4,052 results match your criteria: "College of Technology[Affiliation]"

Endometrial Cancer (EC) is one of the most common gynecological malignancies. Despite its prevalence, molecular pathways, such as the Sonic Hedgehog (SHH) pathway, have not been extensively studied in the context of EC. This study aims to explore the clinical implications of SHH expression in EC, potentially uncovering new insights into the disease's pathogenesis and offering valuable insights for therapeutic strategies in EC.

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Indole derivatives have become an important class of compounds in medicinal chemistry, recognized for their wide-ranging biological activities and therapeutic potential. This review provides a comprehensive overview of recent advances in the evaluation of indole-based compounds in the last five years, highlighting their roles in cancer treatment, infectious disease management, anti-inflammatory therapies, metabolic disorder interventions, and neurodegenerative disease management. Indole derivatives have shown significant efficacy in targeting diverse biological pathways, making them valuable scaffolds in designing new drugs.

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Urban public space initiatives and health in Africa: A mixed-methods systematic review.

PLOS Glob Public Health

October 2024

Global Diet and Activity Research Group and Network, MRC Epidemiology Unit, University of Cambridge, United Kingdom.

Article Synopsis
  • Public space initiatives (PSIs) in African cities can improve health and social well-being, but there's a lack of research on their effectiveness and implementation across the continent.
  • This study synthesizes existing literature to assess the characteristics, locations, and outcomes of PSIs, finding that sports initiatives are predominant and that most research comes from South Africa.
  • Key challenges for PSIs include limited funding, historical marginalization, and competing land uses, highlighting the need for long-term evaluations and better collaboration for sustainable health-promoting public spaces.
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  • * Bacteriophages (phages) are also important components of the biofilm matrix, contributing to its protective characteristics.
  • * This article reviews the mechanisms behind the release of matrix polymers and the interactions of these biomolecules, enhancing our understanding of biofilm protection against antimicrobial agents.
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  • * The research included 60 children aged 2-17 with sore throats and high fevers, categorizing them into groups based on their diagnosis.
  • * Although IRT alone couldn't differentiate between bacterial and viral pharyngitis, it improved the prediction accuracy for streptococcal pharyngitis when used with the McIsaac score, achieving a 90% positive predictive value.
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  • * The study uses data-driven techniques (DDTs) like random forest (RF), model tree (MT), and non-linear regression (NLR) to predict BOD and COD in three sections of the Mula-Mutha River in Pune, India.
  • * Results indicate that MT and RF models show a strong correlation with actual BOD and COD levels, while NLR is slightly less effective; these methods enhance practical applications for water quality evaluation.
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Natural selection on apical membrane antigen 1 (AMA1) of an emerging zoonotic malaria parasite Plasmodium inui.

Sci Rep

October 2024

Molecular Biology of Malaria and Opportunistic Parasites Research Unit, Department of Parasitology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.

Article Synopsis
  • * A study analyzed 80 complete coding sequences of ama1 from P. inui in macaques in Thailand, identifying 74 nucleotide substitutions and 60 haplotypes across two phylogenetic lineages, hinting at selective pressures.
  • * Notably, a significant number of amino acid substitutions were tied to immune response, with some showing alterations that could be harmful, indicating ongoing evolution and potential challenges for vaccine strategies.
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  • The paper addresses the challenges of designing controllers for Multi-Input Multi-Output (MIMO) industrial processes, emphasizing the need for advanced control strategies due to dynamic interactions and changes.
  • It proposes an Iterative Learning Controller with dead-time compensation, utilizing a new hybrid optimization algorithm for both simulation and real-time testing on the Quadruple Tank System.
  • The results indicate significant improvements in system stability and performance, with the proposed controller reducing overshoot and settling time by nearly 30% faster in Single-Input Single-Output (SISO) contexts and over 14% faster in MIMO settings, supported by predictive modeling using Machine Learning techniques.
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Fabrication of Vertically Aligned InGaN/GaN Nanorod Light Emitting Diode Arrays Using Dielectrophoresis.

ACS Appl Mater Interfaces

October 2024

Department of Semiconductor Systems Engineering, Korea University, Seoul 02841, Repulic of Korea.

