bluuebunny/crossref_metadata_2025 huggingface dataset:
Vaporizadores en Adolescentes: Factores Asociados, Prevalencia, y Perspectiva Comunitaria de la Promoción de la Salud
Authors: Ocasio-Peña Carolina
Published: September 2023

Objetivo: En el tercero de los Objetivos del Desarrollo Sostenible: Salud y Bienestar,se encuentra la meta destinada a fortalecer la prevención y el tratamiento del abuso desustancias. Se proponen tres objetivos: (1) identificar bibliografía referente al uso devaporizadores en adolescentes y jóvenes para constatar variables importantes como factoresasociados, (2) realizar una recopilación comunitaria mediante entrevistas y foros parareconocer la percepción social del uso de vaporizadores, y (3) determinar, en la población dejóvenes y adolescentes puertorriqueños, la prevalencia del uso de vaporizadores.Materiales y Métodos: Un estudio mixto: cualitativo observacional y transversal analíticofue realizado basado en el modelo conceptual de la Promoción de la Salud (comunitario,individual y científico) con una recopilación de datos consistente en: revisión de 13artículos, entrevistas a informantes claves que trabajan con la salud y seguridad de jóvenespuertorriqueños, y análisis, utilizando el programado SPSS, de prevalencias del cuestionariopuertorriqueño autoadministrado Consulta Juvenil (n=8,603), base de datos secundaria.Resultados: La literatura establece factores asociados como: mercadeo, relación familiary socialización. Se encontró que las organizaciones visualizan a la promoción de la saludcomunitaria como un método preventivo. El 21.9% de estudiantes de escuela superior hacenuso de vaporizadores. 22.1% no saben la sustancia que contiene su vaporizador.Conclusión: La promoción de la salud se basa en políticas públicas favorables, educaciónen salud, movilización social-comunitaria y trabajo multidisciplinario. Recomendamosque, se practiquen evaluaciones y prevenciones del uso de vaporizadores basados en unasalud pública promotora de la salud. De esta manera, se trabajará el Objetivo del DesarrolloSostenible: Salud y Bienestar, para la protección de generaciones jóvenes y disminuir lasprevalencias del uso de sustancias.Palabras claves: Vaporizadores; Puerto Rico; Adolescentes; Promoción de la Salud.
Teoría y metodología en Elías José Palti
Authors: Páez Debia Gabriel
Published: September 2023

Este artículo analiza en términos historiográficos los preceptos teóricos y metodológicos desarrollados por el historiador Elías José Palti. Para ello nos hemos centrado en las diferencias que él explicita entre la historia de las ideas y la historia intelectual. Además, abordamos las influencias intelectuales que se observan en la obra de dicho historiador, los diálogos, propuestas y precauciones que se deben tomar, en conjunto a las categorías esenciales para hacer este tipo de análisis. En ese sentido destacamos que esta forma de hacer historiografía tiene un gran potencial por su carácter interdisciplinario y novedoso en términos interpretativos, mientras que por otro lado el malestar que impulsó a Palti en la búsqueda de una nueva forma de hacer historiografía persiste aún dentro del contexto chileno, en la medida que dicho marco teórico-metodológico sólo se ha trabajado recientemente por los historiadores de aquel país.
Effect of two methods of irrigant agitation on the temperature and cleanliness of sodium hypochlorite associated or not with a chelator
Authors: Borges Mariana Maciel Batista , Barros Mirela Cesar de , Queiroz Índia Olinta de Azevedo , Andrade Flaviana Bombarda de , Duarte Marco Antonio Hungaro
Published: September 2023

Aim: This study investigated the influence in vitro of different sodium hypochlorite (NaOCl) agitation protocols associated or not with DualRinse (HEDP) on the temperature of the solution. Methods: Forty-eight premolars were instrumented and their apical third sealed to allow a closed irrigation system. The teeth remained immersed in a basin of warm water (37°C). The teeth were divided into the groups: G1 (NaOCl+Passive Ultrasonic Irrigation (PUI)), G2 (NaOCl/HEDP + PUI), G3 (NaOCl + EasyClean (EC)) and G4 (NaOCl/HEDP + EC). The canals were filled with the respective solutions and after 180 seconds the first temperature measurement was taken (T0). Then, the solutions were agitated, following the different protocols, for 60 seconds and a new measurement was performed (T60). The temperature was measured using a digital thermometer for type “K” sensors that was inserted into the middle third of the teeth. At the end of the measurements, the teeth were sectioned and prepared for scanning electron microscopy. The dentinal wall of middle third was graded according to the amount of debris and smear layer remaining on the walls. The results were analyzed using ANOVA test and Tukey’s multiple comparisons (p<0.05). Results: G1 and G2 had an average increase in temperature of 1.1°C and 1.65°C, respectively (p>0.05). EasyClean caused a decrease in the temperature of the solutions in both groups, without a significant statistical difference with T0 (p>0.05). Regarding cleaning, it was only possible to observe clean dentinal tubules in the groups with the chelator. PUI discretely increased the temperature of the solution, regardless of the solution. The opposite effect was observed after activation with EasyClean. Conclusion: The association of NaOCl with a chelating agent promoted the cleaning of the dentinal tubules.
Da autoria
Authors: Guimarães Hélio de Seixas , Levin Orna Messer
Published: September 2023

