bluuebunny/crossref_metadata_2025 huggingface dataset:
Partial substitution of coal with palm kernel in cement kilns: effects on cement production and quality
Authors: Tshibola Kalamba Harlene , Ikotun Bolanle Deborah , Patel Bilal
Published: November 2024

The production of Portland cement is a complex process involving several chemical reactions and different materials, complex systems, and high temperatures (up to 1500 °C). Traditional fossil fuels such as coal, petroleum coke and natural gas have been used as primary source of energy for the process, though still abundant, their supply is slowly being depleted, and costs associated with obtaining these fuels are increasing with time. Therefore, alternative fuels such as biomass waste (palm kernel, rice, and coffee husks etc.) or processed waste materials (refuse derived fuel, waste tires, waste plastics, used oil etc.) and other types of waste have gained much interest recently in cement industries as they present a potential substitution option. In order to achieve the aim of this study, chemical and physical properties of both coal and PK have been determined and compared. Results show that the PK has an average calorific value ranging from 18-20 MJ/kg which is significantly acceptable and means that the waste can directly be used as fuel in the cement kiln for clinker production. Coal thermal substitution rate was progressively increased depending on the process conditions with the reference case for each kiln run (2% in August 2021, 3% in September 2021 and 5% in January 2022). Impacts on the product quality and process, benefits in terms of emissions and production cost were evaluated and discussed. Technical challenges encountered during the coal and palm kernel milling process and combustion process have been identified and possible solutions have been recommended.
Optimization of Calcined Beans Pod Ash – Cement Blended Concrete Mix Using Taguchi Method
Authors: Joseph Oluwatoyin P , Adedeji Adeola A , Olubunmi Mokuolu A , Jonathan Alomaja A , Ajadi Emmanuel O
Published: November 2024

This study investigated the optimization of calcined beans pod ash (BPA) - cement concrete mix using the Taguchi method. Concrete is a widely used building material with various performance requirements. These requirements are mostly influenced by concrete constituent materials and mixtures proportion obtained from concrete mix design. But improper mix design can result in inherent defects or local imperfections, which can significantly deteriorate the performance properties of concrete and jeopardize the structural integrity and durability of concrete structure. Taguchi method of optimization was employed to address these challenges. It involves identifying key factors (water – cement ratio, percentage of BPA – cement replacement, fine to total aggregate ratio and super-plasticizer dosage), selecting suitable levels for these factors, and conducting experiments to determine the optimum combination of factors. The effects of these variables on concrete slump flow (SF), compressive strength (Fcu), and split tensile strength (Fy) were evaluated. The results of SF, Fcu and Fy of BPA – cement concrete show significant improvement of 23.74%, 21.72% and 21.43% respectively, when cement was partially replaced with BPA from 5% to 20%. Likewise, an improvement of 5.97%, 5.69% and 5.37% for SF, Fcu and Fy of BPA – cement concrete, when the dosage of super-plasticizer in concrete mix was varied from 6% to 12%. A respective optimal parameter combination for BPA – cement concrete slump and strengths were obtained at 0.40, 5%, 0.4, 6 ml/kg of cement and 0.35, 5%, 0.4, 6 ml/kg of cement for W-C, BPA, F-T Agg, SP respectively.
Intervention Methodology for the Rehabilitation of Damaged Reinforced Concrete Structures
Authors: Bouabdallah Moulaï Abdellah
Published: November 2024

The quantity of aging concrete infrastructure deteriorating rapidly is increasing, as are the costs of repairing these structures. The management of interventions on reinforced concrete structures is not always optimal. This is due to the absence of a comprehensive protocol capable of uniformly guiding engineers in their choices regarding the priority and types of work to be carried out on their structures. This lack of decision-making assistance results in interventions that are not always optimal in terms of costs and durability. It is therefore important to establish a diagnostic methodology in order to properly specify the origin of the damage. This will improve the interpretation of defect symptoms and therefore facilitate the subsequent choice of actions and materials required during the intervention on the structure.
This study presents a methodology developed with the aim of standardizing, rationalizing, and integrating the different stages required to achieve optimal and quality interventions into a management tool. Three activities are essential in order to systematize the approach to refurbishment or maintenance of concrete structures: the diagnosis of deterioration, the evaluation of the relevance of interventions, and the selection of appropriate methods and products for refurbishment.
Experimental and Numerical Study of Mechanical Properties of Concrete Containing Biochar
Authors: Odeyemi S.O , Adisa M.O , Olawale M.A , Abdulsalam A.O , Oloba J.A , Ibrahim H.A , Sanusi B.O , Eda J.O , Obisiji F.O
Published: November 2024

The production of cement is responsible for 7% of worldwide CO2 emissions, leading to environmental threats and harm to ecosystems. Given the significant expenses involved and the necessity for substitutes such as biochar, there is a critical focus on investigating supplementary cementing materials (SCMs) to partially substitute traditional materials. The use of biochar as a concrete admixture is becoming more popular, and it has been investigated as a building material. Biochar is a solid organic residue produced by the pyrolysis of biomass. The experiment aimed to determine the mechanical characteristics of biochar-containing concrete using a concrete grade M20, cube moulds of dimension 100mm x 100mm x 100mm; cylinder moulds of 100mm x 200mm and beam formwork of dimension 150mm x 150mm x 1000mm were used to cast the control concrete sample and concrete containing varying percentages of biochar. Finite element analysis was also carried out using the ABAQUS program, utilizing concrete properties discovered through experimental study. The numerical and experimental study revealed that elevating the proportion of biochar in concrete led to about 17% decrease in compressive strength, 40% reduction in tensile strength, and about 25% reduction in the flexural strength of concrete beams. Both numerical and experimental approaches proved successful in assessing the influence of biochar on concrete.
Probabilistic slope stability analysis: a case study of Ain Bouzian landslide within North-East Algeria
Authors: Ghedjati Samir , Lamara Mohammed , Houmadi Youcef
Published: November 2024

