bluuebunny/crossref_metadata_2025_split huggingface dataset:
PEMBUATAN E-MODUL FISIKA BERBASIS PROBLEM BASED LEARNING MATERI USAHA DAN ENERGI
Authors: Panggabean Deo Demonta , Sembiring Stephanie Sisilia 
Published: February 2023

Penelitian ini bertujuan untuk menghasilkan e-modul fisika berbasis problem based learning dan mengetahui tingkat kelayakan serta kepraktisan dari e-modul. Metode yang digunakan dalam penelitian adalah Research and Development (R&D) dengan 4D Models oleh Thiagrajan yang telah dimodifikasi. Subjek penelitian adalah kelas X Mipa 1 yang terdiri dari 35 siswa. Hasil penelitian berupa e-modul fisika materi usaha dan energi berbasis problem based learning. Hasil uji kelayakan e-modul oleh ahli media yang terdiri dari empat komponen penilaian memproleh nilai sebesar 87% dengan kategori sangat layak, penilaian ahli media dengan satu komponen penilaian yang terdiri dari 26 soal memperoleh nilai 86% dengan kategori sangat layak, penilaian ahli pembelajaran yang terdiri dari lima komponen penilaian memperoleh nilai 82% dengan kategori sangat layak. Tingkat kepraktisan e-modul diperoleh berdasarkan respon siswa pada uji coba terbatas dan uji coba lapangan yang terdiri dari empat komponen penilaian memperoleh persentase sebesar 86% dengan kategori sangat praktis.
PENINGKATAN KEMAMPUAN MULTI-REPRESENTASI DALAM PEMBELAJARAN KOOPERATIF MENGGUNAKAN E-LEARNING
Authors: Silaban Adeline , Triwiyono Triwiyono , Panda Florentina Maria , Virman Virman , Lasmono Paulus G. D. 
Published: February 2023

Kurangnya keaktifan peserta mempresentasikan materi yang ada menghambat proses pembelajaran. Hal mempengaruhi kemampuan multirepresentasi peserta secara efektif. Tujuan penelitian untuk meningkatkan kemampuan multirepresentasi peserta dalam pembelajaran kooperatif menggunakan e-learning. Pengambilan sampel dalam penelitian adalah cluster random sampling dengan populasinya kelas terpilih angkatan 2021 yang berjumlah 21. Jenis penelitian digunakan penelitian deskriptif yang hanya memaparkan apa yang diperoleh atau yang terjadi dalam suatu wilayah tertentu yang diamati. Pengambilan data menggunakan instrument tes kemampaun multirepresentasi diadakan dalam bentuk tes uraian 30 butir soal yang sudah divalidasi oleh ahli. Hasil penelitian menunjukkan adanya peningkatan kemampuan multirepresentasi dengan nilai rata-rata gain 0,40 dengan kategori sedang. Hasil gain masing masing peserta diperoleh 2 peserta kategori tinggi, 14 peserta kategori sedang dan 5 peserta kategori rendah
Potensi tanaman herbal Terhadap Jamur Pityrosporum ovale Penyebab Ketombe
Authors: Laelasari Eli , Musfiroh Ida 
Published: February 2023

Ketombe merupakan salah satu penyakit kulit akibat infeksi jamur yang banyak diderita terutama di Indonesia yang merupakan negara tropis. Prevalensi ketombe di dunia mencapai 50% pada usia pubertas dari seluruh populasi penduduk dunia. Pityrosporum ovale diduga merupakan penyebab utama dari penyakit ketombe. Saat ini masyarakat banyak menggunakan tanaman herbal untuk pengatasi ketombe. Tinjaun pustaka ini dibuat dengan tujuan agar dapat mengetahui tanaman herbal mana saja yang memiliki daya antipungal yang berpengaruh pada pertumbuhan jamur Pityroporum ovale. Metode penelitian ini dilakukan dengan Systematic Literature Review, situs yang digunakan dalam penelusuran literatur yaitu Google Scholar dan NCBI. Kata kunci yang digunakan adalah “tanaman terhadap jamur Pityrosporum Ovale”, “tanaman untuk ketombe”, “Herbs for dandruff”. Literatur yang digunakan pada tinjauan pustaka ini yaitu 15 jurnal. Hasil didapat tanaman yang berpengaruh terhadap pertumbuhan jamur pytirosporum ovale penyebab ketombe, dengan kategori zona hambat sangat kuat, kuat, sedang dan lemah. Tanaman dengan katedori tersebut secara berturut-turut daun alamanda (Allamanda cathartica L.) 301,28 mm; daun karuk (Piper sarmentosum Roxb) 19,4 mm. kangkung air (Ipomoea aquatica) 10,0 mm dan daun belingbing wuluh (Averrhoa bilimbi L.) 3,07 mm.
The digital competence of government public relations officer in Magelang City
Authors: Afrilia Ascharisa Mettasatya , Rhizky Deani Prionazvi , Putri Wahyu Eka , Ratnasari Eny 
Published: February 2023