Este dossiê é uma iniciativa do grupo de pesquisa CNPq “Da autoria literária: história, atualidade e perspectivas”, criado em 2021 com objetivo geral de aprofundar as pesquisas sobre a autoria literária no Brasil, desde a época de sua consolidação, no século XIX, até a contemporaneidade. As investigações a respeito de tal conceito se mostram particularmente oportunas neste momento em que os meios digitais obrigam a repensar as noções de autor e autoria constituídas com base, principalmente, nas formas materiais dos manuscritos e impressos.
Implementasi Demokrasi Ekonomi Sejak Diberlakukannya Undang-Undang Nomor 6 Tahun 2023 Penetapan Perppu Nomor 2 Tahun 2022 Tentang Cipta Kerja menjadi UU
Authors: Shalihah Aini , Fawahan Lian
Published: September 2023

AbstractThis article aims to determine and analyze the legitimacy of actions the presence of Law Number 6 of 2023 concerning the Stipulation of Perppu Number 2 of 2022 concerning Job Creation cannot yet be said to be a solution to stabilize economic democracy in Indonesia. In terms of substance, the law contains several economic contents such as workers' wages and others. This is because there is still opposition from the public regarding this policy and the government, in the process of making the mechanism for this policy, is considered to have injured the Law on the Formation of Legislation, namely in terms of community participation. So then, the application or implementation of economic democracy in the field is still far from optimal. Because in this case the government often makes policies that do not involve public participation. So public participation in Law No. 6 of 2023 proves that economic democracy is currently still not resolved.
Keywords: Democracy; Economy; Indonesia; Determination of Job Creation Perppu.
AbstrakUndang-Undang Nomor 6 Tahun 2023 tentang Penetapan Perppu Nomor 2 Tahun 2022 tentang Cipta Kerja masih belum bisa dikatakan sebagai solusi untuk menstabilkan demokrasi ekonomi di Indonesia. UU tersebut dalam hal substansi mengandung beberapa muatan-muatan ekonomi seperti halnya upah pekerja maupun yang lain. Hal ini disebabkan karena masih ada pertentangan dari masyarakat terkait kebijakan ini serta pemerintah dalam proses mekanisme pembuatan dari kebijakan ini dianggap menciderai UU Pembentukan Peraturan Perundang-undangan yakni dalam hal partisipasi masyarakat. Sehingga kemudian, penerapan ataupun pelaksanaan demokrasi ekonomi di lapangan masih jauh dari kata maksimal. Dikarenakan dalam hal ini pemerintah sering membuat kebijakan yang belum melibatkan partisipasi publik. Jadi public participation dalam UU No.6 Tahun 2023 membuktikan bahwa demokrasi ekonomi saat ini masih belum teratasi.
Kata Kunci: Demokrasi; Ekonomi; Indonesia; Penetapan Perppu Cipta Kerja.
Kedudukan Hukum antara Pengguna Jasa dan Financial Planner dalam IKD Financial Planner
Authors: Tyaskinasih Duhita Pramesi
Published: September 2023

AbstractDigital Financial Innovation or IKD (a new name for fintech by the Financial Services Authority/OJK) is an activity to innovate business processes, business models, and financial instruments that can provide new added value in the financial services sector and in its implementation in-volves the digital ecosystem. IKD Financial Planner is one of IKD’s groups based on a digital financial planning business model by accredited financial planners who offer their services through a digital platform. This study will discuss regarding an agreement of Finansialku, one of the IKD Financial Planner platforms authorized by the OJK. In the transaction, the main binding agreement between the Finansialku team and its service users is the Application User Agreement. This study aims to identify the legal standing between users and financial planners on IKD Financial Planner Finansialku ecosystems. This study concludes that in the main agreement the legal subjects who are bound and have legal standing are Members (service users) and IKD (service providers, in the form of limited liability company), without the involvement of financial planners.Keywords: Digital Financial Innovation; Fintech; Financial Planner, Digital Financial Planner.
AbstrakInovasi Keuangan Digital atau IKD adalah aktivitas pembaruan proses bisnis, model bisnis, dan instrumen keuangan yang dapat memberikan nilai tambah baru di sektor jasa keuangan dan dalam penyelenggaraannya melibatkan ekosistem digital. Penelitian ini membahas perjanjian dari Finansialku, salah satu plat-form IKD Financial Planner yang diakui oleh OJK. Dalam transaksinya, perjanjian utama yang mengikat antara tim Finansialku dan pengguna jasanya adalah Perjanjian Pengguna Aplikasi. Penelitian ini bertujuan untuk mengidentifikasi kedudukan hukum antara pengguna jasa dan financial planner dalam ekosistem IKD Financial Planner Finansialku. Penelitian ini menyimpulkan bahwa dalam perjanjian utamanya subyek-subyek hukum yang terikat dan memiliki kedudukan hukum adalah Ang-gota (pengguna jasa) dan IKD (pemberi jasa, berbentuk Perseroan Terbatas), tanpa melibatnya perencana keuangan.Kata Kunci: Inovasi Keuangan Digital; Fintech; Perencana Keuangan; Perencana Keuangan Digital
The Effect of Ca-074 (Cathepsın B Inhibitor) on Necrotic and Apoptotic Neuronal Cell Death in Model of Cerebral Ischemia
Authors: ÖZKARA Emre , DURMAZ Ramazan , ÖZBEK Zühtü , ÖZDEN Hilmi , KANBAK Güngör , UZUNER Kubilay
Published: September 2023