The aim of this study is to carry out a probabilistic analysis of slope stability within homogenous soil profile of Ain Bouzian landslides located north-east Algeria. This region suffers of many instability problems, which is aggravated during the construction of East-West motorway. The random variables for the soil considered in this study are the Young modulus E, cohesion C and friction angle φ. Stochastic soil properties values are used to evaluate the reliability and to assess sensitivity of the system, for two hydrological conditions, with and without water table within the soil mass. The deterministic model is based on Strength Reduction Method (SRM) analysis using the finite difference code FLAC3D.
Properties of construction material based-Diss fibers: Physico-mechanical characterisation
Authors: Zaid Ismahen , Merzoud Mouloud , Benazzouk Amar
Published: November 2024

In the building sector, issues related to sustainable development have become a major concern. The choice of materials has fundamental importance since it has a considerable influence on the energy consumption of the building and also on the overall environmental impact of the construction. Materials reinforced with vegetable fibres and/or particles are currently considered amongst the most promising materials in sustainable engineering technologies due to their several potential applications. In addition to its sustainable credentials, the application of these elements is interesting as they exhibit a set of important advantages, such as wide availability at relatively low cost, bio-renewability, ability to be recycled, biodegradability, non-hazardous nature, zero carbon footprint, and interesting hygro-thermal and mechanical properties.
The viability of using vegetable Diss fibers for developing a sustainable lightweight construction material was investigated in this paper. The produced specimen contained 4/1 volume ratio of Diss fibers to Binder. In order to mitigate the inhibitory effect exerted by vegetable materials on binder hydration, Diss fibers were treated with hot water, while air lime-based Tradical PF70 binder has been selected to replace traditionally used cementitious binder. The study conducted on hardened material properties has indicated that despite a significant reduction in mechanical strength, the material exhibits higher residual stress that highlighted a ductile behaviour, compared to the reference specimen containing neat binder without Diss fibers.
Tensile strength of multi-material bolted double lap joints under static loading
Authors: Bensaad Saoussane Bachi , Mazari Mohamed , Lahlali Otmane
Published: November 2024

This paper aims to study the mechanical behavior and failure mode of Al 6082-T6 & Polyvinyl Chloride (PVC) in double-lap bolted joints. To accomplish this, the effect of geometric parameters was investigated using ABAQUS/Standard. Multi-material bolted assemblies have recently gained increasing attention in the aerospace engineering field, due to enhanced design possibilities and positive size effects with regard to decreasing ply thickness. In this paper, the mechanical behavior of polymer and aluminum alloy bolted joints with double‐lap bolted structure under quasi‐static loading was studied numerically. In general, double lap joints were found to have greater load carrying capacities than single bolt joints (by 40%–49%). Also, double bolt joints with wider plates (increased width) can beneficially shift the failure mode from net-tension to bearing. The geometric parameters were found to play an important role in controlling the failure mode so that catastrophic failure modes of net-tension and shear-out can be prevented in bolted joint.
Cerebrovascular-Specific Extracellular Matrix Bioink Promotes Blood–Brain Barrier Properties
Authors: Han Hohyeon , Lee Sooyeon , Gao Ge , Yi Hee-Gyeong , Paek Sun Ha , Jang Jinah
Published: November 2024

Chronic neuroinflammation is a principal cause of neurodegenerative diseases such as Alzheimer’s disease and Parkinson’s disease. The blood–brain barrier predominantly comprises endothelial cells, and their intercellular communication with pericytes and other cell types regulates neuroinflammation. Here, we develop a tubular, perfusable model of human cerebrovascular tissues to study neurodegenerative diseases using cerebrovascular-specific extracellular matrix bioink, derived from a complementary blend of brain- and blood-vessel-derived extracellular matrices. The endothelial cells and pericytes in the bioprinted constructs spontaneously self-assemble into a dual-layered structure, closely mimicking the anatomy of the blood–brain barrier. Moreover, the mature cerebrovascular tissue shows physiological barrier functions and neuroinflammatory responses, indicating its potential for developing models of neuroinflammation-related pathologies. Collectively, our study demonstrates that furnishing a cerebrovascular-specific microenvironment can guide the cells to have native-like anatomical relevance and functional recapitulation in vitro.
Multi-Section Magnetic Soft Robot with Multirobot Navigation System for Vasculature Intervention
Authors: Li Zhengyang , Xu Qingsong
Published: November 2024

Magnetic soft robots have recently become a promising technology that has been applied to minimally invasive cardiovascular surgery. This paper presents the analytical modeling of a novel multi-section magnetic soft robot (MS-MSR) with multi-curvature bending, which is maneuvered by an associated collaborative multirobot navigation system (CMNS) with magnetic actuation and ultrasound guidance targeted for intravascular intervention. The kinematic and dynamic analysis of the MS-MSR’s telescopic motion is performed using the optimized Cosserat rod model by considering the effect of an external heterogeneous magnetic field, which is generated by a mobile magnetic actuation manipulator to adapt to complex steering scenarios. Meanwhile, an extracorporeal mobile ultrasound navigation manipulator is exploited to track the magnetic soft robot’s distal tip motion to realize a closed-loop control. We also conduct a quadratic programming-based optimization scheme to synchronize the multi-objective task-space motion of CMNS with null-space projection. It allows the formulation of a comprehensive controller with motion priority for multirobot collaboration. Experimental results demonstrate that the proposed magnetic soft robot can be successfully navigated within the multi-bifurcation intravascular environment with a shape modeling error