Background: Since new media is developing, it is important to examine new media literacy, especially in the era of 4.0. The government’s public relations also need new media literacy since the government needs to establish a harmonic relationship with the public to achieve sympathy, trust, teamwork, and support in government policy implementation. Purpose: This research aims to evaluate the digital competence of members of government public relations in the Magelang government apparatus forum. Methods: Digital competence is measured by questionnaires of functional and critical prosuming. This research uses a quantitative survey method. The survey includes the assessment of beliefs, opinions, and characteristics by using questionnaires. Questionnaires are used to collect the data by using items of questions for respondents. The research object is the government apparatus in Magelang, while the respondents are government public relations officers. The quantitative method is expected to comprehensively describe digital literacy by government public relations officers in the Magelang government apparatus. Data analysis uses descriptive statistics. Conclusion: Based on data analysis, members of government public relations in the Magelang government apparatus forum agree that they have functional and critical prosuming. Implications: This research implies local government of Magelang to improve new media literacy for local government public relations so the government can achieve the public relations objective of harmonic relationship establishment with the public.
Comparison of the effects of probiotic-based formulations on growth, feed utilization, blood constituents, cecal fermentation, and duodenal morphology of rabbits reared under hot environmental conditions
Authors: Alagawany Mahmoud , Bassiony Samar S. , El-Kholy Mohamed S. , El-Naggar Karima , El-Metwally Abeer E. , Al-Sagheer Adham A. 
Published: February 2023

Abstract
The present study aimed to assess the effects of three probiotic-supplemented diets on growth, cecal fermentation, blood biochemical, and intestinal morphological features in growing rabbits reared under summer conditions. Rabbits were allotted into four groups: G1 rabbits were fed the basal diet (control), G2 rabbits received Enterococcus faecium (EF) and Clostridium butyricum (CB) complexes (1 × 108 and 2.5 × 106 cfu/kg diet, respectively), G3 rabbits were given CB (2.5 × 106 cfu/kg diet) and yeast complexes (1 g/kg diet), and G4 rabbits received EF (2 × 108 cfu/kg diet) and yeast (1 g/kg diet). G2 rabbits exhibited the highest performances in terms of enhanced body weight and weight gain, protein efficiency ratio and feed conversion ratio (P<0.05). Serum total protein, globulin, immunoglobulin M, and highdensity lipoprotein concentrations were higher in probiotic-fed rabbits than those in controls. Additionally, lipid profile parameters were significantly reduced in the probiotic-fed rabbits, with the lowest concentrations measured in G4 rabbits (P<0.05). Rabbits given EF and CB had the highest total volatile fatty acid (VFA ) and propionic acid levels and the lowest ammonia concentrations. Increased villi length and muscular layer thickness and reduced crypt depth were observed in rabbits receiving EF and CB compared with the values obtained in controls (P<0.05). In summary, supplementing fattening rabbit diets with EF and CB, as a novel formulation, might be a promising and easy method to enhance growth performance under hot climate conditions by improving the feed utilization, immune response, serum lipid profile, cecal VFA production, and duodenal morphology.
Growth Performance, Feed Utilization, Hematological Parameters, and Histological Features of Nile Tilapia (Oreochromis niloticus) Fed Diets with Supplementary Herbal Extracts Under Prolonged Water Exchange
Authors: Abdel-Aziz Mohamed F.A. , El Basuini Mohammed F. , Teiba Islam I. , Metwally Mohamed M.M. , El-Dakar Ashraf Y , Helal Amr M. , Hassan Habib Ul , Yones Abdel-Moniem M. , Shehab Ahmed , Dawood Mahmoud A.O. 
Published: February 2023