Lysosomes and cathepsins, the most common hydrolytic enzymes in lysosomes, are available in the different models of cell death as necrosis and apoptosis. This study investigated the effect of cathepsin B-selective inhibitor CA-074 on apoptotic and necrotic neuronal cell death. Focal cerebral ischemia which has been formed by occlusion of the three-vessel consisting permanent middle cerebral artery occlusion and temporary bilateral common carotid artery occlusion for 60 minutes was selected as ischemia model. Two sets of rats were used in this study. The rats in the first set were used formeasurement of sulfhydryl groups in the lysosomal membrane, lysosomal integrity, cathepsins B and L activities and caspase-3 activity. The rats in the second set were used as histological study including "hematoxylin and eosin" for the detection of necrotic neuronal deathand "TUNEL" staining for the detection of apoptotic neuronal death. 4 mg/kg CA-074 was administered intravenouslyin the treatment group. CA-074 has substantially reduced levels of cathepsins B and L compared to ischemia and solvent groups (respectively, p<0.05 and p<0.01). Similarly, CA-074 has reduced increase in caspase-3 activity compared to ischemia and solvent groups (p<0.05). While the number of eosinophilic (necrotic) and apoptotic neurons has highly increased in post-ischemic cerebral tissue in middle cerebral artery feeding area (p<0.001), CA-074 could only reduce significantly the number of apoptotic neurons (p<0.05). CA-074 has reduced apoptotic neuronal death by inhibiting caspase and cathepsin activity. It may be useful that CA074 is used with other therapeutic drugs in stroke patients.
Adaptation of the traditional culture of subsistence of the Ukrainian peasant-migrants in the south of Western Siberia (late 19th — early 21st century)
Authors: Fedorov R.Yu.
Published: September 2023

Presented In the paper, are the results of a field study of the adaptation of the traditional culture of subsistence of the Ukrainian peasant-migrants of the late 19th century, who lived in Odessa District of Omsk Oblast. It has been established that due to the lack of constructional timber descendants of the migrants contin-ued building adobe houses up until the 1990s. Despite a number of innovations and borrowings, many of the original elements of the traditional dietary culture of the migrants retained. This phenomenon was caused by that, for a long time, personal allotments continued to play an important role in the subsistence of the migrants, as well as by that the food preferences usually constitute one of the sturdiest elements of family traditions. As compared to dwellings and food, clothing turned out to be the least invariant element of the traditional life-sustaining culture of the Ukrainian migrants. This was caused by the difficulty of growing flax and relative availability of purchasable fabrics. It has been concluded that the peculiarities of the local natural resources in most cases turned out to be the determining factor of preservation or transformation of certain elements of the traditional culture of subsistence of the migrants. At the same time, this model carried on until the moment when, alongside these re-sources for the sustenance of the local community, substitute materials and products, obtained in the result of the industrial production, were becoming available.
When the connectivity is lost: infrastructural uncertainty and reaction to it amongst the tundra nomads of the Yamalo-Nenets Autonomous Okrug
Authors: Istomin K.V.
Published: September 2023

The present paper contributes to the study of ‘infrastructural failures’ as one of the rapidly developing in re-cent times areas of the anthropology of infrastructure. In the focus of the research is a ‘failure’ of the satellite tele-phone communications in Russian Arctic, which occurred as a result of the decision of one of the providers, Globalstar inc., to withdraw from the Russian market in March 2022. This provider was particularly popular amongst the groups of the native population of Russian Arctic due to low prices for the service and equipment. In the paper, the ethnographic data collected during a fieldwork amongst reindeer herding nomads of Nadym District of the Yamalo-Nenets Autonomous Okrug, Russia, are used, on the basis of which the study is carried out on how the tundra nomads were adapting to the failure and overcoming its consequences. The paper starts with a short historical review of the development of long-range communications in tundra and the social norms, strategies, and behavioural patterns formed at different times amongst the reindeer herders in respect to these communications. This review, the materials for which comprised published literature and fieldwork records of the author collected in the late 1990s — early 2000s, demonstrates that up until the arrival of mobile and satellite telephones in tundra during the second decade of the 21st century, radiocommunications of the reindeer herders were, firstly, public and, secondly, relied in messaging on the social networks and mutual obligations of the nomadic groups with regard to transferring information. The review is followed by the description and analysis of the field data collected by the author during the fieldwork in August 2022. It is shown that the loss of the satellite connectivity in the spring of that year disturbed the reindeer herders very much and even caused a change in the movement routes of some of their groups. However, the herders soon managed to adapt to the new conditions. For that, the mobile phones, which were working on a part of the migration territory of the herders, were employed, as well as, impor-tantly, there were restored the social networks and obligations with respect to the information transfer that allowed reliable and relatively fast communications with the locations where the mobile connectivity was lacking. As the result, the communications once again became public, but the serious problems, which might have been caused by the interruption of the satellite connectivity, were able to be avoided. Meanwhile, the acute feeling of uncer-tainty that the herders were experiencing after the failure of the satellite connectivity, shows that the role of the long-range radiocommunications in their lives has increased significantly over the last two decades. The results of the study are also discussed in the context of the recent hypothesis on the “societies of the failure normality”.
Interaction of Heavy Metal Lead with Gut Microbiota: Implications for Autism Spectrum Disorder
Authors: Tizabi Yousef , Bennani Samia , El Kouhen Nacer , Getachew Bruk , Aschner Michael
Published: September 2023