3.62
±

1.28
∘

and a tip error of

1.08
±
0.45

mm

under the actuation of a CMNS through in vitro ultrasound-guided vasculature interventional tests.
Conjugated Ladder Polymers: Unique Organic π-Conjugated Materials for Optoelectronics, Transistors, and Energy Harvesting and Storage
Authors: Chong Kok Chan , Tam Teck Lip Dexter , Tao Ran , Chin Kang Le Osmund , Chua Ming Hui , Xu Jianwei
Published: November 2024

Conjugated ladder polymers (cLPs) are polymers consisting of continuous fused aromatic rings with π conjugation along their backbone. This unique structure imparts cLPs with exceptional thermal, mechanical, and electrochemical stability, as well as notable optical and electrical properties due to their rigid, planar structures. Since the seminal work on the synthesis of high-molecular-weight, solution-processable poly(benzimidazobenzophenanthrolinedione) in 1969 by F. E. Arnold and R. L. Van Deusen, many cLPs have been developed for a variety of applications. This review focuses on both the synthesis and applications of cLPs for energy harvesting and storage devices, organic optoelectronics, and organic transistors. The former includes several facile synthetic methods, postsynthetic treatments, various characterization, and postprocessing of cLPs, focusing on film fabrication. The latter focuses on numerous applications, including organic thermoelectrics for energy harvesting, battery electrodes and organic supercapacitors for energy storage, and organic optoelectronics, including organic light-emitting diodes, organic photovoltaics, organic electrochromics, and organic photodetectors. It also covers organic transistors like organic field-effect transistors and organic electrochemical transistors. The review concludes with potential challenges and outlooks on cLPs in many organic electronics areas, offering a comprehensive perspective on their future development and potential.
Multi-Modal CLIP-Informed Protein Editing
Authors: Yin Mingze , Zhou Hanjing , Zhu Yiheng , Lin Miao , Wu Yixuan , Wu Jialu , Xu Hongxia , Hsieh Chang-Yu , Hou Tingjun , Chen Jintai , Wu Jian
Published: November 2024

Background:
Proteins govern most biological functions essential for life, and achieving controllable protein editing has made great advances in probing natural systems, creating therapeutic conjugates, and generating novel protein constructs. Recently, machine learning-assisted protein editing (MLPE) has shown promise in accelerating optimization cycles and reducing experimental workloads. However, current methods struggle with the vast combinatorial space of potential protein edits and cannot explicitly conduct protein editing using biotext instructions, limiting their interactivity with human feedback.
Methods:
To fill these gaps, we propose a novel method called ProtET for efficient CLIP-informed protein editing through multi-modality learning. Our approach comprises 2 stages: In the pretraining stage, contrastive learning aligns protein–biotext representations encoded by 2 large language models (LLMs). Subsequently, during the protein editing stage, the fused features from editing instruction texts and original protein sequences serve as the final editing condition for generating target protein sequences.
Results:
Comprehensive experiments demonstrated the superiority of ProtET in editing proteins to enhance human-expected functionality across multiple attribute domains, including enzyme catalytic activity, protein stability, and antibody-specific binding ability. ProtET improves the state-of-the-art results by a large margin, leading to substantial stability improvements of 16.67% and 16.90%.
Conclusions:
This capability positions ProtET to advance real-world artificial protein editing, potentially addressing unmet academic, industrial, and clinical needs.
Palladium-Based Nanocomposites Remodel Osteoporotic Microenvironment by Bone-Targeted Hydrogen Enrichment and Zincum Repletion
Authors: Liu Lubing , Liu Huiying , Lu Xiaoya , Yin Zhengshuai , Zhang Wei , Ye Jing , Xu Yingying , Weng Zhenzhen , Luo Jun , Wang Xiaolei
Published: November 2024

Osteoporosis presents a marked global public health challenge, characterized by deficient osteogenesis and a deteriorating immune microenvironment. Conventional clinical interventions primarily target osteoclast-mediated bone damage, yet lack a comprehensive therapeutic approach that balances bone formation and resorption. Herein, we introduce a bone-targeted nanocomposite, A-Z@Pd(H), designed to address these challenges by integrating diverse functional components. The nanocomposite incorporates internal hydrogen-carrying nanozymes, which effectively scavenge multiple reactive oxygen species (ROS) and synergistically engage the autophagy–lysosome pathway to accelerate endogenous ROS degradation in macrophages. This mechanism disrupts the vicious cycle of autophagic dysfunction–ROS accumulation–macrophage inflammation. In addition, external metal–organic frameworks release zinc ions (Zn
2+
) in response to the acidic osteoporotic environment, thereby promoting osteogenesis. In a murine model of osteoporosis, intravenous administration of A-Z@Pd(H) leads to preferential accumulation in the femur, thereby remodeling the osteoporotic microenvironment through immune regulation, osteogenesis promotion, and osteoclast inhibition. These findings suggest that this system composed of hydrogen therapy and ion therapy may be a promising candidate for bone-targeted comprehensive therapy in osteoporosis.
The gift of health promotion in a celebration: A descriptive observational study of community baby showers on YouTube
Authors: Jawed Aysha , Gardiner Colin
Published: November 2024