Abstract
Nile tilapia is known for its relative tolerance to some biotic and abiotic stressors. However, long-period water exchange may impair the health status and, thereby, the growth performance and feed utilization. In this regard, using herbal extracts may help to relieve the adverse impacts of low water quality on the productivity of this fish species. A 100-day feeding trial was designed to examine the effects of dietary supplements of Aloe vera leaves (AVE), and chamomile flowers, Matricaria chamomilla (CFE) extracts on water quality, growth performance, and well-being of Nile tilapia. Fish (3.95±0.05 g, n=1200) were distributed into five groups (15 fiberglass tanks, 2 m3) under a water exchange rate of 20% every two days for standard control (T0) without herbal supplements. Groups (T1, T2, T3, and T4) were exposed to a long water exchange period of 50% every month, wherein T1 (stressed control), T2, T3, and T4 groups were fed a diet supplemented with 0% herbal extract, 1% AVE, 1% CFE and 0.5% AVE +0.5% CFE, respectively. Results showed that feeding on a T2 diet exhibited a clear improvement under a long period of water exchange stress, and it is almost similar to their counterparts under normal conditions (T0) in terms of specific growth rate, survival rate, feed intake, feed conversion ratio, and protein efficiency ratio. Moreover, the lowest levels of aspartate aminotransferase were obtained with T2 and T0. In addition, the highest white blood cell count and hemoglobin values were recorded with group T0, followed by T2, and T4, while there was no significant difference between T3 and T1. Fish under stressed conditions without herbal extracts (T1) showed the lowest performance and survival rate compared to T0 and T2 groups. In conclusion, feeding diet supplied with 1% A. vera extract to stressed fish restored their performance and well-being to the level of their counterparts under normal conditions.
A Moral Entrepreneur in the Land of Consensus: Making School Policy in Switzerland
Authors: Fouquet-Chauprade Barbara , Revaz Sonia , Charmillot Samuel 
Published: February 2023

Abstract
This article examines the way in which political decisions on schooling are made, with the double constraint of a search for consensus, anchored in Swiss politics, and the presence of moral entrepreneurs (Becker, 1985).We analyse the tensions that this creates in the design of a reform of lower secondary education and the forms that the conflict takes. The analyses show an over-politicisation of educational issues, exacerbating the divisions between policy actors.
Discusión sobre el diseño del prototipo de una etiqueta óptica para la identificación de ganado vacuno en corrales
Authors: Losada Chala Laura Ximena , León-Salas Walter Daniel , Bravo Obando Martin Diomedes 
Published: February 2023

El campesino, a través de la identificación y rastreo de animales de granja, puede monitorear la salud, realizar un rastreo de contacto, analizar comportamientos y relaciones sociales. De este modo se puede recopilar, analizar datos y crear soluciones para la prevención de enfermedades o el estudio de movimientos e interacciones. Para dichos propósitos se desarrollaron tecnologías enfocadas en la localización, principalmente basadas en radiofrecuencia (RF). Ejemplos de estas son los sistemas de posicionamiento global (GPS) o las etiquetas de identificación por radiofrecuencia (RFID).
No obstante, las tecnologías basadas en frecuencias ópticas también son alternativas, pues poseen ciertas características físicas que las dejan en posición de ventaja, respecto a las comunicaciones por radiofrecuencia. Análogo a RFID, el laboratorio tinyLab de la Universidad de Purdue ha propuesto una tecnología de identificación basada en comunicación óptica, su nombre es OFID (Optical Frequency Identification). Esta tecnología persigue el mismo propósito de RFID, pero utiliza celdas solares para transmisión y recepción de datos y las aprovecha para almacenar energía.
En el presente artículo de reflexión se ha establecido una discusión sobre el proyecto de investigación desarrollado entorno a OFID, en mencionado laboratorio. El trabajo consistió en el diseño del prototipo de una etiqueta óptica para la identificación de animales de granja de corral. La discusión a continuación se centra en la importancia de identificar animales, argumentar por qué OFID es una alternativa a RFID en la identificación de animales, contar acerca del procedimiento y reflexión sobre los resultados de investigación y, para finalizar, cuál es el futuro, desde el punto de vista del investigador, de OFID en el desarrollo de las áreas priorizadas por el departamento del Huila.
Reflexiones sobre salud y autonomía alimentaria del pueblo indígena Nasa
Authors: Dussán Chaux Juan David , Calderón Farfán Juan Camilo , Arias Torres Dolly 
Published: February 2023