Autism Spectrum Disorder (ASD), a neurodevelopmental disorder characterized by persistent deficits in social interaction and communication manifests in early childhood and is followed by restricted and stereotyped behaviors, interests or activities in adolescence and adulthood (DSM-V). Although genetics and environmental factors have been implicated, the exact causes of ASD have yet to be fully characterized. New evidence suggests that dysbiosis or perturbation in gut microbiota (GM) and exposure to lead (Pb) may play important roles in ASD etiology. Pb is a toxic heavy metal that has been linked to a wide range of negative health outcomes including anemia, encephalopathy, gastroenteric diseases and more importantly cognitive and behavioral problems inherent to ASD. Pb exposure can disrupt GM, which is essential for maintaining overall health. GM, consisting of trillions of microorganisms, has been shown to play a crucial role in the development of various physiological and psychological functions. GM interacts with the brain in a bidirectional manner referred to as “Gut-Brain Axis (GBA).” In this review, following a general overview of ASD and GM, the interaction of Pb with GM in the context of ASD is emphasized. Potential exploitation of this interaction for therapeutic purposes is also touched upon.
Research and Application of a High-pressure, Large-flow and High-water-based Mining Digitally Controlled Unloading Valve
Authors: Zhang Xiaochun , Zhao Jiyun
Published: September 2023

In order to create a smart mine, it is necessary to digitize the existing emulsion pumping station. Existing research does not achieve this task, this paper designs and manufactures a high-pressure, high-flow, high-water-based mining digital controlled unloading valve (abbreviated as HLHMDCUV), which achieves good results in both theoretical analysis and experimental testing. In order to obtain the accurate dynamic characteristics, this valve was analyzed by simulation using AMESim. Based on the dynamic performance analysis and the flow field analysis inside the valve body, the structure has been optimized to improve the performance of HLHMDCUV. The results show that the HLHMDCUV has a better dynamic characteristics, which were also demonstrated in the experiment. At the same time, the HLHMDCUV is easy to disassemble and maintain. This paper provides a theoretical basis for the design of such valves, which is conducive to the subsequent promotion of intelligent mine transformation.
Smart City and Smart Economy: How Are the Greek Municipalities to Exploit the Smart City Benefits to Achieve Economic Development?
Authors: Siokas Georgios , Tsakanikas Aggelos
Published: September 2023

As digital technology has become an integral part of urban’s daily operations; the urban landscape is constantly evolving with the needs of its society. This new reality allowed Municipalities to exert a higher influence in the national and local economy. Through deliberate planning and executing initiatives, they can ignite the local financial ecosystem to growth. In line with this, the paper aims to understand the possibilities available to the Greek Municipalities to exploit the smart city benefits to foster economic development. It is essential to understand the role of different factors including the strategy during the planning and implementing phases of initiatives concerning economy and innovation in a smart city. To achieve this, a tailor-made questionnaire and advanced statistical techniques are applied. The main findings highlight the importance to plan initiatives aligned with the needs of the municipality and the business environment. The existence of a smart city strategy has a catalytic effect on the final impact of the implemented initiatives on the urban environment. A systematic analysis of the smart cities’ dynamics and the new state of the urban environment can help the local actors focus on the value creation and public service provision, fostering innovation and profitability.
Structural analysis of Sargassum floating barrage. First study on a standard section 50 m long illustrated by satellite imagery in Martinique
Authors: Muttin Frederic
Published: September 2023

Public health suffers from noxious gas of beached Sargassum algae. Floating barrages containing them at sea will be useful provided efficiently catch them and resist to hydrodynamic pressure. Nowadays design and installation of algae barrages are empiric. Structural break, anchor and mooring chain drifts can arise. We provide a mechanical model to evaluate stresses and loads on a structure made of nets and moorings. Hydrodynamic uncertainties occur through catches, fouling, and a range of sea currents appearing in lagoons or sheltered bays. We consider a nonlinear finite-element model of elastic membrane in large displacements and small strains. We study some forcings fixed a priori on a standard section of barrage. A section 50 m long, 1 m high, with two net-faces is examined at low and moderate current velocities, 0.05 and 0.35 m.s-1, while assuming specific vertical and horizontal catch pressures. A barrage installed in lagoon at Le François on Martinique Island and being observable by satellite imagery could benefit of the computed net and mooring tensions.
A Hydro-Powered Climate-Neutral Pump: Full Cycle Simulation and Performance Evaluation
Authors: Al Qubeissi Mansour , Beard Scott Daniel
Published: September 2023

This paper presents a parametric study of the multistorey hydro-powered pump, known as "Bunyip," which has demonstrated significant potential in contributing to rural regions. The study aims to understand the underlying physics of the system and enhance its hydraulic performance. A transient three-dimensional model using the commercial Computational Fluid Dynamics (CFD) tool Ansys-Fluent is utilized to gain insights into the fundamental flow mechanics, operational efficiency, standard capacity, and relative delivery. The investigation involves an initial assessment of performance for three Bunyip devices based on manufacturing data. Parametric analysis is conducted, and a parametric dataset is generated through meticulous application and numerical modelling. The CFD results are validated against experimental data. Three design configurations are considered, and 58 sets of varied input parameters are examined. The best design configuration is evaluated against five cases of conventional hydro-power pump systems. The results indicate that a smaller diameter of the pressure chamber and a higher supply head lead to higher pressure, achieving a target head of 3 m with 15% efficiency and a flowrate of 11.82 l/min.
Precision and Accuracy of Radiological Bone Age Assessment in Children among Ethnical Groups
Authors: Martín Pérez Sebastián Eustaquio , Martín Pérez Isidro Miguel , Vega González Jesús , Molina Suárez Ruth , León Hernández Coromoto , Rodríguez Hernández Fidel , Herrera Perez Mario Ulises
Published: September 2023