Introduction: Although community baby showers have persisted as a global health promotion practice for infants and their families over the past decades, to date there is no study that has evaluated coverage and engagement of community baby showers across social media as a rising global health communication medium in this contemporary digital era. It follows that the goal of this study sought to fill this gap by examining the existing state of coverage for community baby showers on social media utilizing view count as an engagement metric. Methods: In this cross-sectional, descriptive and observational study, we conducted a content analysis of the top 100 most widely viewed videos populated on YouTube at one conceptual point in time that covered community baby showers. to determine the most prevalent sources, formats, and content represented across this sample of videos. Results: Many of the videos were published by nongovernmental / organizational sources (n=86) and among them, the majority were in the form of news reports (n=59). Content across these videos presented a diversity of community stakeholders and entities involved in the development and implementation of community baby showers, many which were both for-profit and non-profit organizations (n=72). There was substantial coverage of a wide range of resources and services for prenatal and postnatal care delineated across all of the videos in this sample. Several videos (n=39) covered increased support building for families of infants. Notably, these videos cumulatively generated a low number of views (N=73,036) which yields clinical, educational, and public health implications. Conclusion: Recommendations to partner with news organizations and utilize content that generated greater viewership as facilitators in increasing capacity to reach, engagement and impact of community baby showers are presented to optimize infant health outcomes, reduce infant mortality, and heighten access to resources and support for infants and their families worldwide.
Beyond information literacy: Why metaliteracy is crucial for modern health education programs
Authors: Zarei Fatemeh , Adivi Sridevi
Published: November 2024

Metaliteracy is a critical skill that enables individuals to evaluate information for bias, accuracy, and truthfulness, and construct knowledge. The paper argues that metaliteracy is essential in modern health education, and not only information literacy. Metaliteracy enables health educators to critically appraise health information thereby promoting accurate knowledge dissemination. It also enhances the core skills of health educators by allowing them to maneuver through the "infodemic," debunking misinformation and creating usable health advices. By embracing metaliteracy, health education may protect public health and elevates its professional standing.
Greening of the national tax system
Authors: Jalinik Mikołaj , Cieślukowski Maciej , Przybylska Joanna
Published: November 2024

Greening the tax system is one of the tools for achieving sustainable development. Domestic literature on the subject presents various suggestions for the improvement of the tax system in Poland. This paper attempts to make a general assessment of the extent of the Polish tax system environmental reform implemented between 2007 and 2021. The paper has a literary and empirical character. The empirical analysis was conducted using descriptive statistics methods. The assessment is mainly based on selected indicators: pro-ecological solutions in traditional taxes, the number of ecological taxes in the tax system, the fiscal efficiency of ecological taxes measured as a share in total tax revenues, and the economic importance of the examined taxes measured as a share in GDP. A comparative analysis of the national ecological levy system with the tax systems of EU countries was also conducted. A review of selected general taxes shows certain pro-environmental solutions but also solutions that seem controversial from the point of view of environmental protection and human life and that do not encourage entrepreneurs and consumers to be more environmentally friendly. A positive observation, on the other hand, was an increase in the number of environmental taxes and charges. However, these are still far less important from the economic and fiscal perspective compared to conventional taxes. The decarbonisation process of the economy and, the increase in public spending during the 2008 financial crisis and the crisis caused by the COVID-19 pandemic are not conducive to the greening of the tax system.
Yeni Bir Eğitim Modeli Önerisi: Yeterlilik Bazlı Modüler Afet Hemşireliği Eğitimi
Authors: Arslan Hediye , Çakır Gökçe Naz , Demirkan Selin , Baş Zeynep
Published: November 2024

Afetler bireyi, aileyi ve toplumu biyopsikososyal yönden olumsuz olarak etkileyen, dünyada ve ülkemizde gerçekleşme sıklığı giderek artan oldukça ciddi toplumsal olaylardır. Sağlık sektörü çalışanları içerisinde en geniş payı oluşturan hemşirelerin amacı afet öncesi, sırası ve sonrasındaki tüm basamaklarda etkin rol alarak nitelikli hemşirelik bakımını sürdürmektir. Bu nitelikli bakımın sağlanmasının temel koşulları ise hemşirelerin afet sürecindeki rol ve sorumluluklarının tanımlanması ve hemşirelere afet konusunda gerekli bilgi ve becerileri kazandıracak yeterlilik bazlı bir afet hemşireliği eğitiminin sağlanmasıdır. Bu nedenle afetlerde görev alacak hemşirelerin görev, yetki ve sorumluluklarının ortaya konulması ve afet hemşireliği alanına yönelik özelleştirilmiş bir eğitimden geçmeleri konusunda harekete geçilmesi gerekmektedir. Lisans düzeyinde verilen ve her hemşirenin potansiyel bir afet hemşiresi olarak mezun olacağı bir eğitim programı ile yetişmiş hemşireler, afetlerin önlenmesi ve hazırlığı, afet sırasında müdahale, afet sonrası rehabilitasyon süreçlerinde, toplumun ihtiyaç duyduğu bakım ve hizmeti etkin bir şekilde sağlayabilirler. Ülkemizde afet hemşireliğinin lisans düzeyinde standardize edilmiş bir eğitim uygulaması bulunmamasıyla birlikte, literatürde afet hemşireliği eğitimine rehberlik edecek yeterlilik bazlı model sayısı ise oldukça azdır. Bu nedenle bu makale, hemşirelerinin afet sürecindeki rol ve sorumlulukların tanımlanması ile ülkemizde afet hemşireliği eğitiminin lisans düzeyinde verilebilmesine yönelik yeterliliklere dayalı bir eğitim modeli önerisi geliştirilmesi amacıyla yazılmıştır
2023 Kahramanmaraş Depremi Sonrası Etkilenen Bazı İllerde Hava Kalitesi Değerlerinin Karşılaştırılması
Authors: Ergin Yusuf , Demiray Gamze , Ergin Berna Büşra , Ekuklu Galip
Published: November 2024

