The Role of Museums, Monuments and Sites to the Development of Cultural Heritage Tourism Entrepreneurship in Tanzania

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Museums, Monuments and Sites are currently becoming the hub of business enterprises. Besides the well-known core functions and roles of the Museums, monuments and Sites throughout the world, that includes but not limited to acquisition, conservation, preservation, researches and awareness rising though educational programs and exhibitions, recently the scope and the roles of museums, monuments and sites have been extended to the development of cultural tourism entrepreneurship. Griffin (2002) in the Kenneth Myer Lecture put it clear that the ultimate goal of entrepreneurship in museums must be the enhancement of the visitors’ experience of interaction with the authentic object and the increase in understanding and knowledge. In Tanzania for instance business enterprises, corporate institutions, companies, start-up organizations and individual entrepreneurs have been working together with museums, monuments and sites in their ventures to furnish the needs of their companies, visitors and partners. This paper therefore, intends to unearth various ventures, products and opportunities offered as the Cultural tourism entrepreneurship in Tanzania through Museums, Monuments and Sites. Although the predominant applications of entrepreneurship in museums seem to consist in diversifying income, financing through entrepreneurial endeavors, or stepping into business-like activities (Högberg & Jogmark, 2021; Toepler, 2006), being commercial and entrepreneurial does not necessarily mean deviating from the museum’s core values. As Brenton and Bouckaert’s argue (2021, p.725), “financial entrepreneurial museums are also progressive, ethical, and innovative”. Thus, to make this study easier simple random sampling and observation techniques were used as the tools to collect data and analyse them descriptively.

Optical Transmission Spectra of Pb_(0.80) Sr_(0.20) TiO_3/Pb_(0.90) Sr_(0.10) TiO_3 Compositional Graded Ferroelectric Thin Films

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This study looks at the optical transmission properties of ferroelectric thin films made from two different compositions of lead strontium titanate:  and . The films were created using a method called metallo-organic decomposition (MOD) combined with spin coating on quartz substrates. The researchers analyzed the optical properties by recording transmission spectra from 300 to 1500 nm. They found that the films were highly transparent in the longer wavelength range and that their optical characteristics varied significantly with grain size. By deriving the refractive index, extinction coefficient, and absorption coefficient from the spectra, the team demonstrated that these films have promising applications in electro-optic devices, photodetectors, and photonic sensors. Overall, this work showcases the progress made in creating and studying lead strontium titanate thin films, highlighting their versatile optical features.

Effect of Stirring Circulation on the Effectiveness of Microbial Consortium in Sludge Oil Bioremediation Process

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Sludge oil is a by-product of crude oil processing that poses significant environmental and efficiency challenges in the oil and gas industry. This study aims to evaluate the effectiveness of using microbial consortia to address sludge oil, with a focus on the impact of agitation on oil recovery enhancement. An experimental and laboratory analysis approach was employed to implement bioremediation for cleaning sludge oil from crude oil tanks. Factors such as agitation conditions, types of microorganisms, environmental conditions, and handling time were evaluated to understand their effects on oil recovery efficiency. The experiment compared two conditions: microbial consortia in agitated and non-agitated systems. The results showed that the use of microbial consortia in an agitated system was significantly more effective in reducing sludge oil and enhancing oil recovery compared to the non-agitated system. Agitation was found to improve microbial circulation and nutrient distribution, contributing to an increase in sludge oil degradation by up to 17.1%. However, the success of this method was also influenced by the composition of the sludge oil and environmental conditions. This research contributes to the development of more effective solutions for managing sludge oil and improving oil recovery in the oil and gas industry. The results of this experiment can serve as a foundation for further research on optimizing bioremediation for different operational conditions and supporting environmental sustainability.

Behavior-Based Purchase Intent Prediction in E-Commerce: A Machine Learning Approach

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This study investigates the use of machine learning to predict user purchase intentions based on behavioral data in a multi-category e-commerce platform. By analyzing seven months of user interaction logs—comprising product views, cart additions, and purchases—the research applies feature engineering to generate variables such as event weekday, product category levels, session activity count, and cart-to-view ratios. Four classification models were developed and evaluated: logistic regression, decision tree, random forest, and gradient boosting. Among these, the Random Forest algorithm outperformed the others, achieving the highest accuracy and F1-score, effectively balancing precision and recall. The results demonstrate that machine learning can reliably predict purchase intent and support more targeted marketing, personalized recommendations, and improved conversion strategies in e-commerce environments.