Introduction: Determination of radiological bone age (BA) is a diagnostic method that consists of estimating chronological age (CA) from the bone maturation of children. Although environmental and hormonal factors can interfere with bone ossification, the process is essentially dependent on ancestral inheritance. These ethnic backgrounds are not usually considered, which can lead to biased interpretations and inadequate decision-making by pediatricians or forensic experts. The objective of this study was to determine the precision and accuracy of these radiological procedures among different ethnic groups. Methods: A qualitative systematic review carried out following MOOSE statement and previously registered in the International Prospective Registry of Systematic Reviews PROSPERO (CRD42023449512). Search was performed in MEDLINE (PubMed) (n=561), Cochrane Library (n=261), CINAHL (n=103), Web of Science (WOS) (n=181) and public institutional repositories (n=37) from inception to 31st December 2022 using Mesh as “Diagnostic Techniques and Procedures”, “Diagnostic imaging”, “Radiography”, “Age Determination by Skeleton” and free terms combining with booleans “AND” and “OR”. PEDro scale, and Risk of Bias in non-randomized Studies of Exposure (ROBINS-E) were used to assess methodological quality and risk of bias of included studies respectively. Results: 51 articles (n=19,531) were included according to the inclusion criteria previously established. There was a good to moderate methodological quality and a high to very high risk of bias. Skeletal methods for determining BA were precised in terms of intra-observer and inter-observer reliability in all ethnic groups. Regarding to accuracy of Skeletal methods in Caucasians and Hispanic children, GPA was accurate at all ages, but in youths, TW3 RUS could be a consistent alternative. In Asian and Arab, GPA and TW3 overestimated BA in adolescents near adulthood. In African youths, GPA overestimated BA while TW3 was more accurate in estimating CA. Dental and Cervical radiographic methods are equally precise but lesser accurate than Skeletal BA determination. Conclusion: Skeletal radiographic methods GPA and TW3 are both precise for BA determination among all ethnical groups, but their accuracy in estimating CA can be altered by racial bias.
Study on the Dynamics of Microflora during Natural Fermentation of Different Blueberry Wines
Authors: Hu Boran , Su Jinghao , Zhou Min , Shaochen Xu
Published: September 2023

Abstract: Microflora play an important role in the fermentation of blueberry wine, influencing the flavor and nutrient formation. Commercial yeasts give blueberry wines an average flavor profile that does not highlight the specific aroma and origin of the blueberry. In the present study, ITS1-ITS2 region sequencing analysis was performed using Illumina MiSeq high-throughput technology to sequence fermented blueberry wine samples of three Vaccinium ashei varieties, Gardenblue, Powderblue, and Britewell, from the Majiang appellation in Guizhou province to analyze the trends of fungal communities and the diversity of compositional structures in different periods of blueberry wine fermentation. The study's results revealed that 114 genera from 7 phyla were detected in 9 samples from different fermentation periods of blueberry wine. The main fungal phyla were Ascomycota, Basidiomycota, Kickxellomycota, Chytridiomycota, and Olpidiomycota. The main fungal genera were Hanseniaspora, Saccharomyces, unidentified, Aureobasidium, Penicillium, Mortierella, Colletotrichum, etc. Hanseniaspora was dominant in the pre-fermentation stage of blueberry wine, accounting for more than 82%; Saccharomyces was the dominant genera in the middle and late fermentation stages of blueberry wine, with Saccharomyces accounting for more than 72% in the middle of fermentation and 93% in the late fermentation stage. This study screened indigenous flora for the natural fermentation of blueberry wine in the Majiang production area of Guizhou, improved the flavor substances of the blueberry wine, highlighted the characteristics of the production area, and made the blueberry wine have the characteristic flavor of the production area.
Poria cocos (Schw.) Wolf, a Traditional Chinese Edible Medicinal Herb, Promotes Neuronal Differentiation and Maturation of Neural Stem/Progenitor Cells
Authors: Jiang Xia , Hu Zhaotun , Qiu Xiaoyan , Wu Liming , Zhou Rong , Yang Yaoyao , Xiang Xiaoliang
Published: September 2023

Neurogenesis in the adult brain plays a major role in the cognitive ability of animals including learning and memory. Poria cocos (Schw.) Wolf (P. cocos) has been known as a traditional Chinese edible medicinal herb with the potential effect to improve learning and memory. However, the effect mechanisms are still elusive. In this study, significant neuronal differentiation-promoting activities of the ethanol extracts of P. cocos (EEPC) were tested in Neuro-2a cells and mouse cortical neural stem/progenitor cells (NSPCs). Subsequently, 97 compounds of EEPC were identified using UHPLC-Q-Exactive-MS/MS. After investigation of neuronal differentiation-promoting activities of 4 major compounds (Ethyl palmitoleate, L-(-)-Arabitol, Choline and Adenosine), only Choline has significant neuronal differentiation-promoting activity. In summary, we investigated the neuronal differentiation-promoting activity and chemical compositions of EEPC, the study of the neuronal differentiation-promoting effect of ether extract of P. cocos indicated P. cocos’s positive effect on learning and memory functions. This is the first investigation of the neuronal differentiation-promoting effect of ether extract of P. cocos based on similar research references.
Meteorological and Hydrological Drought Risks under Future Climate and Land Use Land Cover Change Scenarios in the Yellow River Basin
Authors: Li Yunyun , Huang Yi , Fan Jingjing , Zhang Hongxue , Li Yanchun , Wang Xuemei , Deng Qian
Published: September 2023

