515 results match your criteria: "Vocational School of Technical Sciences[Affiliation]"

Article Synopsis
  • The study compared sugar-free (A) and sugar-added (B) carob sherbet fermented with water kefir grains, noting significant changes in pH, TSS, and titratable acidity after 48 hours of fermentation.
  • After fermentation, sugar-free A maintained higher levels of beneficial compounds like gallic acid and displayed a lower decrease in antioxidant activity (DPPH) compared to sugar-added B, although both saw declines over time.
  • Moreover, A showed better mineral retention after 14 days, while B exhibited higher microbial counts throughout fermentation and storage.
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This study investigates the functional and biological activities of a polysaccharide-polyphenolic complex derived from the edible mushroom Agrocybe aegerita. Polyphenols (AMP) were extracted using a modified solvent evaporation technique, and polysaccharides (AMPP) were extracted using enzyme-assisted methods, yielding 8.02 %.

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This study examined scan speed, hatch distance, and scan rotation angle parameters to determine the effects of the powder bed fusion process on the tensile strength of AlSi10Mg material. The Taguchi L9 experimental design was applied to evaluate the effects of the parameters systematically. The experimental results revealed the importance of the parameters affecting the tensile strength of the AlSi10Mg material.

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Background: Environmental pollution, including exposure to carbon tetrachloride (CCl4), poses serious health risks, particularly through oxidative stress, which may lead to neurodegenerative damage. Antioxidants, especially those found in natural products, show potential in mitigating these toxic effects. Pomegranate juice (PJ), rich in bioactive phytochemicals, has demonstrated antioxidant, anti-inflammatory, and neuroprotective properties.

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In this study, the gamma radiation shielding properties of concrete samples reinforced with 10%, 20%, 30%, 40% and 50% of the cement weight of brass alloy were investigated. To test gamma shielding performance of the samples, mass and linear attenuation coefficients, half and tenth value layers, effective atomic number and radiation protection efficiency parameters were determined experimentally, theoretically and Monte Carlo simulations (GEANT4 and FLUKA). The studies were performed at 11 different gamma energies that range from 59.

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Addressing the Return Visit Challenge in Autonomous Flying Ad Hoc Networks Linked to a Central Station.

Sensors (Basel)

December 2024

Department of Computer Hardware, Department of Computer Engineering, Faculty of Technology, Marmara University, 34840 Maltepe, İstanbul, Turkey.

Unmanned Aerial Vehicles (UAVs) have become essential tools across various sectors due to their versatility and advanced capabilities in autonomy, perception, and networking. Despite over a decade of experimental efforts in multi-UAV systems, substantial theoretical challenges concerning coordination mechanisms still need to be solved, particularly in maintaining network connectivity and optimizing routing. Current research has revealed the absence of an efficient algorithm tailored for the routing problem of multiple UAVs connected to a central station, especially under the constraints of maintaining constant network connectivity and minimizing the average goal revisit time.

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Ionizing radiation plays an essential role across various fields but also poses significant health risks, requiring effective shielding solutions. This study focuses on the photon shielding properties of PbO-reinforced composites, specifically PbO-0, PbO-2, PbO-4, PbO-6, PbO-8, and PbO-10, through experimental measurements of photon energies ranging from 59.5 keV to 1408.

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In this study, BC1F3:4 generation plants derived from the hybrid crosses of Rio Blanco × Nevzatbey, Rio Blanco × Adana99, and Rio Blanco × line 127 were used as experimental material. These hybrids incorporated QTLs associated with pre-harvest sprouting (PHS) resistance through molecular techniques. Key agronomic traits, including plant height, spike length, the number of grains per spike, grain weight, and physiological maturity, were evaluated in both greenhouse and growth room settings under accelerated growth (speed breeding) conditions.

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Consumers' demand for foods with health benefits and different tastes is on an increasing trend. Juniper berries ("andiz" in Turkish) are the fruits of perennial, aromatic, and resinous trees. In this study, quality properties of herbal coffee samples obtained from juniper berries roasted at three different temperatures (120, 160, and 200 °C) and four different durations (10, 25, 32.

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Sulfonate derivatives are an essential class of compounds with diverse pharmacological applications. This study presents the synthesis and detailed characterization of six novel Schiff base sulfonate derivatives (L-L) through spectroscopic techniques (FT-IR and NMR). Their inhibitory potential was evaluated against human carbonic anhydrase isoenzymes (hCA I and hCA II) and acetylcholinesterase (AChE), which are crucial therapeutic targets for diseases such as glaucoma, epilepsy, and Alzheimer's disease.

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Enhanced supercapacitor performance with CZTS-based carbon nanocomposites electrodes: An electrochemical study.

