This work presents a systematic comparative evaluation of sugarcane bagasse-derived activated carbons from Kennana Sugar Company—Sudan, chemically activated using KOH and H₃PO₄ and composited with natural zeolite, for the adsorption of Pb(II) ions from aqueous media. The adsorption process exhibited optimal performance under mildly acidic conditions (pH 5.0 - 6.0). Equilibrium data were analyzed using Langmuir and Freundlich isotherm models, with both models showing strong ...

Physical Chemistry 

Driven by rising social productivity and electronic media development, commercial children’s literature has spawned the “Yang Hongying Phenomenon”, featured by huge divergence between market popularity and academic criticism. Publishers and readers praise Yang Hongying’s works for catering to children’s reading demands, while literary critics argue her creations suffer from weak literariness, colloquial narration and superficial thematic expression. Yang Hongying defends her writing relying on s...

Literature 

Vulvar carcinoma is a relatively uncommon gynecological malignancy, accounting for approximately 5% of all female genital tract cancers and predominantly affects postmenopausal women. Survival rate observed to be approximated up to the 70% of cases, although with the presence of other comorbidities, it may worsen its morbidity and mortality. Magnificent appearance of either non healing ulcerative or inguinal mass ulcerated for those with diabetes cases could be contradicted as a persistent vulva...

Women’s Health 

Against the backdrop of in-depth advancement in educational digital transformation, digital interactive tools, as crucial carriers for creating immersive learning scenarios and stimulating students’ learning initiative, are gradually being integrated into primary school classrooms. However, current applications generally suffer from single forms, insufficient alignment with students’ cognitive laws, and unsatisfactory immersive learning effects. The gaps in hardware and teaching resources betwee...

Pedagogy 

The study and analysis of dynamical is currently important, especially in applied fields. The research presents a numerical and analytical study of the classical model for under standing the dynamic behavior of the suggested a three dimensional biomathematical autonomous system, which made up of three ordinary equations, that represent the model variables. The dynamic properties of the suggested system are verified by equilibrium points and its stability such as the roots of the characteristic e...

Numerical Mathematics  Mathematical Analysis  Dynamical System 

The biometric study of freshwater prawns provides essential insights into growth dynamics, ecological adaptation, and aquaculture potential. This research investigated the length-weight relationship (LWR), growth patterns, and condition factor (K) of Macrobrachium sollaudii across three forest streams (Agbukode, Alibuku, and Mai-Pembe) in the Lubuya-Bera sector, Tshopo Province, Democratic Republic of Congo. A total of 348 individuals were analysed between June and August 2025. Sta...

Environmental Sciences 

Green hydrogen is increasingly promoted as a key vector for deep decarbonisation and energy system transformation, particularly in regions endowed with abundant renewable resources. However, its economic viability remains highly context dependent and sensitive to system design and financing conditions. Many green hydrogen projects continue to struggle to reach final investment decision due to high production costs and low electrolyser utilisation, despite rapid growth in announced capacity. This...

Electric Engineering 

The deficiency of public policy relating to the artisanal timber sector in Tshopo in the Democratic Republic of Congo is a major factor fueling socio-environmental externalities. The results observed in this Province revealed that these externalities are more negative than positive and therefore contribute to local underdevelopment in the exploitation areas. For this consideration, this article aims to show that the internalization of these externalities is one of the effective policies both for...

Economics  Sociology 

Multi-stakeholder dialogue in the agricultural and rural sector is an expression of implicative and collaborative relationships between public service actors and other stakeholders. For it to have a positive impact on the development of public policies in this field, the nature of this dialogue, far from being formalistic, must promote the internalization of values, the sense of responsibility and duty of each party. As such, this article seeks to show how the relationships of satisfactory compr...

Demography  Economics  Sociology  Anthropology 

Energy issues remain a critical concern in the Democratic Republic of Congo (DRC), particularly in rural areas, where access to electricity is still limited due to weak public policies in this area. In Tshopo Province, specifically in the ABATA Grouping, observations indicate relatively low adoption of photovoltaic systems and a preference for them over other energy systems due to cost, ease of energy supply, and associated benefits.

Sociology