The assessment and prediction of drought risk under future climate change and land use land cover (LULC) scenarios is critically important for drought prevention and mitigation, as it enables a clearer understanding of potential shifts in drought patterns. The primary aim of this study is to evaluate sub-seasonal and seasonal meteorological and hydrological drought hazards across the Yellow River Basin (YRB) under projected future climate conditions and LULC patterns. The BCC-CSM1-1 climate model projections from the NASA Earth Exchange Global Daily Downscaled Projections (NEX-GDDP) dataset are utilized to represent future climate for 2025-2060 under RCP 4.5 and 8.5 scenarios. The CA-Markov model is employed to predict future LULC distributions. Meteorological and hydrological drought risks across different YRB zones are evaluated through a copula-based risk assessment approach, based on the joint probability distribution of drought duration and severity. The results indicate that sub-seasonal meteorological and hydrological droughts will likely be the primary concern moving forward. Specifically, the upper YRB (zones A, B, C) exhibits greater vulnerability to sub-seasonal meteorological drought, while the Loess Plateau (zones C, E) shows higher susceptibility to sub-seasonal hydrological drought. Moreover, zone F in the downstream region may experience increased seasonal hydrological drought risk due to projected urban expansion in the middle and lower portions of the YRB.
PERBANDINGAN ANALISIS EMOSIONAL PENGGUNA TWITTER PADA PEMINDAHAN IBU KOTA INDONESIA MENGGUNAKAN ALGORITMA NAÏVE BAYES DAN SUPPORT VECTOR MACHINE
Authors: Shinta Fadhilahsari  , Widodo  , Hamidillah Ajie
Published: September 2023

Pada tahun 2019 pemerintah mewacanakan pemindahan Ibu Kota Republik Indonesia dari Jakarta ke Kalimantan. Hal itu membuat ramai masyarakat memberi opini mereka, yang banyak tertuliskan dalam media sosial Twitter yang biasa disebut tweet. Tweet tersebut dapat diolah untuk menggambarkan bagaimana opini pengguna Twitter akan suatu topik pemindahan Ibu Kota Indonesia. Penelitian ini bertujuan untuk mendapatkan analisis sentimen menggunakan algoritma Naive Bayes Classifier dan Support Vector Machine. Metode penelitian yang digunakan pada penelitian ini adalah menghitung akurasi dan error rate dari masing-masing algoritma, kemudian membandingkannya. Data yang digunakan adalah dataset sebanyak 2,100 tweet. Hasil penelitian dari kedua algoritma, berdasarkan akurasi dari Naive Bayes Classifier adalah 94.96% dan Suppor Vector Machine adalah 95.19%, jika berdasarkan error rate Naive Bayes Classifier adalah 4.505% dan Support Vector Machine adalah 4.81%. Sehingga dapat disimpulkan bahwa algoritma Support Vector Machine memperoleh nilai akurasi tertinggi dan dianggap sebagai algoritma lebih baik dibandingkan algoritma Naive Bayes pada analisis sentimen.
PROSES ASSOCIATION RULE UNTUK MENGETAHUI KECENDERUNGAN BELANJA PADA KOPMA UNJ MENGGUNAKAN ALGORITMA APRIORI DAN ECLAT
Authors: Nurul Nisa Habibah  , Widodo  , Bambang Prasetya Adhi
Published: September 2023

KOPMA UNJ merupakan wadah bagi mahasiswa UNJ yang ingin mempelajari usaha dengan asas koperasi. KOPMA UNJ yang memiliki usaha cukup banyak namun belum mampu mengolah data transaksi yang cukup besar untuk mengetahui aturan keranjang belanja atau aturan asosiasi belanjaan yang dibeli oleh pelanggan. Hal inilah yang melatarbelakangi penelitian dilakukan. Tujuan dari penelitian ini adalah untuk mengetahui hasil analisis proses association rule untuk menentukan kecenderungan belanja pada KOPMA UNJ. Metode penelitian yang digunakan pada penelitian ini adalah penelitian eksperimen laboratorium dengan teknik Association Rule menggunakan algoritma apriori dan eclat. Data yang digunakan adalah data transaksi KOPMA UNJ yang terletak di gedung P, Kampus A. Algoritma dengan nilai confidence besar dan running time yang kecil  dianggap baik dalam membentuk association rule. Hasil yang didapat dari penelitian ini yaitu pelanggan KOPMA UNJ dengan nilai confidence 1,0 pasti membeli air mineral baik aqua 600 ml maupun ades 600 ml dan menggunakan jasa print logo jika menggunakan jasa jilid dengan nilai confidence 0,534. Selain itu dalam sisi kinerja dihasilkan bahwa algoritma eclat lebih cepat yaitu kurang dari 1 sekon dibanding algoritma apriori yang membutuhkan waktu lebih dari 34 sekon dan lebih baik dalam membentuk aturan asosiasi.
PENGEMBANGAN MODUL FRONT-END WEBSITE SISTEM MANAJEMEN ASET UNIT PELAYANAN TEKNIK TEKNOLOGI INFORMASI DAN KOMUNIKASI UNIVERSITAS NEGERI JAKARTA
Authors: Muhammad Emirzaki  , Hamidillah Ajie  , Diat Nurhidayat
Published: September 2023

