamericanos es un relato de necroderecho.
A Shift from Image-Based to Identity-Based Face Recognition is Enhanced by Social Significance but Mediated by Perceptual Experience
Authors: Trzewik Maayan , Liberman Nira , Yovel Galit
Published: August 2024

Person recognition is better for familiar than unfamiliar faces. Interestingly, recognizing specific images of the face shows a reverse effect of better recognition of unfamiliar than familiar faces. This suggests a representational shift from an image-based to an identity-based representation when faces become familiar. Does this shift arise from the richer perceptual experience with familiar faces, their higher social significance, or a combination of both? Two studies (N = 172) examined how these factors influence recognition of the person and the specific image. In Study 1, learning five images per unfamiliar person, compared to one, led to better person recognition and worse image recognition, making them more akin to familiar people. Study 2 replicated this effect and showed that higher social significance improved person recognition, but only when there was sufficient perceptual experience. We conclude that perceptual experience is crucial for identity-based recognition, while social significance enhances its effect.
Critical Review of the Article: "Evidence of Dark Oxygen Production at the Abyssal Seafloor" by Sweetman et al. in Nat. Geosci. 1–3 (2024)
Authors: Trellevik Lars-Kristian , Denny Alden , Svellingen Werner
Published: August 2024

This review examines the findings and methodologies presented in Sweetman et al. (2024) (hereafter referred to as ‘the paper’). The paper presents findings contrasting those of all previous comparable work and has stirred international debate pertaining to deep-sea minerals. We identify significant issues in data collection, validation, and interpretation including unvalidated data collection methods, the omission of crucial observations relevant for electrolysis processes, and unsupported voltage measurements which undermine the study's conclusions. These issues, coupled with unfounded hypotheses about early Earth oxygen production, call into question the authors’ interpretation of the observations and warrant re-examining the validity of this work. Our analysis is driven by scientific curiosity of mineral related processes, as our company has no vested interests in nodule production.
Female rats retain goal-directed planning of action sequences after acute stress despite changes in planning structure and action sequence execution
Authors: Dougherty Russell , Thrailkill Eric , Van Horn Sarah , Kussad Auny , Toufexis Donna
Published: August 2024

When making decisions under stress, organisms tend to deliberate less and rely on automatic habits. Prior investigation into the influence of stress on decision-making has primarily viewed goal-direction and habit as independent and competitive sources of control in static environments. The effects of acute stress on the integration of goal-direction and habit in hierarchical planning to solve dynamic tasks remain unclear. Here, our aim was to assess whether stress prompted the usage of habitual action sequences over the selection of discrete goal-directed actions in a serial decision task. We trained 16 female Long Evans rats in a two-stage binary choice task and performed two probe tests, one following acute restraint stress and one under control conditions, to identify how stress affected higher-level planning of behavior and intermediate action structures. We found that under both stressed and control conditions, rats exhibited goal-directed planning of habitual action sequences. However, following stress, rats showed a greater tendency to reiterate action sequences independent of reinforcement, indicating that stress may induce an aversion to exploration in action planning. Stress also increased the latency between responses – degrading action sequence integrity despite conserving their overall structure and performance. Taken together, these findings suggest that although acute stress does not disrupt the overall macrostructure of behavior in two-stage decision-making, it does alter the microstructure of goal-directed and habitual control individually. Further, these results imply that the extent to which stress impairs goal-direction in female rats may depend on the incentive structure and attentional demands of the decision environment.
The Advantage of Workspace Equality Based on a Sex Simulated Simple Evolution model
Authors: Fu Jerry , Chen Sihe
Published: August 2024

This study explores the evolutionary advantages of workplace gender equality using a simulation-based approach. Through an agent-based model, it contrasts the performance of societies adhering to two selection strategies: performance-based and equality-based, in scenarios with and without inherent sex disadvantages. The findings reveal that the equality approach, which ensures equal representation of sexes in job selections, accelerates societal performance evolution, outpacing the performance-only strategy even when sex-based disadvantages are factored in. This advantage is most pronounced in the early generations, highlighting the long-term benefits of gender equality policies in the workplace. The results underscore the importance of implementing gender equality measures in the workplace, not just as a matter of fairness but as a strategic advantage for societal advancement. This work suggests that policies enforcing workplace equality could offer unrecognized long-term benefits, urging a reevaluation of current approaches and encouraging further research to address its limitations and explore the broader implications of gender equality in evolving societies.