We report a novel strategy for vertical alignment of nanorod light emitting diodes (NRLs) by introducing dielectrophoresis (DEP) coupled with a nanohole electrode (NHE). The NHE consists of two electrodes placed at the top and the bottom separated by an insulating layer. This electrode structure allows NRLs to align within the nanoholes due to the nonuniform electric field generated across the entire region of the nanohole when a DEP voltage is applied.

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Lanthanum oxide was successfully synthesized by hydrothermal method by varying the reaction time such as 6, 12, and 24 h. In XRD, study confirms the presence of a hexagonal structure, and the phase remains the same at different times; the main goal is to assess the average crystallite size of prepared LaO nanoparticles, which was found in the range of 6 to 8 nm. An interesting observation from the XRD data was the apparent increase in crystalline nature as the synthesis time was extended.

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Bacterial consortium amendment effectively reduces Pb/Cd bioavailability in soil and their accumulation in wheat.

J Environ Manage

November 2024

State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China; College of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China; CAS Center for Excellence in Quaternary Science and Global Change, Xi'an, 710061, China. Electronic address:

Microbial remediation can maintain the sustainability of farmlands contaminated with heavy metals (HMs). However, the effects of bacterial consortium on crop growth and potential risks under HM stress, as well as its mechanisms, are still unclear compared with a single microorganism. Here, we investigated the effect of a bacterial consortium consisting of some HMs-resistant bacteria, including Bacillus cereus, Bacillus thuringiensis, and Herbaspirillum huttiense, on plant growth promotion and inhibition of Pb/Cd accumulation within different contaminated soil-wheat systems through pot experiments.

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  • A study developed a flexible biopolymer-based antimicrobial wound dressing using chitosan-agarose (CS-AG) and chamomile flower extract (CH), aimed at improving wound healing and combating bacterial infections.
  • The CS-AG bioscaffold exhibits strong physical properties such as high tensile strength and enhanced thermal stability, verified by various scientific methods.
  • The bioscaffold not only demonstrates effective antibacterial activity against harmful bacteria but also supports cell viability, making it a promising option for drug release systems and tissue engineering applications.
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  • * To address these challenges, the paper introduces an adaptive backtracking method for VM consolidation, utilizing Adaptive Hill Climbing and Pursuit algorithms to optimize energy efficiency.
  • * The proposed approach was simulated in a Hybrid Cloud Environment using Matlab, achieving significant success with a 95% accuracy index and reducing energy consumption by 28%, 30%, and 32% during multiple VM consolidations.
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The intramolecular H-migration reaction of ROROO· radicals constitute a key class of reactions in the low-temperature combustion mechanism of ethers. Despite this, there is a dearth of direct computations regarding the potential energy surface and rate constants specific to ethers, especially when considering large molecular systems and intricate branched-chain structures. Furthermore, combustion kinetic models for large molecular ethers generally utilize rate constants derived from those of structurally similar alcohols or alkane fuels.

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Understanding the strength development of alkali-activated materials (AAMs) with fly ash (FA) and granulated blast furnace slag (GBFS) is crucial for designing high-performance AAMs. This study investigates the strength development mechanism of AAMs using machine learning. A total of 616 uniaxial compressive strength (UCS) data points from FA-GBFS-based AAM mixtures were collected from published literature to train four tree-based machine learning models.

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Prediction of android ransomware with deep learning model using hybrid cryptography.

Sci Rep

September 2024

Department of Mechanical Engineering, College of Technology and Engineering, Dambi Dollo University, Dembi Dolo, Ethiopia.

In recent times, the number of malware on Android mobile phones has been growing, and a new kind of malware is Android ransomware. This research aims to address the emerging concerns about Android ransomware in the mobile sector. Previous studies highlight that the number of new Android ransomware is increasing annually, which poses a huge threat to the privacy of mobile phone users for sensitive data.

