keyword
https://read.qxmd.com/read/38680814/isolation-and-characterization-of-strictly-anaerobic-cellulolytic-rumen-bacterial-species-from-sahiwal-cattle
#21
JOURNAL ARTICLE
Muhammad Ashiqul Alam, Md Jannat Hossain, M Sohidullah, Md Shahidur Rahman Khan, Khan Md Shaiful Islam
OBJECTIVE: To isolate and characterize cellulolytic rumen bacteria from the rumen of Sahiwal cattle using rumen bacterial inoculum to increase the nutritional value of rice bran used as broiler feed. MATERIALS AND METHODS: The ruminal liquid was kept at an optimal pH of 6.9 and a redox potential of less than -300 mV while being incubated anaerobically at 39°C in a medium containing rumen fluid glucose cellobiose agar. By using the Hungate technique, the organisms were detected based on their morphological, physiological, biochemical, and molecular testing...
March 2024: Journal of Advanced Veterinary and Animal Research
https://read.qxmd.com/read/38680619/outline-of-an-evolutionary-morphology-generator-towards-the-modular-design-of-a-biohybrid-catheter
#22
JOURNAL ARTICLE
Michail-Antisthenis Tsompanas, Igor Balaz
Biohybrid machines (BHMs) are an amalgam of actuators composed of living cells with synthetic materials. They are engineered in order to improve autonomy, adaptability and energy efficiency beyond what conventional robots can offer. However, designing these machines is no trivial task for humans, provided the field's short history and, thus, the limited experience and expertise on designing and controlling similar entities, such as soft robots. To unveil the advantages of BHMs, we propose to overcome the hindrances of their design process by developing a modular modeling and simulation framework for the digital design of BHMs that incorporates Artificial Intelligence powered algorithms...
2024: Frontiers in Robotics and AI
https://read.qxmd.com/read/38680446/adaptive-feature-medical-segmentation-network-an-adaptable-deep-learning-paradigm-for-high-performance-3d-brain-lesion-segmentation-in-medical-imaging
#23
JOURNAL ARTICLE
Asim Zaman, Haseeb Hassan, Xueqiang Zeng, Rashid Khan, Jiaxi Lu, Huihui Yang, Xiaoqiang Miao, Anbo Cao, Yingjian Yang, Bingding Huang, Yingwei Guo, Yan Kang
INTRODUCTION: In neurological diagnostics, accurate detection and segmentation of brain lesions is crucial. Identifying these lesions is challenging due to its complex morphology, especially when using traditional methods. Conventional methods are either computationally demanding with a marginal impact/enhancement or sacrifice fine details for computational efficiency. Therefore, balancing performance and precision in compute-intensive medical imaging remains a hot research topic. METHODS: We introduce a novel encoder-decoder network architecture named the Adaptive Feature Medical Segmentation Network (AFMS-Net) with two encoder variants: the Single Adaptive Encoder Block (SAEB) and the Dual Adaptive Encoder Block (DAEB)...
2024: Frontiers in Neuroscience
https://read.qxmd.com/read/38680325/high-throughput-silica-nanoparticle-detection-for-quality-control-of-complex-early-life-nutrition-food-matrices
#24
JOURNAL ARTICLE
Viviana Maffeis, Andrea Otter, André Düsterloh, Lucy Kind, Cornelia Palivan, Sina S Saxer
The addition of nanomaterials to improve product properties has become a matter of course for many commodities: e.g., detergents, cosmetics, and food products. While this practice improves product characteristics, the increasing exposure and potential impact of nanomaterials (<100 nm) raise concerns regarding both the human body and the environment. Special attention should be taken for vulnerable individuals such as those who are ill, elder, or newborns. But detecting and quantifying nanoparticles in complex food matrices like early life nutrition (ELN) poses a significant challenge due to the presence of additional particles, emulsion-droplets, or micelles...
April 23, 2024: ACS Omega
https://read.qxmd.com/read/38680307/powder-synthesis-and-characterization-of-al-0-5-cocrfeni-high-entropy-alloy-for-additive-manufacturing-prepared-by-the-plasma-rotating-electrode-process
#25
JOURNAL ARTICLE
Yanchun Li, Yi Sui, Yicheng Feng, Yu Zhang, Yan Li, Meihui Song, Shulin Gong, Yang Xie
The Al0.5 CoCrFeNi high-entropy alloy powder was produced by using a plasma rotating electrode process. The morphology, microstructure, and physical properties of the powder were characterized. The powder exhibited a smooth surface and a narrow particle size distribution with a single peak. The relationships between particle size and secondary dendrite arm space as well as cooling rate were evaluated as follows: λ = 0.0105 d + 0.062 and v c = 4.34 × 10-5 d -2 + 2.62 × 10-2 d -3/2 , respectively...