Bu çalışmanın amacı, 6 Şubat 2023 Kahramanmaraş depremi sonrası depremden en çok etkilenen 5 ilde deprem sonrası ilk 3 aydaki hava kalitesi parametrelerinin Dünya Sağlık Örgütü (DSÖ) limit değerleri ve 2022 yılının aynı aylarındaki değerleri ile karşılaştırılmasıdır. Tanımlayıcı tipteki araştırmada, depremden en fazla etkilenen 5 ile (Kahramanmaraş, Hatay, Gaziantep, Adıyaman, Malatya) ait 18 hava izleme istasyonunun hava kalitesi verileri, Çevre, Şehircilik ve İklim Değişikliği Bakanlığı’na (ÇŞİDB) ait internet sitesinden 2022 ve 2023 yıllarına ait şubat, mart ve nisan ayları için elde edilmiştir. Hava kalitesi parametrelerinden partiküler madde 10 (PM 10), PM 2.5, SO2, NO, NO2, NOx, CO ve O3 değerleri her iki yılın aynı ayları arasında ve DSÖ günlük limit değerleri ile karşılaştırılmıştır. 6 Şubat depremi sonrası depremden etkilenen yerleşim birimlerinin hava kalitesi parametrelerinde büyük ve anlamlı değişikliklerin olduğu tespit edilmiştir. Birçok istasyonda hava kirleticilerinin ve partiküler madde miktarlarının bir önceki yıla göre arttığı saptanmıştır. Artış izlenen bazı istasyonlarda DSÖ limitlerinin de aşıldığı izlenmiştir.
Keefektifan Media Flipbook pada Model Inkuiri Terbimbing dalam Meningkatkan Hasil Belajar Peserta Didik Kelas XI MIPA SMA Negeri 7 Sidrap (Studi pada Materi Pokok Larutan Penyangga)
Authors: Hartati Hartati , Djangi Muhammad Jasri , Syahrir Muhammad
Published: November 2024

ABSTRAK
Media flipbook merupakan buku elektronik yang dijadikan sebagai bahan ajar dalam pembelajaran. Karakteristik yang dimiliki media ini yaitu menampilkan efek transisi dan dapat menyisipkan objek audiovisual. Media flipbook digunakan pada tahap orientasi sebagai stimulus dan tahap pengumpulan data untuk mencari informasi dalam model inkuiri terbimbing. Penelitian ini adalah penelitian deskriptif yang bertujuan untuk mengetahui keefektifan media flipbook pada model inkuiri terbimbing dalam meningkatkan hasil belajar peserta didik kelas XI MIPA 1 SMA Negeri 7 Sidrap pada materi pokok larutan penyangga. Subjek penelitian adalah kelas XI MIPA 1 yang berjumlah 25 peserta didik. Pengambilan data dilakukan dengan menggunakan tes hasil belajar, lembar observasi dan angket. Data tersebut dianalisis menggunakan statistik deskriptif. Hasil analisis deskriptif menunjukkan hasil belajar dengan rata-rata 33,58 sebelum perlakuan menjadi 77,90 dengan rata-rata gain ternormalisasi 0,66 yang berada pada kategori sedang. Berdasarkan data tersebut dapat disimpulkan bahwa penggunaan media flipbook pada model pembelajaran inkuiri terbimbing efektif dalam meningkatkan hasil belajar peserta didik kelas XI MIPA 1 SMA Negeri 7 Sidrap pada materi pokok larutan penyangga.

ABSTRACT
The flipbook media is an electronic book that used as teaching material in leraning. The characteristics of this media are that can displays transition effects and insert audiovisual objects. Flipbook media is used at the orientation stage as a stimulus and at the data collection stage to find information in guided inquiry model.This research is descriptive research which aims to find how high the effectiveness of the flipbook media on the guided inquiry model in improving the students’ learning outcomes of class XI MIPA 1 SMA Negeri 7 Sidrap on the buffer solution material subject. The subject of this research is class XI MIPA 1 which consists of 25 students. Data collection was carried out using learning outcomes tests, observation sheets, and quistionnaire. The data were analyzed using descriptive statistics. The results of descriptive analysis showed learning outcomes with an average of 33.58 before treatment to 77.90 with an average normalized gain of 0.66 which was in the medium category. Based on these data, it can be concluded that the use of flipbook media in the guided inquiry learning model is effective in improving the learning outcomes of students in class XI MIPA 1 SMA Negeri 7 Sidrap on the buffer solutions material subject.
Pengaruh Jurnal Belajar dalam Model Problem Based Learning terhadap Hasil Belajar Peserta Didik Kelas XI MIPA SMAN 6 Makassar (Studi pada Materi Pokok Kelarutan dan Hasil Kali Kelarutan)
Authors: Amaliah Maurizka , Ramdani Ramdani , Danial Muhammad
Published: November 2024

ABSTRAK
Penelitian ini adalah penelitian eksperimen semu yang bertujuan untuk mengetahui pengaruh jurnal belajar dalam model problem based learning terhadap hasil belajar peserta didik kelas XI MIPA SMAN 6 Makassar pada materi pokok kelarutan dan hasil kali kelarutan. Populasi dalam penelitian ini adalah peserta didik kelas XI MIPA SMAN 6 Makassar yang terdiri dari enam kelas. Kelas yang terpilih sebagai kelas eksperimen yaitu kelas XI MIPA 6 dibelajarkan menggunakan jurnal belajar dalam model problem based learning dan sebagai kelas kontrol yaitu kelas XI MIPA 2 dibelajarkan menggunakan model problem based learning. Pengumpulan data dilakukan dengan pemberian posttest yang berjumlah 20 nomor dan lembar observasi. Data dianalisis dengan menggunakan analisis statistik deskriptif dan analisis statistik inferensial. Hasil analisis prasyarat statistik inferensial terhadap posttest hasil belajar menunjukkan bahwa data pada kelas ekperiment dan kelas kontrol terdistribusi normal dan memiliki varians yang homogen. Pada uji hipotesis diperoleh thitung> ttabel sehingga dapat disimpulkan berarti ada pengaruh jurnal Belajar dalam model problem based learning terhadap hasil belajar peserta didik kelas XI MIPA SMAN 6 Makassar pada materi pokok kelarutan dan hasil kali kelarutan.