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A spatial redundantly actuated parallel mechanism (RAPM) constrained by two point contact higher kinematic pairs (HKPs) has been designed, arising from the inspiration of mastication in human beings: the end effector is the lower jaw, the six kinematic chains are the primary chewing muscles, and the constraints at HKPs are the temporomandibular joints. In this paper, firstly, the constrained motions of the mechanism are described in detail; thereafter, five models are formulated by the well-known Newton-Euler's law, the Lagrangian equations, and the principle of virtual work, to explore its rigid-body inverse dynamics. The symbolic results show that the model structures based on these approaches are quite different: the model via the Newton-Euler law well reflects the nature of the mechanism in terms of the constraint forces from HKPs with six equations and eight unknowns, and the existence of reaction forces at the spherical joints is tightly dependent on the number of kinematic chains.

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This study aims to clarify the synergistic effect of artificial intelligence (AI) technology in the evolution of visual communication of new media art, thereby exploring an AI layout design method based on Convolutional Neural Network (CNN) in the practice of visual communication design. Firstly, this study designs an AI layout design model based on CNN, and trains and optimizes it with training data. Secondly, the automatic generation of layout design is realized by constantly adjusting the model parameters and network structure.

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Excessive dietary metal intake from crops grown on contaminated urban dumpsites poses a global health risk to consumers. We evaluated the health risk to adult and child consumers from dietary exposure to metals and metalloids in crops cultivated at the Mbale (Uganda) dumpsite centre. Thirteen crop types grown on the dumpsite soil were sampled and analyzed for concentrations of 11 metals: Fe, Al, Zn, Mn, Cu, Pb, Cr, Hg, Co, Ni, Cd, and two metalloids: Se and As.

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Fabrication of one-dimensional Zn-doped BiS nanorods for photodiode applications.

Luminescence

September 2024

BioNanocomposite Research Center, Department of Food and Nutrition, Kyung Hee University, Seoul, Republic of Korea.

In this research, the impact of the different zinc (Zn) concentrations on the physical and optoelectronic properties of BiS nanorods as self-powered and photodiode applications was investigated. The performance of P-N junction photodiodes has been for decades since they are crucial in energy applications. The structure, degree of crystallinity, and shape of Zn-doped BiS nanorods of various doping percentages formed onto the indium tin oxide (ITO) substrates by the dip coating technique are investigated using X-ray powder diffraction (XRD) and SEM.

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Power scarcity and pollution can be overcome with the use of green energy forms like ethanol, biogas, electricity, hydrogen, etc., especially energy produced from renewable and industrial feedstocks. In hilly areas, pine needles are the most abundant biomass that has a low possibility of valorization due to high lignin content.

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A multi-band antenna is proposed for terrestrial applications above 5 GHz. The design includes one director element, three split ring resonators (SRR), and a printed patch antenna on a FR4 substrate to make the miniature structure. The novelty is the addition of "C" split rings and one identical stub linked to the partial ground into the radiating element, which improves impedance matching and radiation characteristics across the target bands.

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The Marburg virus (MARV), belonging to the family, poses a significant global health threat, emphasizing the urgency to develop Marburg virus-like particle (VLP) vaccines for outbreak mitigation. The virus's menacing traits accentuate the need for such vaccines, which can be addressed by VLPs that mimic its structure safely, potentially overcoming past limitations. Early Marburg vaccine endeavors and their challenges are examined in the historical perspectives section, followed by an exploration of VLPs as transformative tools, capable of eliciting immune responses without conventional risks.

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Trial of labor following cesarean among patients with polyhydramnios: a multicenter retrospective study.

Arch Gynecol Obstet

November 2024

Department of Obstetrics & Gynecology, Shaare Zedek Medical Center, Affiliated with the Hebrew University School of Medicine, 12 Bayit Street, 91031, Jerusalem, Israel.

Article Synopsis
  • This study compared maternal and neonatal outcomes in women with polyhydramnios who attempted a trial of labor after cesarean (TOLAC) versus those undergoing planned repeat cesarean delivery (PRCD).
  • Out of 358 women, 58.1% chose TOLAC, achieving an 82.2% success rate for vaginal births without severe complications like uterine rupture or ICU admissions in either group.
  • The results suggest that TOLAC is a viable option for women with polyhydramnios, but further research is needed to improve care and outcomes in these cases.
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