Digital Commons Network^™

Natural Radioactivity And Radiological Hazards In Sediments From The Lindi Coast, Indian Ocean, Tanzania, Viator Mujuni, Innocent J. Lugendo

Tanzania Journal of Science

The Lindi coast of the Indian Ocean, located in southeastern Tanzania, supports rich biodiversity and has recently experienced rapid growth in socio-economic activities such as fishing, mining, and oil and gas exploration. These activities may enhance levels of natural radioactivity in coastal sediments, potentially increasing radiation exposure to local populations. Therefore, monitoring radioactivity levels and estimating associated radiation doses in this region is important. In this study, thirty-six sediment samples were collected from twelve locations along the Lindi coast and analysed for naturally occurring radionuclides using high-purity germanium (HPGe) gamma-ray spectrometry. The activity concentrations of ²²⁶Ra, ²³²Th, and …

Concealed History Of Microplastic Pollution In The Msimbazi Estuary, Dar Es Salaam, Tanzania, Dativa J. Shilla

Tanzania Journal of Science

This study reconstructed the historical deposition of microplastics in sediments of the Msimbazi Estuary, Tanzania, using a radiometrically dated sediment core. Sediment chronology established using ²¹⁰Pb and the Constant Initial Concentration (CIC) model provided an approximately 83-year depositional record. The ²¹⁰Pb age model suggested marked temporal variability in sedimentation rates, with peaks around 1961, 1998, 2013, and 2015, potentially reflecting hydrological extremes and catchment disturbances. Anthropogenic microparticles were detected throughout most of the sediment core, with concentrations ranging from below detection limit (BDL) to 34 items kg⁻¹ dry weight (mean 8.5 ± 3.2 items kg⁻¹), and their abundance generally increased …

Re: Conditional Approval Letter For The Final Silver Bow Creek Conservation Area Materials Management Plan (Dated May 28, 2026), Emma Rott

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Umn Morris Receives Grant To Develop Tool To Monitor Ai Data Centers' Impacts On Water Quantity And Quality, Communications And Marketing

Campus News Archive

No abstract provided.

Corkscrew Motion Of Trypanosoma Brucei Is Driven By Helical Beating Of The Flagellum And Facilitated By Its Bent Shape, Sizhe Cheng, Devadyouti Das, Mykhaylo Barchuk, Raveen Armstrong, Michele M. Klingbeil, Becca Thomases, Shuang Zhou

Mathematics Sciences: Faculty Publications

Significance:

Trypanosoma brucei is a single-cell parasite causing sleeping sickness across 37 sub-Saharan countries, threatening ~60 million people. Revealing its locomotion mechanism is critical to understand its lifecycle in fly vectors and mammalian hosts; however, progress has been hindered by the rapid and complex cell deformation driven by a laterally attached flagellum. By tracking the 3D motion of fluorescent particles attached to cell surface, we demonstrate that tip-to-base helical waves generate self-propulsion like an active corkscrew, with reactive torque inducing counterrotation of the cell body. These findings inform future investigations of the underlying biomechanics, suggest potential routes for therapeutic intervention, …

Generative Endurance Logic: An Axiomatic Framework For Reasoning About Outcome-Generating Objects Under Constraints, Hafiz Burhan Ul Haq, Muhammad Nauman Irshad

Neutrosophic Systems with Applications

This paper introduces Generative Endurance Logic (GEL), a formal framework for studying objects through the outcomes they can produce. In many cases, an object cannot be judged only by a fixed truth value, score, or utility value. A rule, model, action, or strategy may behave well in one situation but fail when the context changes or when small perturbations occur. GEL addresses this issue by treating each object as a generator of outcomes. Each object a is linked to a generation map Ga:X×Ω→Y, where X is the context space, Ω is the …

Exploiting Uncertainty Of Computational Methodology In Optimizing User Interface In Human-Computer Interaction, Nada Mohamed, Alshaimaa A. Tantawy

Neutrosophic Systems with Applications

Human-computer interaction (HCI) evaluation and optimization of user interfaces (UIs) constitute a complex multi-criteria decision-making challenge, marked by conflicting evaluation dimensions, subjective expert judgments, and inherent uncertainty in user experience assessment. Traditional evaluation approaches, such as heuristic expert reviews and user satisfaction surveys, rely on sharp, binary classifications that fail to capture the gradual and overlapping nature of human cognitive and affective states. This limitation necessitates a more robust uncertainty-aware methodology that can model the true complexity of HCI evaluation. This paper proposes a hybrid mathematical model that integrates various Multi-Criteria Decision Making (MCDM) techniques of Entropy, and Simple Additive …

Interval-Valued Neutrosophic Dombi Bonferroni Mean Aggregation Operators In Medical Diagnosis And Sustainable Energy, Maryam Faisal, Muhammad Nadeem, Muhammad Kamran

Neutrosophic Systems with Applications

Medical diagnosis is one of the most difficult fields in which decisions must be made due to the fact that medical information often has characteristics of uncertainty, incompleteness, imprecision and even contradiction. Traditional aggregation and decision-making methods are often not well suited to such complexities, and may result in less reliable diagnostic outcomes. In order to overcome these drawbacks, the authors propose a new approach using a novel representation of Interval-Valued Neutrosophic Sets (IVNSs), the Dombi operational laws, and Bonferroni Mean (BM) aggregation operators. The proposed framework is specifically aimed at coping with uncertainty, indeterminacy and falsity all at once …