ABSTRACT
This research was quasi experiment research that aimed to know effect of learning journal in problem based learning model toward student learning outcomes in class XI MIPA SMAN 6 Makassar on subject matter of solubility and solubility product. Population was student in class XI MIPA SMAN 6 Makassar that consist of six classes, experiment class was XI MIPA 6 that though learning journal in problem based learning model and control class was XI MIPA 2 that though problem based learning model without learning journal. Collected data of reasearch conducted with give posttest 20 numbers and observation sheet. Result of analysis prerequirement of inferential statistic toward posttest result, show that data in experiment class and control class were normal and it has heterogen varians. In hypothesis test, with tcount> ttable which means that there is an effect of learning journal in problem based learning model toward student learning outcomes in class XI MIPA SMAN 6 Makassar on subject matter of solubility and solubility product.
ANALISIS HASIL BELAJAR FISIKA DITINJAU DARI HASIL TES FORMATIF PESERTA DIDIK YANG DIAJAR DENGAN MENGGUNAKAN MICROSOFT TEAMS
Authors: Murtopo Nur Awalya , Nurhayati Nurhayati , Sari Salmiah
Published: November 2024

Jenis penelitian ini merupakan deskriptif kuantitatif dengan metode survey bertujuan untuk mengetahui gambaran hasil belajar fisika peserta didik yang diajar dengan menggunakan Microsoft Teams di SMAN 11 Pinrang pada tahun ajaran 2021/2022 dan mengetahui gambaran respon peserta didik terhadap penggunaan Micrososft Teams tersebut. Variabel dalam penelitian ini yaitu hasil belajar fisika. Populasi mencakup kelas XI MIPA SMAN 11 Pinrang tahun ajaran 2021/2022. Teknik pengambilan sampel yang digunakan yaitu purposive sampling dan terpilih 76 peserta didik. Data hasil penelitian diperoleh berdasarkan dokumen tenaga pendidik dan pembagian angket respon peserta didik. Teknik analisis data menggunakan statistik deskriptif. Berdasarkan hasil analisis data diperoleh gambaran hasil belajar pada ulangan harian 1 dan 2 peserta didik berada pada kategori cukup dengan persentase secara berurutan sebesar 30% dan 25%. Jika ditinjau berdasarkan nilai KKM ulangan harian 1 terdapat 24 peserta didik yang tuntas sedangkan ulangan harian 2 terdapat 9 peserta didik yang tuntas. Adapun hasil angket respon peserta didik terhadap penggunaan Microsft Teams pada indikator 1 dan 2 berdasarkan kriteria interpretasi menunjukkan respon yang positif.
FABRIKASI BRIKET BERBASIS SEKAM PADI DAN TEMPURUNG KELAPA
Authors: Asrah Riska Nurihwatul , Jasruddin Jasruddim , Sulistiawaty Sulistiawaty
Published: November 2024

Fabrikasi briket berbasis sekam padi dan tempurung kelapa telah dilakukan. Studi ini bertujuan untuk mengetahui bagaimana pengaruh komposisi bahan dasar briket sekam padi dan tempurung kelapa terhadap kualitas briket  yang difabrikasi. Fabrikasi briket dalam penelitian ini dilakukan dengan tiga variasi campuran yaitu 100g SP + 300g TK, 200g SP + 400g TK, dan 300g SP + 300g TK. Pengujian dilakukan untuk mengetahui lama waktu pemakaian dan nilai kalor dari briket, dari tiga variasi campuran didapatkan waktu pembakaran terlama mencapai 130 menit dengan lama waktu penyalaan awal, yaitu 2 menit. Hal ini dapat dipengaruhi oleh kerapatan dan kandungan air pada briket. Nilai kalor juga mempengaruhi kualitas dari briket. Hasil analisis nilai kalor, diketahui briket yang telah difabrikasi dengan campuran tempurung kelapa dan sekam padi berkisar 1.663 kalori hingga 2.105 kalori. Hal ini disebabkan oleh komposisi campuran, briket dengan campuran tempurung kelapa lebih banyak dari sekam padi memiliki nilai kalori lebih besar.. Kata Kunci : Briket; Sekam padi; Tempurung kelapa
VALUASI GUA LEANG LONRONG KAWASAN KARST PANGKEP TAMAN NASIONAL BANTIMURUNG SEBAGAI KAWASAN WISATA MANDIRI
Authors: Jaya Nur Azizah , Arsyad Muhammad , Susanto Agus
Published: November 2024