Nasal Hemangioma and the Importance of Preoperative Embolization: Case Report and Literature Review

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Nasal hemangioma is a rare benign vascular neoplasm, yet clinically significant due to its hemorrhagic potential within a richly vascularized anatomical region. Its therapeutic management requires a multidisciplinary approach, particularly in cases indicated for surgical resection. Preoperative arterial embolization has proven to be an effective tool for controlling intraoperative bleeding, facilitating complete excision, and improving surgical outcomes. This review addresses the epidemiological, clinical, and therapeutic aspects of nasal hemangioma, with emphasis on the role of endovascular embolization as a fundamental component of pre-surgical strategy and in this case, as a definitive treatment.

Puff of Smoke’ In A Young Brain: A Classic Imaging Sign of Moyamoya Disease – Case Report

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Moyamoya disease is a rare and progressive cerebrovascular disorder marked by the occlusion or blockage of the distal internal carotid arteries and their main branches. In response, the brain develops a network of fragile collateral vessels, which appear as a “puff of smoke” on angiographic imaging—a characteristic feature that inspired the disease’s name. The condition primarily affects children and young adults, often presenting with transient ischemic attacks, strokes, seizures, or cerebral haemorrhage. Although the underlying mechanisms are not fully understood, genetic factors, particularly mutations in the RNF213 gene, have been closely associated with disease susceptibility, The major susceptibility gene for moyamoya disease in people investigation into the mechanisms of disease and potential treatment targets. The Arg4810Lys variant of the gene is most strongly associated with moyamoya disease, but the penetrance is lower than 1%, suggesting a synergistic relationship with additional environmental and genetic risk factors. A 11-year-old female patient presented with the complaints of sudden onset of left upper limb and lower limb transient weakness associated with bowel incontinence patient has  a past medical history of seizures since 10 months with multiple seizure episodes Diagnostic evaluation typically involves magnetic resonance imaging, magnetic resonance angiography, and digital subtraction angiography, the latter of which remains the gold standard. Treatment strategies are primarily surgical, with revascularization procedures—either direct, indirect, or combined approaches—aimed at improving cerebral blood flow and reducing the risk of ischemic events . Based on laboratory investigations and radiological reports case was diagnosed as MOYAMOYA DISEASE preoperative and anaesthesia clearance patient was taken up for STA-MCA bypass (Superficial Temporal Artery to Middle Cerebral Artery Bypass) associated  treatment with perivascular sympathectomy and superior cervical ganglionectomy may be useful but more investigation needs to be carried out into the pathogenesis of the disease before more definitive therapy is realized.

This review outlines the latest developments in the understanding, diagnosis, and management of Moyamoya disease, with attention to its genetic background and surgical outcomes.

Legal Certainty in the Management and Supervision of Donations for Humanitarian Purposes in Indonesia

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The rapid progress of information technology has greatly enhanced public fundraising via donation-based crowdfunding platforms that use social media and digital channels. This innovation expands public access and fosters community involvement in social initiatives, yet it functions within a framework of legal ambiguity due to the lack of specific regulations governing the mechanisms, oversight, and accountability of online donation activities in Indonesia. This study seeks to examine the operational procedures of donation-based crowdfunding in Indonesia, identify regulatory deficiencies, and provide legislative remedies to enhance protection for contributors, platform operators, and recipients. This study utilizes a qualitative normative research technique, using legislative and conceptual methods, to analyze existing legislation and various instances of purported donation fund misappropriation. Research reveals that existing regulations, including Law No. 9 of 1961, Government Regulation No. 29 of 1980, and Minister of Social Affairs Regulation No. 8 of 2021, inadequately address the contemporary realities and risks of the digital donation landscape, leading to transparency deficiencies, opportunities for fraud, and diminished legal accountability. This thesis asserts that legislative change, enhanced supervisory mechanisms, and extensive legal literacy initiatives are essential to guarantee that donation-based crowdfunding functions in a reliable, responsible, and sustainable way within Indonesian society.