April 23, 2024: ACS Omega
https://read.qxmd.com/read/38679953/effects-of-predation-risk-on-parasite-host-interactions-and-wildlife-diseases
#26
REVIEW
David W Thieltges, Pieter T J Johnson, Anieke van Leeuwen, Janet Koprivnikar
Landscapes of fear can determine the dynamics of entire ecosystems. In response to perceived predation risk, prey can show physiological, behavioral, or morphological trait changes to avoid predation. This in turn can indirectly affect other species by modifying species interactions (e.g., altered feeding), with knock-on effects, such as trophic cascades, on the wider ecosystem. While such indirect effects stemming from the fear of predation have received extensive attention for herbivore-plant and predator-prey interactions, much less is known about how they alter parasite-host interactions and wildlife diseases...
April 28, 2024: Ecology
https://read.qxmd.com/read/38679815/proposal-of-a-classification-of-cannulation-damage-in-vascular-access-grafts-based-on-clinical-ultrasound-and-microscopic-observations
#27
JOURNAL ARTICLE
Marco Franchin, Barbara Vergani, Veronica Huber, Biagio Eugenio Leone, Antonello Villa, Paola Muscato, Maria Cristina Cervarolo, Gabriele Piffaretti, Matteo Tozzi
INTRODUCTION: Arteriovenous grafts (AVGs) serve as an alternative to native arteriovenous fistulas (AVFs) in the context of hemodialysis patient life planning. AVGs are more susceptible to developing outflow stenosis (due to intimal hyperplasia), thrombosis, and infections. However, an often overlooked contributor to AVG failure is cannulation damage. The objective of this paper is to assess the impact of cannulations on AVGs. We aim to establish a classification of AVG damage by comparing clinical data and ultrasound images with microscopic morphological findings obtained from explanted grafts...
April 28, 2024: Journal of Vascular Access
https://read.qxmd.com/read/38679646/cardiac-hypertrophy-that-affects-hyperthyroidism-occurs-independently-of-the-nlrp3-inflammasome
#28
JOURNAL ARTICLE
Aline Cristina Parletta, Gabriela Cavazza Cerri, Claudia Ribeiro Borba Gasparini, Karine Panico, Denival Nascimento Vieira-Junior, Larissa Maria Zacarias-Rodrigues, Nathalia Senger, Amanda de Almeida Silva, Marina Fevereiro, Gabriela Placoná Diniz, Maria Cláudia Costa Irigoyen, Maria Luiza Morais Barreto-Chaves
Cardiac hypertrophy (CH) is an adaptive response to maintain cardiac function; however, persistent stress responses lead to contractile dysfunction and heart failure. Although inflammation is involved in these processes, the mechanisms that control cardiac inflammation and hypertrophy still need to be clarified. The NLRP3 inflammasome is a cytosolic multiprotein complex that mediates IL-1β production. The priming step of NLRP3 is essential for increasing the expression of its components and occurs following NF-κB activation...
April 29, 2024: Pflügers Archiv: European Journal of Physiology
https://read.qxmd.com/read/38679578/composites-with-immobilized-bioactive-spirulina-on-an-inorganic-substrate-yellow-clay-hydroxyapatite-sio2-tio2-zno
#29
JOURNAL ARTICLE
Klaudia Kowalska, Ewa Skwarek, Evgeny Demianenko, Victoria Paientko
In order to improve the structural properties of clays and composites of powdered spirulina, clay, nanosilica, hydroxyapatite, TiO2 and ZnO were used as an additive for mechanical processing. As a result, composites with natural nanostructured materials (NNM) are prepared with improved structural properties and bioactivity. The mixtures based on NNM with crystalline kaolinite, clays and admixtures were processed in a knife mill. The materials were characterized using FTIR spectroscopy, nitrogen adsorption and desorption, SEM release of bioactive components (anthocyanin 0,004 - 0,07 mg/g; chlorophyll 20 - 29 mg/g), composite toxicity level (below 25%), particle size measurement and surface charge density, zeta potential...