J Colloid Interface Sci

November 2024

Department of Chemical Engineering, Bogazici University, TR-34342, Istanbul, Turkey; TUBITAK Marmara Research Center, Material Institute, Gebze 41470, Turkey. Electronic address:

Article Synopsis
  • - The research highlights the urgent demand for effective energy storage solutions, leading to the development of a new composite material, CuZnSnS (CZTS) integrated with functionalized Multi-walled Carbon Nanotubes (f-MWCNT) using a hydrothermal method.
  • - Three nanocomposite variants (CZTS (10), CZTS (20), CZTS (40)) were produced with different percentages of f-MWCNT, and the CZTS (20) sample showed the best electrochemical performance with a specific capacitance of 171F/g.
  • - The study reveals that the CZTS/f-MWCNT nanocomposite retains 99% of its capacity after 3000 cycles, indicating its strong potential for enhancing
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Article Synopsis
  • * Carvacrol and geraniol showed strong repellent properties, with carvacrol's effectiveness comparable to DEET at specific concentrations and times.
  • * The findings suggest that plant-derived compounds could serve as safer alternatives to synthetic tick repellents and have potential for development into effective biocidal products.
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In this study, two identical and two dissimilar materials are conjoined by applying the friction welding method to yield various rods. This investigation's primary focus entails examining the repercussions associated with the heat-affected zone (HAZ) arising from elevated temperatures at the welding interfaces on the propagation of electromagnetic (EM) waves within the resultant structures. The study incorporates the photonic crystal approach in conjunction with Maxwell's equations, and the subsequent solution of the latter is executed using the finite element method.

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Nutraceutical tablets: Manufacturing processes, quality assurance, and effects on human health.

Food Res Int

December 2024

Guangdong Provincial Key Laboratory of Intelligent Food Manufacturing, School of Food Science and Engineering, Foshan University, Foshan, China; School of Food Science and Engineering, South China University of Technology, Guangzhou, China. Electronic address:

Consumers are increasingly focused on food products' nutritional content and health aspects. Nutraceutical tablets containing nutritional supplements have seen remarkable progress and are well-known for their precise dosage, which can improve consumer health by increasing the intake of bioactive compounds and vital nutrients. Oral nutraceuticals are frequently used to enhance consumer well-being, with around 80% of products being in solid form.

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In the veterinary field, particularly in the poultry farming sector, (Panzer, 1797) (Coleoptera: Tenebrionidae) is a significant pest that causes economic losses and acts as a vector for various pathogens. This study is the first to evaluate the efficacy of the entomopathogenic nematode Filipjev, 1934 against both the larval (fifth instar) and imago (adult) of from various Turkish populations. The insects were collected from six poultry farms in the provinces of Balikesir, Bolu, Canakkale, Manisa, and Izmir in Türkiye, bred, and then tested at concentrations ranging from 25 to 200 infective juveniles (IJs) per milliliter.

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Article Synopsis
  • The study examines the nutritional, functional, and environmental benefits of two types of macro-fungi powders, highlighting their applications in food and medicine.
  • One type of mushroom showed 11.43% more protein, while the other had 63.55% more fiber, demonstrating their distinct nutritional profiles.
  • They also exhibit significant bioavailability of essential minerals like iron, zinc, and calcium, and effectively degrade harmful compounds, suggesting their potential use as nutritious alternatives or additives.
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Microalgae have emerged as favorable substitutes for traditional animal-based proteins in the search for sustainable protein sources. Despite being underexplored, microalgae offer the possibility of large-scale protein production via novel extraction techniques. This review synthesizes current knowledge on microalgal proteins, shedding light on their novel extraction techniques and techno-functional properties, which are still in the early stages of exploration.

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Background: Morphological properties such as length and tortuosity of the large intestine segments play important roles, especially in interventional procedures like colonoscopy.

Objective: Using computed tomography (CT) colonoscopy images, this study aimed to examine the morphological features of the colon's anatomical sections and investigate the relationship of these sections with each other or with age groups. The shapes of the transverse colon were analyzed using artificial intelligence.

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Article Synopsis
  • This study focused on encapsulating probiotic bacteria using oleaster flour, which has beneficial prebiotic properties and phenolic compounds.
  • The encapsulation process achieved high efficiency rates of 93.66% and 74.97% for the two types of probiotic bacteria, with capsule sizes measured using electron microscopy.
  • Results indicated that encapsulated bacteria had better survival rates compared to free bacteria during gastrointestinal digestion, maintaining 39.59% and 36.28% viability post-digestion.
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Purpose: The purpose of this research is to evaluate the insecticidal efficacy of cedar ( A. Rich.) tar against adults of the cat flea Bouché, a significant ectoparasite affecting both domestic and stray animals.

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This study aimed to utilize different plant-derived mucilage as a fat substitute in yogurt production. rhizome mucilage (CEM), fruit mucilage (CDM), and husk mucilage (PHM) were extracted using different extraction process, and spray dried to acquire nano-scaled mucilage particles (100-300 nm). Seven different types of yogurts were prepared with the addition of varied mucilage concentrations (1-10 % /).

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This study focuses on utilizing papaya peel to produce carbon quantum dots (PP-CQDs) via a hydrothermal method and the PP-CQDs are subsequently embedded into carboxymethyl cellulose and pectin nanohydrogel to enhance the shelf-life of strawberries. The synthesis of PP-CQDs was found to be optimal under conditions of 12 h and 200 °C, resulting in a quantum yield of 39.15 % and an average particle size of 4.

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The genus L. has been used in the treatment of rheumatic, diabetic and ulcerous diseases. Herein, the antioxidant, anticholinesterase, and antidiabetic activities of Griseb.

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This study investigated the physicochemical, low glycemic index, and mineral uptake of functional noodles added with varying concentrations (0-10 %) of (also known as shiitake) powder. Noodles with 4 % mushroom powder (L3) exhibited comparable sensory attributes in comparison with control noodles. The L3 showed significantly higher protein (1.

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Cancer is a major disease that affects millions of people around the world every year. It affects individuals of all ages, races, and backgrounds. Since drugs used to treat cancer cannot distinguish between cancerous and healthy cells, they cause systemic toxicity along with serious side effects.

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