Penelitian ini adalah penelitian deskriptif kuantitatif yang bertujuan untuk menjelaskan valuasi sumber daya air serta pemanfaatan air sungai bawa tanah yang berkelanjutan di Kawasan Gua Leang Lonrong. Data yang digunakan data sekunder berupa data Debit Air tahun 2015-2020 yang diperoleh dari Balai Besar Wilayah Sungai Pompengan Jeneberang (BBWS). Kemudian menganalisis data debit air harian untuk menghitung besarnya ketersediaan air di Sungai Leang Lonrong dengan menghitung nilai rata-rata debit air harian selama 6 (enam) tahun kemudian membuat plot grafik air harian pada Microsoft excel 2016. Selanjutnya melakukan prediksi debit air pada sumber air di Sungai Leang Lonrong untuk meramalkan pola yang akan datang dengan pendekatan model ARIMA dengan cara melakukan Uji Stasior data, mencari model ARIMA, melakukan pengujian ARIMA dan melakukan peramalan (prediksi) berdasarkan data debit air yang diperoleh untuk melihat ketersediaan Air Sungai Bawah Tanah di Gua Leang Lonrong. Hasil analisis debit air berdasarkan hasil prediksi (2021-2024) di Kawasan Gua Leang Lonrong memiliki debit air tertinggi pada bulan Desember tahun 2024 sebesar 4,41 /s atau 139,1 /tahun sedangkan debit air terendah terjadi pada bulan September tahun 2021 sebesar 2,81 /s atau 88,63 /tahun ini menunjukkan bahwa keberlanjutan ketersediaan air selalu ada tiap tahunnya sehingga daya dukung air ditentukan oleh kemampuan ketersediaan air ini berarti bahwa hasil pengolahan data yang diperoleh tidak sesuai dengan teori ini dikarenakan debit air sungai Leang Lonrong dapat berubah-ubah menurut curah hujan dan keadaan biofisik DAS.Kata Kunci:Leang Lonrong, Wisata Mandiri, Debit Air
HUBUNGAN MOTIVASI DAN AKTIVITAS BELAJAR DENGAN HASIL BELAJAR FISIKA PESERTA DIDIK SMAN 9 MAKASSAR
Authors: Kasimuddin Muh. Suryadi , Ali Sidin , Helmi Helmi
Published: November 2024

Penelitian ini bertujuan untuk (1) memperoleh gambaran motivasi belajar, aktivitas belajar, dan hasil belajar fisika peserta didik SMAN 9 Makssar, (2) menganalisis hubungan antara motivasi belajar dengan hasil belajar fisika peserta didik SMAN 9 Makassar, (3) menganalisis hubungan antara aktivitas belajar dengan hasil belajar fisika peserta didik SMAN 9 Makassar, (4) menganalisis hubungan antara motivasi belajar dan aktivitas belajar secara bersama-sama dengan hasil belajar fisika peserta didik SMAN 9 Makassar. Metode dalam penelitian ini adalah metode survey. Sampel diperoleh melalui multistage random sampling diperoleh ukuran sampel 80 peserta didik dari 242 populasi. Pengumpulan data menggunakan instrumen tes berupa tes hasil belajar dan instrumen non tes berupa lembar kuesioner motivasi belajar dan aktivitas belajar. Teknik analisis data yang digunakan adalah analisis deskriptif, analisis regresi sederhana dan analisis regresi ganda. Hasil penelitian diperoleh skor rata-rata motivasi belajar fisika sebesar 181,61 dan skor rata-rata aktivitas belajar fisika sebesar 159 menunjukkan bahwa motivasi belajar dan aktivitas belajar fisika berada pada kategori tinggi. Sedangkan skor rata-rata hasil belajar fisika diperoleh 11,99 yang berada pada kategori sedang. Selanjutnya hasil penelitian diperoleh (1) tidak terdapat hubungan positif yang signifikan antara motivasi belajar dengan hasil belajar, (2) tidak terdapat hubungan positif yang signifikan antara aktivitas belajar dengan hasil belajar, (3) tidak terdapat hubungan positif yang signifikan antara motivasi belajar dan aktivitas belajar secara bersama-sama dengan hasil belajar fisika peserta didik SMAN 9 Makassar.
KEMAMPUAN BERPIKIR KRITIS DALAM PENYELESAIAN SOAL-SOAL FISIKA KELAS XI SMA PONDOK PESANTREN PUTRI YATAMA MANDIRI
Authors: Siti Hasti  , Kaharuddin  , Bunga Dara
Published: November 2024

Penelitian ini adalah penelitian deskriptif yang bertujuan untuk mengetahui kemampuan berpikir kritis peserta didik dalam penyelesaiaan soal-soal fisika kelas XI SMA Pondok Pesantren Putri Yatama Mandiri pada tahun ajaran 2021/2022. Adapun varibel dalam penelitian ini yaitu kemampun berpikir kritis peserta didik. Sampel penelitian yaitu peserta didik kelas XI SMA Pondok Pesantren Putri Yatama Mandiri yang berjumlah 45 orang. Indikator kemampuan berpikir kritis yang diteliti meliputi memberikan penjelasan sederhana, interpretasi, inferensi, defenisi masalah dan penerapan masalah. Data hasil penelitian diperoleh dengan cara memberikan tes kemampuan berpikir kritis. Teknik analisis data yang digunakan adalah analisis statistik deskriptif. Berdasarkan hasil dan pembahasan dapat disimpulkan bahwa kemampuan berpikir kritis dalam penyelesaian soal-soal fisika kelas XI SMA Pondok Pesentren Putri Yatama Mandiri berada pada kategori sedang yaitu sebesar 51,24. Hal ini menunjukkan bahwa kemampuan berpikir kritis dalam penyelesaiaan soal-soal fisika kelas XI SMA Pondok Pesantren Putri Yatama Mandiri mampu menyelesaikan lebih dari 50% soal yang diberikan.
Morphological and anatomical study of flowering shoots of Crataegus flabellatа (Bosc ex Spach) K. Koch
Authors: Andreeva Yuliya A. , Kurkin Vladimir A. , Pravdivtseva Olga E. , Zhavkina Tatyana M. , Pomogaybin Aleksandr V.
Published: November 2024