UPT TIK UNJ yang setiap harinya sangat tergantung dengan aset IT yang mereka miliki sehingga harus bisa mengelola aset IT yang berada di bawah naungan UPT TIK UNJ. Dalam pelaksanannnya UPT TIK belum mempunyai sistem manajemen aset sehingga masih banyak aset IT yang hilang dan rusak, maka sistem manajemen aset UPT TIK UNJ dibutuhkan, namun belum adanya pengembangan user interface pada sistem manajemen aset UPT TIK yang bertujuan utuk memudahkan pengguna dalam mengakses sistem manajemen aset UPT TIK. Hasil pengembangan dari user interface berupa prototype dalam bentuk high-fidelity prototype yang dibangun menggunakan library React JS dan metode pengembangan waterfall. Prototype ini nantinya akan diuji secara objektif dan subjektif. Pada pengujian objektif menggunakan usability testing yang akan didapatkan penilaian pada aspek efektivitas, efisien, dan kepuasan. Penilaian aspek efektivitas didapatkan pada task success rate dan error rate sebesar 1,00 dan 0,2. Pada aspek efisien dihitung number of clicks dan time per completed task mendapatkan nilai 6,95 dan 24,88 detik. Pada aspek kepuasan digunakan kuesioner SUS yang mendapat nilai rata-rata 86. Pada penilaian subjektif disebarkan kusioner UEQ. Kuesioner UEQ memiliki keenam aspek yang diukur mendapat penilaian nilai daya tarik sebesar 2,79, nilai kejelasan sebesar 2,44, nilai efisiensi sebesar 2,56, nilai ketepatan sebesar 2,38, nilai stimulasi 2,81, dan nilai kebaruan 2,44. Hal ini menunjukkan bahwa desain rekomendasi user interface yang dibuat diterima oleh pengguna untuk digunakan pada sistem manajamen aset UPT TIK UNJ.
The use of native vegetation for structural stability in dredged material placement areas : a case study of Beneficial Use Site 4A, Chocolate Bayou, Brazoria County, Texas
Authors: Sekoni Tosin , Eberle Mark , Durham Brian , Balazik Matthew
Published: September 2023

This technical note is the third in a series about using native plant communities to enhance dredge material placement areas (DMPAs), confined disposal facilities (CDFs), and projects where dredged sediments are used for various engineering purposes. DMPAs and CDFs occur in numerous locations spanning different geographic locations nationwide. Oftentimes, these containment dikes are constructed using earthen materials. The materials are either barged in from an off-site location or obtained on-site from new or virgin materials, consisting of heavy clay particles and sediments removed from the nearby channel. In the Gulf Coast region of the United States, new or virgin materials are obtained during channel deepening activities using mechanical or hydraulic dredging methods. Examples of these dredging methods include hopper dredge, pipeline dredge, and excavator or bucket dredge. When materials are considered suitable for beneficial use purposes, and following environmental compliance, the materials are often used to construct containment dikes in DMPAs and CDFs. The project site used in this study—Beneficial Use Site 4A (BUS 4A)—used dredged material during its construction and has periodically received dredged material to maintain its target elevation of 2 ft (0.67 m) above the mean lower low water; hence, this site presents an opportunity for use as a demonstration study. Project goals include (1) demonstrating the use of native plant communities to provide structural stability, (2) introducing targeted vegetation establishment on DMPAs and CDFs as a management strategy to improve engineering and environmental outcomes, and (3) providing technology transfer to the U.S. Army Corps of Engineers (USACE) districts through hands-on planting techniques and installation of natural material (in this demonstration, coir logs).
Evaluation Of Hydraulic Fracture Performance in a Complex Stress Environment in Pakistan
Authors: Shaoul J. , Boucher A. , Park J. , Tkachuk I. , Makos M. , Gorniak M. , Wahab I. , Akhtar J. , Hussain M. , Koprianiuk M. , Sirati M.
Published: September 2023

Propped fracture stimulation of gas wells has a long history of both successes and failures in Pakistan. The operator is actively developing tight gas reservoirs which include the Cretaceous Pab Formation. In recent years, this field has been subjected to an intense drilling and stimulation program with the objective to increase gas production from the tight Pab sandstone. One significant issue is the highly complex geo-mechanical situation, due to strike-slip stress regime which leads to very high fracturing pressures and the potential for fracture growth both vertically and horizontally. This paper is a case study of the evolution of propped fracturing strategy in an existing gas field, looking in detail at 4 wells that have been stimulated over the last seven years. In addition to analyzing the fracture treatment data, the pre- and post-frac welltest and long-term production data are also analyzed to better understand the fracture performance and the issues that affect post-fracture performance in a reservoir with such high stresses and normal (or depleted) reservoir pressure.

The analysis uses an integrated approach, with history matching of both the fracture treatment data and the pre- and post-frac welltests and long-term production. The basis of the integrated approach is a reservoir description with one set of permeabilities that is used for both types of analysis, to ensure that the fracture analysis results and reservoir simulation results are consistent with each other.

The fracture treatments in these four wells all share a pattern of very high closure stress gradients (close to overburden gradient), low fluid efficiency and a significant risk of screenout. Post-fracture production is close to expectation in most of the wells, although there are issues with the initial post-frac performance during the cleanup period, consistent with the effect of multi-phase non-Darcy flow. Resin Coated Proppant (RCP) was used in two of the wells, and may have had a negative effect on the initial production (choke or mechanical skin effect) as described in a previous publication by the authors (Shaoul, 2020). Two of the wells were vertical and two were deviated, which also has an effect on the post-fracture performance.