Recursive Neutrosophic Superhypergraphs With Illustrative Applications, Takaaki Fujita, Ajoy Kanti Das, Suman Das, Sankar Prasad Mondal, Volkan Duran

Neutrosophic Systems with Applications

Finite hypergraphs generalize ordinary graphs by permitting each hyperedge to join any nonempty set of vertices, and thus provide a natural model for truly multiway interactions. To represent hierarchical and multi-layer structure, SuperHyperGraphs iterate the powerset operation so that set-valued entities created at one level can be treated as vertices at higher levels. Independently, recursive hypergraphs allow edge recursion: an edge may contain not only vertices but also lower-level edges, yielding nested (and possibly self-referential) incidence controlled by a specified recursion depth. In this work we introduce and axiomatize Recursive Neutrosophic SuperHyperGraphs, a unified framework that combines vertex …

An Interactive Multi-Objective Programming Approach For Optimizing Fully Trapezoidal Spherical Fuzzy Linear Programming Problem With Application, Sultan S. Alodhaibi, Hissah Ibrahim Almuzini, Hamiden Abd El-Wahed Khalifa

Neutrosophic Systems with Applications

In this paper, a linear programming framework with completely uncertain parameters is investigated by employing trapezoidal spherical fuzzy numbers (TrSFNs). The proposed formulation incorporates a spherical fuzzy (SF) decision environment in which the optimization process simultaneously maximizes the degree of positive membership while minimizing the corresponding neutral and negative membership degrees. By utilizing the concept of the α -cut associated with TrSFNs, the original fully fuzzy linear programming problem is transformed into an interval-valued linear programming model with confidence levels. To rank and compare the resulting interval objective values, an interval ordering approach based on the decision maker's preferences—considering the …

Career Planning Expectations Of Maritime Vocational Students: A Case Study From Iskenderun Technical University, Türkiye, Özkan Akar

Seatific Journal

This study investigates the post-graduation career planning preferences, influencing factors, and expectations of 138 students enrolled in maritime education programs at İskenderun Technical University in Türkiye, using a structured survey administered to students from the Maritime Technologies Vocational School to examine career intentions, sectoral awareness, salary expectations, and perceptions of institutional support. The collected data were analyzed using descriptive statistics and non-parametric tests (Mann-Whitney U and Kruskal-Wallis). The findings indicate that 41.3% of students reported no specific sector preference, while 26.1% preferred the public sector, 21.0% the private sector, and 11.6% were undecided. Among students favoring public employment, Port Authorities, …

Microelement Deficiencies In Perimenopausal Women And Their Impact On Metabolic And Physical Performance: Potential Applications Of Vis–Nir Tissue Spectrophotometry And The So/Check Platform, Izabela Pabin, Damian M. Dudek, Łukasz Jaworski, Ewa Maria Kłodzińska

Baltic Journal of Health and Physical Activity

Background: The perimenopausal period, typically occurring between the ages of 40 and 55 years, represents a critical transitional stage in women’s physiology characterized by profound hormonal, metabolic, and systemic adaptations. While the endocrine aspects of this transition have been extensively investigated, increasing attention has recently been directed toward the role of micronutrient homeostasis in maintaining metabolic health and physical performance during this period. Therefore, the aim of this narrative review is to summarize current knowledge regarding microelement deficiencies in perimenopausal women and their potential impact on metabolic health and physical performance. Additionally, the review discusses the potential applications of VIS–NIR …

The Shorthorn: June 26, 1985

The Shorthorn Newspaper Collection: 1980s

No abstract provided.

The Shorthorn: April 23, 1985

The Shorthorn Newspaper Collection: 1980s

No abstract provided.

The Shorthorn: March 13, 1985

The Shorthorn Newspaper Collection: 1980s

No abstract provided.

The Shorthorn: March 14, 1985

The Shorthorn Newspaper Collection: 1980s

No abstract provided.

The Shorthorn: March 12, 1985

The Shorthorn Newspaper Collection: 1980s

No abstract provided.

The Shorthorn: January 30, 1985

The Shorthorn Newspaper Collection: 1980s

No abstract provided.

The Shorthorn: December 6, 1984

The Shorthorn Newspaper Collection: 1980s

No abstract provided.

The Shorthorn: December 4, 1984

The Shorthorn Newspaper Collection: 1980s

No abstract provided.

The Shorthorn: November 29, 1984

The Shorthorn Newspaper Collection: 1980s

No abstract provided.

The Shorthorn: November 16, 1984

The Shorthorn Newspaper Collection: 1980s

No abstract provided.

The Shorthorn: November 14, 1984

The Shorthorn Newspaper Collection: 1980s

No abstract provided.

The Shorthorn: October 31, 1984

The Shorthorn Newspaper Collection: 1980s

No abstract provided.

The Shorthorn: October 26, 1984

The Shorthorn Newspaper Collection: 1980s

No abstract provided.

The Shorthorn: October 19, 1984

The Shorthorn Newspaper Collection: 1980s

No abstract provided.

The Shorthorn: October 11, 1984

The Shorthorn Newspaper Collection: 1980s

No abstract provided.

The Shorthorn: September 27, 1984

The Shorthorn Newspaper Collection: 1980s

No abstract provided.

The Shorthorn: September 21, 1984

The Shorthorn Newspaper Collection: 1980s

No abstract provided.

The Shorthorn: September 20, 1984

The Shorthorn Newspaper Collection: 1980s

No abstract provided.