Aim – to carry out a morphological and anatomical study of Crataegus flabellata (Bosc ex Spach) K. Koch.
Material and methods. Leaves, shoots and flowers of the Crataegus flabellata collected at the flowering stage in the Botanical Garden of Samara University were used in the work. Micro-preparations of air-dry raw materials were immersed in an alcohol-water-glycerin mixture (1:1:1). Microscopic examination was carried out in transmitted and reflected light using a Carl Zeiss Primo Star 415500-0057-000 digital microscope (Imaging Software for Microscopy ZEN core V2.7).
Results. The study of anatomical and morphological properties of dried flowering shoots showed that the most characteristic feature of the shoots Crataegus flabellata (Bosc ex Spach) K. Koch is the presence of multicellular glands and simple unicellular hairs along the edge of leaf plates, bracts and sepals. In addition, the number of stamens in the flower is from 5 to 12.
Conclusion. Microscopy of dried flowering shoots of the Crataegus flabellata (Bosc ex Spach) K. Koch was described for the first time. The morphological and anatomical analysis of flowering shoots of Crataegus flabellata (Bosc ex Spach) revealed similarities and differences with other species of the genus (Crataegus L.).
O problemach antropologów literatury
Authors: Gomóła Anna
Published: November 2024

Recently, the use of the term “anthropology of literature” has been growing in the fields of social anthropology and language studies. As a result, it has become increasingly vague. The aim of this text is to survey the current Polish views on the anthropology of literature, both in practice and theory.
Narrativa de ensino a partir da produção de Guias Turísticos desenvolvidos por aprendizes de português como língua estrangeira
Authors: Santos Fernanda , Tosatti Natália
Published: November 2024

Esta narrativa de ensino tem como objetivo abordar a importância da proposição de atividades interculturais que, além de favorecerem aproximação cultural, conduzem a uma educação do entorno (Maher, 2007). A ação aqui apresentada foi desenvolvida no contexto do ensino de português como língua estrangeira em uma instituição de Educação Profissional Técnica de Nível Médio em Minas Gerais. Nesta narrativa de ensino, descreveremos e discutiremos um projeto realizado no curso Pré-Pec-G, que explorou Guias Turísticos produzidos pelos alunos estrangeiros. O referencial teórico é fundamentado na abordagem de ensino centrada no aluno (Kumaravadivelu, 2008), na interculturalidade no contexto educacional (Maher, 2007) e nos conceitos de cultura e identidade de Hall (2016). O projeto evidenciou a evolução das habilidades de comunicação dos estudantes estrangeiros e promoveu a interação entre alunos brasileiros e estrangeiros dentro da instituição em que a atividade foi realizada.
Implications of Municipal Boundary Determination on Social Integration of Diverse Communities in South Africa
Authors:   University of South Africa, NETSWERA MPFARELENI MAVIS , NETSWERA MPFARELENI MAVIS ,   University of South Africa
Published: November 2024

This article scrutinises social integration from a local government perspective. It argues that the determinations and re-determinations of municipal areas compromise the inclusion and social boundaries that communities set for themselves. This article seeks to prove this claim through a comparative look at two case studies, namely, the Collins Chabane and the JB Marks local municipalities. Whereas the former resulted from the merger of two rural areas that belonged to separate municipal areas, viz Malamulele and Vuwani, the latter came to exist following an amalgamation of the then relatively more urban local municipalities of Tlokwe and Ventersdorp. Empirical evidence shows that the determination of municipal boundaries has disrupted communities’ social settings and their sense of belonging to their municipal area. It has become clear that there are still people who feel excluded from socio-economic development in their local areas. Primarily, the central proposition of this article is that municipal boundaries should consider the interests of groups of individuals who share cultural, ethnic or social ties within close proximity of each other.
Surgery on displaced depressed skull fracture overlying sigmoid sinus: Rationale, techniques, and risk management
Authors: Pramantara I Made Stepanus Biondi , Mahadewa Tjokorda Gde Bagus , Marleen
Published: November 2024

Skull fracture may occur at all parts of the skull after direct trauma. Skull fragment overlying dural venous structure, may inherit the risk of infection, thrombosis, and massive bleeding. Controversy arises among institutions whether the surgical measure is superior to the conservative option. The occurrence of depressed skull fracture overlying sigmoid sinus is seldom discussed in trauma literature, but some authors reported that the risk of infection and sepsis might occur in a delayed fashion in this group of patients. Several reports on the radiological study in depressed skull fracture overlying venous sinus found that fracture may predispose to venous sinus thrombosis. However, the risk of profuse bleeding when attempting to elevate bone fragments could place the patient into serious and devastating conditions, which need aggressive and effective bleeding control. We report a case of a middle-aged man who had a displaced depressed skull fracture overlying the right sigmoid sinus after falling from height. Surgery was performed in order to decompress the right sigmoid sinus structure and repair the cerebrospinal fluid leak at the overlying duramater. The patient was discharged from the hospital with minimal conductive hearing disturbance, with no sign of infection and neurologic deficits.
Perioperative management of a morbidly obese patient with Pickwickian syndrome who underwent herniotomy herniorrhaphy surgery
Authors: Hadiwijaya Reynaldi Reiky , Widnyana I Made Gede , Senapathi Tjokorda Gde Agung
Published: November 2024

Administering anesthesia in obese patients has its challenges. Most obese patients have multiple comorbidities with a higher risk for perioperative complications. Obese patients also have several physiological changes, including respiratory changes that could affect anesthesia. With the increasing number of obesity rates worldwide, the possibility of obese patients who need anesthesia increases, thus providing challenges for anesthetists in treating obese patients. This case described a 62-year-old male who underwent herniotomy and herniorrhaphy under general anesthesia. The patient was morbidly obese with a BMI of 54.68 kg/m2 and found to have Pickwickian Syndrome. The patient was assessed with physical state ASA III and underwent general anesthesia. The patient recovered with no complications and was discharged from the hospital three days after the surgery. In obese patients, several physiological changes could be a challenge for administering anesthesia. The choice of anesthetic agent for obese patients with Pickwickian Syndrome should be carefully selected, considering it can significantly impact the patient. The perioperative period should be focused on careful monitoring and improvement of comorbid diseases.