En el mundo contemporáneo se gestan cambios hacia una forma de vida sencilla, menos consumista, más tranquila y en armonía con la naturaleza. Varios de estos cambios están ligados a luchas históricas de resistencia indígena frente a la brutalidad invasora y a la pretensión de desconocer o desaparecer su legado; también el movimiento campesino ha hecho aportes destacados en la misma dirección.
Por limitaciones propias de este tipo de manuscritos, la reflexión se centrará en dos categorías, autonomía alimentaria y salud desde una perspectiva indígena. Según la comunidad Nasa, estos dos términos se asocian con una buena vida, sustentable y en equilibrio con la madre tierra.
La autonomía alimentaria, asociada a la producción de alimentos locales, con semillas propias y sistemas de cultivo, recolección y preparación originarios, no solo produce bienestar o buen vivir para los humanos; también contribuye al cuidado del territorio, condiciones fundamentales para la armonía y la buena salud. En este sentido, toma relevancia trabajar la autonomía alimentaria desde el ámbito local, con proyección nacional e internacional.
In silico molecular docking and in vitro antimicrobial efficacy of phytochemical compounds of Lantana camara Linn.
Authors: Anita Adline , Selvaraj D. 
Published: February 2023

The rise of multi-drug resistant bacteria and the extensive use of antibiotics has become a serious threat worldwide. The side effect of antibiotics swirled the researchers towards traditional medicine to find a therapeutic agent with antibacterial activity. The phytochemical compound from medicinal plants paves a way for the novel antibacterial agent. In the present study, in silico molecular docking of phytochemical compounds identified through GC-MS analysis and in vitro antibacterial efficacy of ethanolic leaf extract of Lantana camara were evaluated. In silico docking studies of 11 Phyto-ligands were carried out against 4 motifs- 1PHO, 5I5H, 5UW2 and 6NTW of Escherichia coli to estimate the binding energy and to know the protein-ligand interaction. Amongst all the phyto-ligands studied, 4,8,13-Cyclotetradecatriene-1,3-diol,1,5,9-trimethyl-12-(1-methylethyl) showed good affinity towards 1PHO, 4a(2H)-Phenanthrenecarboxaldehyde,1,3,4,9,10,10a-hexahydro-6-methoxy-1,1-dimethyl-7-(1-methylethyl) exhibited highest affinity with 5I5H motifs of E. coli, 4,8,13-Cyclotetradecatriene-1,3-diol, 1,5,9-trimethyl-12-(1-methylethyl) showed better affinity towards motif 5UW2 of E. coli and (Z)-4-Nitro-alpha-(p-nitrophenyl)cinnamic acid showed good affinity towards 6NTW motif of E. coli. The ethanolic leaf extract of L. camara L. showed concentration dependent activity against E. coli.
Insights on the Origin and Distribution of CO2 in Malay Basin, Offshore Peninsular Malaysia: A Petroleum System Modelling approach
Authors: Nayak Satyabrata , Masoudi Rahim , Tarang Patrick Panting Alexander , B M Diah M Amri , B Roslan Mohd Razeif , B M Amin M Farid , R Iyer Subramania , Aarssen Ben Van , Fun Sook , Mishra Somen 
Published: February 2023

AbstractHigh concentration of CO2 in various fields of Malay basin, offshore Peninsular Malaysia pose major challenges in monetizing the resources in a sustainable way. Focused study to understand the source, origin and distribution of CO2 is essential to make informed decisions on developing the fields. This paper is part of the basin scale study to address the distribution of CO2 and its risk assessment. Modelling of the petroleum system including CO2 contaminant was adopted to validate the fluid accumulations in the basin with observed results from fields. An Earth Model was built using maps generated from an integrated study of seismic and 65 key wells. The depth to basement and depth to Moho were incorporated from previous gravity modelling study. The CO2 content and isotope data compiled from reports facilitated in building the knowledge on the source, origin, and distribution over the study area. Play segments identified based on tectonic features were used to divide the basin into subset areas for analysis.
Performance Evaluation of Novel Silane Coated Nanoparticles as an Additive for High-Performance Drilling Fluid Applications
Authors: Bardhan Anirudh , Khan Fahad , Kesarwani Himanshu , Vats Sushipra , Sharma Shivanjali , Kumar Shailesh 
Published: February 2023