There are very few published case studies of propped fracture stimulation from Pakistan, which has a unique and difficult geo-mechanical situation. This paper also compares the hydraulic fracturing results in Pakistan with a few other locations around the world where similar behavior has been seen, to give a better understanding of what can be done to improve hydraulic fracturing in these difficult reservoirs, either by trying to prevent some problems that can be avoided and by accepting that some problems are inherent in such a reservoir can only be partially mitigated by changing fracture design style and fracture design goals.
Study on Fracture Propagation Simulation with the Integrated Natural Fracture and Geomechanical Model
Authors: Xie Lei , Fu Lei , Li Junfei , Cai Guoqing , Chen Jing , Zhang Chunguang , Chen Liteng , Xu Gang , Zhong Yang , Zhang Jianguo , Wang Zhenpeng , Peng Shaoyun , Huang Xingning , Teng Tao.
Published: September 2023

Hydraulic fracturing technology is widely used in the oil and gas extraction industry. However, the mechanical mechanisms of fracture extension and penetration under fracturing conditions are not clear so far. On this basis, indoor tests on the evolution of hydraulic fracture extension and activation of bedding planer facets in rock specimens were conducted to analyze and explore the mechanical mechanisms statistically. The experimental results show that the observed micro-cracking in the rock specimen sections at the microscopic scale is not due to macroscopic fluid pressure, as compressive stresses are found at the micro-crack opening in the tests. In contrast, the micro-cracks are generated by the concentration of tensile stresses before extensional fracture, implying that bedding plane activation is caused by crack extension along the bedding plane. Furthermore, statistical analysis of micro-crack lengths shows that the rocks exhibit anisotropy in fracture toughness and that the crack propagation resistance perpendicular to the bedding plane is as much as two times greater than that parallel to the bedding plane.
The Evolution of Fracture Surface Parameters in Heterogeneous Carbonate Reservoirs Employing Chelating Agents as Acid Fracturing Fluids
Authors: Al-Abdrabalnabi Ridha , Aljawad Murtada Saleh , Al Ramadan Mustafa , Khan Hasan J. , Mahmoud Mohamed
Published: September 2023

Acid fracturing is one technique for increasing carbonate formation productivity. The injection of acid causes dissolution along the fracture, which results in conductivity. The success of the acid fracturing process is influenced by several factors, including acid type, acid concentration, formation type, and contact time. Many fluids have been examined for their ability to maintain conductivity, beginning with strong acids such as hydrochloric acid (HCl) and progressing to weak acids such as organic acids. The main issues with HCl are its rapid and strong reactions, as well as its ability to corrode wellbore tubular.

This research investigated the impact of chelating agents such as GLDA and DTPA on acid fracturing stimulation to maintain fracture conductivity in heterogeneous carbonate formations formed of calcite and dolomite. At reservoir temperature, chelating agents are less reactive than HCl and do not require a corrosion inhibitor. the image illustrations were observed using a laser profilometer prior to and after acid treatment. The fracture conductivity was measured before and after acid etching with a core-flooding system at various flow rates and closure stresses.

The results show that chelating agents improved fracture conductivity sufficiently when compared to HCl for layered carbonate formation. Remarkably, DTPA softened the rock and made change in surface roughness more than GLDA, while GLDA improved fracture conductivity more than the other one. the reason behind this is that DTPA smashed the fracture surface uniformly in some areas instead of generating channels like HCl and GLDA, resulting in a non-significant improvement in fracture conductivity when compared to the other two acids.

For the first time, chelating agents were investigated and tested as acid fracturing fluids on heterogeneous carbonate reservoirs to generate sustainable conductivity.
First Successful Hydraulic Fracture Treatment Offshore Abu Dhabi – Implementation of Pseudo-Stable Fracturing Fluids as a Key to Awaken Deep Pre-Khuff Clastics Production Performance
Authors: Buijs H. , Singh A. , Nuriakhmetov R. , Alam A. , Ao Taliwati , Bulekbay A. , Vazquez A. , Basioni M. , Alloghani J. A. , Al Hammadi A. E. , Al Kindi R. K. , Al Aryani F. M. , Bregar U. B. , Hassan A. M. , Alkindy M. , Vo M. , El-sayed M. , Ruiz C. Sirlupu
Published: September 2023

This paper describes the application of pseudo-stable fracturing fluids as a key technology to improve fracture conductivity and production performance in the first successful hydraulic fracture treatment pumped offshore Abu Dhabi. The primary target reservoir is the Pre-Khuff clastics Fm., a deep tight gas sandstone that can be found at depths exciding 16,000 ft with temperatures above 350° F.

Even though our industry has a long-standing history in fracture stimulating high temperature reservoirs, the rheological behavior of fracturing fluids for optimum performance still remains to be highly controversial. It is well-known that at elevated temperatures fracturing fluids tend to prematurely break, losing its viscosity alongside the capability to transport proppant and develop fracture width that may lead to early treatment termination. What is rarely mentioned is that fracturing fluids break spontaneously at high temperature in oxygen rich environments (such as in a laboratory) nevertheless, when there is a lack of oxygen, fluids do not break effectively. Reservoirs are strong oxygen reducing environments because of the presence of iron, organic matter and hydrocarbons, having a negative effect on fracturing fluid rheology degradation, fluid cleanup and fracture conductivity. At the same time, there is still little consensus regarding the rate and magnitude of thermal exchange between the fracturing fluid and the reservoir high temperature conditions that will affect its rheological properties. Contrary to popular belief, fracturing fluids do not heat up to reservoir conditions as fast as suggested by many software applications and there is no need for large viscosity stability windows to efficiently transport proppant without premature screenouts.

In this case history, a physics-based fracturing fluid design was utilized to successfully place ~ 100 tons treatments implementing a 15 minutes viscosity stability window which, under traditional standards, will not survive harsh downhole conditions and temperatures over 350° F. Post-frac production increased by 500%, reaching stable commercial rates after the first fracture treatment, proving that the implemented fluid design philosophy is correct and extremely efficient in developing high performing fracture treatments.