Generator of Electric Current without rotating according to the New Axioms and Laws

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The Theory of new Axioms and Laws contains 2 new Axioms and 8 Laws and it is by the same author. The classical axiom (Maxuell 1864) states that one closed vortex has constant velocity and it explains the Classical Field Theory. In contrast, the first new   Axiom1 asserts that an open vortex has always a changing speed and it explains the new Theory of Open vortices.  The Law1 describes that   the electron is generated by a self -decelerating  transverse open vortex in direction  from out to in that is like open input. It generates inward (in2D) in its Gravity center a perpendicular self-accelerating longitudinal vortex upward (in 3D). Because generating transverse vortex is strongly self-decelerating the electron becomes to eccentric toroid. The Geometric center of body moves from to a new Gravity   center that is in second quadrant. Thus the distance between these centers forms a Vector of Eccentricity. The Vector of Eccentricity lies on    diameter of this toroid. Along this diameter on side of Gravity center, the distance between the transverse windings is minimal, and on the opposite side of diameter – the distance is maximal. Pulsating in time the electron emits a larger electric wave from place of   the maximum distance, but a smaller one -from the side with minimum distance, Therefore, the resultant Electric wave moves in direction of towards the maximal distance that coincides open input of the electron.

If pulsating electrons are phased with their open inputs towards one and the same end of a Conductor then their predominant radiation towards that end. It cause the movement of Electric wave to the this end. Thus the Electric wave flows inside to this end and Electric current – on surface of Conductor to its opposite  end.

The author proposes  the Induction to be achieved without  movement of the Conductor or the Magnetic field. The scientists can implant on the surface of Conductor a dense nano-grid emitting impulse Magnetic field. The pulsating lines of force of the Magnetic field hit the pulsating electrons and thus electrons rotate. The rotating continues until most of the electrons in the conductor order and phased their perpendicular vectors parallel and unidirectional to the external magnetic lines. Thus open inputs most likely point towards one and the same end of the Conductor.

Therefore the phenomenon Induction of Electric current is connected with phasing of the electrons along the 3 axes. The existence of the phenomena Induction are direct evidence of exactly this structure of the electron according Theory of new Axioms and Laws. Ecxactly  the inner structure of the electron is the reason  it   to react  the outer impact of   the lines of  external Magnetic field  in this kind. Therefore electron reacts like a particle or cell possessing some internal sensitivity and external reflex.

The Development of RBL-STEAM Learning Design to Improve Climate Change Literacy Through the Construction of Energy-Efficient Houses in Sixth Grade of Elementary School Students

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Climate change literacy is essential for preparing future generations to understand environmental challenges and take an active role in mitigation and adaptation efforts. This study aims to enhance students’ climate change literacy through the development of Research-Based Learning (RBL) integrated with the STEAM approach, which combines Science, Technology, Engineering, Arts, and Mathematics. Students were engaged in the construction of energy-efficient house projects that incorporated simple electrical circuits, allowing them to apply scientific concepts in a meaningful context. The study employed a research and development methodology using the 4D model, which consists of the stages Define, Design, Develop, and Disseminate. The developed learning materials included lesson plans, student worksheets (LKPD), and a climate change literacy test. A sequential exploratory mixed-methods design was implemented, beginning with qualitative data collection and analysis, followed by quantitative data collection and analysis. The study was conducted at SDN Banjarwungu 2 as the experimental group and SDN Gempolklutuk as the control group. The findings indicate that the RBL-STEAM learning materials are valid, practical, and effective in improving students’ understanding of the causes, impacts, and potential solutions to climate change. The study concludes that integrating RBL-STEAM with project-based learning activities can significantly enhance climate change literacy in primary education.

Chemical synthesis and applications of Gold nanoparticles

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The range of scientific and technical uses for nanoparticles makes it evident how important nanotechnology is in today’s world. Gold nanoparticles are among the many metal nanoparticles that can be produced using a variety of methods. This review article emphasizes the fundamental methods of chemical synthesis for gold nanoparticles, exploring their production processes and diverse applications. The data for the research was gathered through a review of existing literature. The Brust-Schiffrin method is a significant approach for synthesizing gold nanoparticles (AuNPs). In this technique, two reaction pathways are employed to achieve an efficient surface reaction during the formation and growth process. AuCl4− is transferred from the aqueous phase to toluene and subsequently reduced by sodium borhydrate (NaBH4) in the presence of dodecanethiol. The adaptable surface chemistry of AuNPs enables them to be coated with small molecules, polymers, and biological recognition molecules, thus expanding their scope of use. The size of AuNPs can be regulated during synthesis and functionalization with various chemical groups. They have the ability to accumulate in tumor cells, exhibit optical scattering, and serve as probes for microscopic studies of harmful cells. Additionally, AuNPs are employed in cancer therapy and diagnosis. Furthermore, they hold significant promise in catalysis, as their surfaces facilitate interactions between reactants and the catalytically active sites on gold nanoparticles.