AbstractImproving water-based drilling fluid properties to mitigate instability issues at elevated temperatures is the need of the hour. In this study, industrially prepared silica nanoparticles (NPs) coated with AEAPTS ([3-(2-Aminoethylamino) propyl] trimethoxy silane) was used as an additive to enhance the rheology and control filtration of the water-based mud. Silica nanoparticles were coated separately in a two-step process, which involved the addition of a hydroxyl group first and then coating with AEAPTS. To check its applicability in water-based drilling fluids rheological and filtration tests were done with varying NP concentrations of 0.2, 0.3, and 0.4 w/v %. The rheology values of the mud samples were recorded both before and after the thermal aging of mud in the roller oven at 105°C for 16 hours. The filtration test was carried out according to API standards with 100 psi differential pressure for 30 minutes. The silane coating over the silica NPs was confirmed with the shifting in the peaks of the FTIR (Fourier Transform Infrared) spectra of the sample. Both the plastic viscosity (PV) and the apparent viscosity (AV) of the drilling fluid were found to be increasing with silane-coated silica nanoparticles’ inclusion when tested at 30°C and 60°C. The degradation in the rheology of the base mud without nanoparticles after thermal aging was found to be around 60 % which was reduced to around 20 % with the addition of the coated silica nanoparticle. Also, a remarkable reduction in the filtrate volume, when compared with base mud, was achieved with the addition of the silane coated NP in the mud. The results show that the novel AEAPT silane-coated silica NPs can be used as a rheology modifier and filtration control additive in water-based drilling fluid for high-temperature drilling applications.
Co-Evolution Law and Control Technology of Corrosion and Scaling in Water Injection Wells of a Middle East Carbonate Oilfield
Authors: Ye Zhengrong , Wang Guan , Zhou Xiang , Zhao Limin , Jiang Weidong , Yi Ran , Cui Xiaodong , Qiu Zhichao , Yang Zhiwen , Chen Yingfeng , Li Kai 
Published: February 2023

AbstractIn order to compensate formation pressure and maintain oil production, a carbonate oilfield in the Middle East adopts water flood development. The injected water exhibits the feature of high salinity and high content of chloride, high content of H2S, and high content of scaling ion. As a result, severe corrosion perforation and plugging were encountered in less than two years, which seriously affects the normal water injection and production of the oilfield.This paper aims to find out the main controlling factors and co-evolution law of corrosion and scaling, and propose the prevention strategy. The composition of the scale samples is firstly analyzed by combustion method, XRD and atomic absorption spectrometry, and then the main controlling factors of corrosion and scaling are experimentally clarified. On this basis, immersion experiments at different times are further carried out to reveal the evolution of corrosion and scaling in injectors at different depths.The results show that temperature, salinity (mainly Cl-), total sulfur content, and sulfate reducing bacteria (SRB) are the main factors controlling corrosion and scaling, and there is a synergistic effect among them. Temperature and sulfide have a promoting effect on uniform corrosion and scaling, while the salinity in the range of 110g/L-180g/L has an inhibition effect, but has a promoting effect on localized corrosion under deposits; a small amount of SRB can still propagate rapidly under deposits, aggravating the localized corrosion. Along the wellbore profile from top to bottom, the uniform corrosion rate and scaling amount increase but the localized corrosion rate decreases, which indicates that the high risk of localized corrosion perforation in the middle and upper part of the wellbore, as compared to the lower part. It is consistent with the actual corrosion perforation law of water injection wells. The co-evolution mechanism of corrosion and scaling is a synergistic process of three factors: lower uniform corrosion rate under high salinity + sulfide-induced local corrosion initiation + SRB enrichment under deposits and acidification autocatalysis due to Cl- migration. Finally, corrosion and scale control measures were taken by deep desulfurization and adding corrosion inhibitor. This work provides useful practical experience for preventing corrosion and scale formation of high salinity injector in carbonate oilfield.
Downhole Detection of Solid Inflow and Identification of Sand Control Failure Using Pressure and Temperature Sensing Data
Authors: Yamamoto Koji , Kanno Takayuki , Kumagai Kenichi 
Published: February 2023

AbstractDownhole sand production detection is a crucial method for preventing critical damage to production systems from producing solids, especially in deepwater occasions. In two cases, this study shows how to use pressure and temperature sensors installed in the producer and observer boreholes for offshore gas hydrate production tests in the eastern Nankai Trough to detect solid inflow and pinpoint the regions of sand control failure. Sensors were placed in the boreholes for those attempts in 2013 and 2017, to observe the endothermic gas hydrate dissociation processes. However, data collected during stable production and times of sand inflow demonstrated the occurrence of pressure-temperature changes brought on by sand production. Along with reservoir character information, the data could suggest the mechanism of sand production and strong water inflow that brought fine particles into the sand production device and caused erosion of the device that resulted in a sudden loss of functionality of the device. We could get quantitative information about the mass of created sand and the velocity of sand motion in 2017 from data collected by pressure and temperature sensor array. At the bottom of the borehole, where a guide shoe could accidentally open and let sand and liquid enter, where the sand inflow was situated. These findings could assist us to identify the weak spots of the sand production equipment, which would then enable us to address the issue and improve sand control in the second producer hole of the 2017 operation.