April 28, 2024: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://read.qxmd.com/read/38679312/human-midbrain-brainstem-classification-according-to-the-prosomeric-model
#30
JOURNAL ARTICLE
Alberth Patricio Munoz-Gualan, Abuzer Güngör, Phillip Cem Cezayirli, Serdar Rahmanov, Muhammet Enes Gurses, Luis Puelles, Uğur Türe
This study reevaluates the conventional understanding of midbrain anatomy and neuroanatomical nomenclature in the context of recent genetic and anatomical discoveries. The authors assert that the midbrain should be viewed as an integral part of the forebrain due to shared genetic determinants and evolutionary lineage. The isthmo-mesencephalic boundary is recognized as a significant organizer for both the caudal midbrain and the isthmo-cerebellar area. The article adopts the prosomeric model, redefining the whole brain as neuromeres, offering a more precise depiction of brain development, including processes like proliferation, neurogenesis, cell migration, and differentiation...
April 26, 2024: Brain Research
https://read.qxmd.com/read/38678964/mitochondrial-dynamics-dysfunction-unraveling-the-hidden-link-to-depression
#31
REVIEW
Haiyang Chen, Mei Lu, Qin Lyu, Liuqing Shi, Chuntong Zhou, Mingjie Li, Shiyu Feng, Xicai Liang, Xin Zhou, Lu Ren
Depression is a common mental disorder and its pathogenesis is not fully understood. However, more and more evidence shows that mitochondrial dynamics dysfunction may play an important role in the occurrence and development of depression. Mitochondria are the centre of energy production in cells, and are also involved in important processes such as apoptosis and oxidative stress. Studies have found that there are abnormalities in mitochondrial function in patients with depression, including mitochondrial morphological changes, mitochondrial dynamics disorders, mitochondrial DNA damage, and impaired mitochondrial respiratory chain function...
April 27, 2024: Biomedicine & Pharmacotherapy
https://read.qxmd.com/read/38678884/mussel-inspired-interface-deposition-strategy-for-mesoporous-metal-phenolic-nanospheres-with-superior-antioxidative-photothermal-and-antibacterial-performance
#32
JOURNAL ARTICLE
Youyou Feng, Gen Wang, Bingxi Feng, Ping Li, Jing Wei
Metal-phenolic networks (MPNs) have emerged as a versatile and multifunctional platform applied in bioimaging, disease treatment, electrocatalysis, and water purification. The synthesis of MPNs with mesoporous frameworks and ultra-small diameters (<200 nm), crucial for post-modification, cargo loading, and mass transport, remains a formidable challenge. Inspired by mussel chemistry, mesoporous metal-phenolic nanospheres (MMPNs) are facilely prepared by direct deposition of the metal-polyphenol complex on the interface of oil nano-droplets composed of block copolymers/1,3,5-trimethylbenzene followed by a spontaneous template-removal process...
April 25, 2024: Journal of Colloid and Interface Science
https://read.qxmd.com/read/38678723/aging-increases-the-particulate-and-leachate-induced-toxicity-of-tire-wear-particles-to-microalgae
#33
JOURNAL ARTICLE
Min Lv, Fanyu Meng, Mingsan Man, Shuang Lu, Suyu Ren, Xiaoyong Yang, Qiaoning Wang, Lingxin Chen, Jing Ding
The toxic effects of tire wear particles (TWPs) on organisms have attracted widespread concerns over the past decade. However, the underlying toxicity mechanism of TWPs, especially aged TWPs to marine microalgae remains poorly understood. This study investigated the physiological and metabolic responses of Phaeodactylum tricornutum to different concentrations of TWPs (Experiment 1), virgin and differently aged TWPs (Experiment 2) as well as their leachates and leached particles (Experiment 3). Results demonstrated that TWPs promoted the growth of microalgae at low concentrations (0...
April 20, 2024: Water Research
https://read.qxmd.com/read/38678718/characteristics-and-numerical-simulation-of-chromium-transportation-migration-and-transformation-in-soil-groundwater-system
#34
JOURNAL ARTICLE
Rongrong Ying, Bin Yang, Meng Chen, Xiaoyu Zhang, Caiyi Zhao, Tao Long, Hao Qiu, Wenbing Ji
Understanding chromium (Cr) migration and dispersion patterns in the soil-groundwater system is critical for the control and remediation of subsurface Cr contamination. In this study, a typical Cr-contaminated site from the Pearl River Delta (PRD) in China was simulated with a three-dimensional (3D) sandbox experiment to investigate the migration and transformation behavior of Cr. Results revealed that under the combined influence of rainfall and groundwater flow, a complex flow field favorable for 3D migration and solute dispersion was formed...
April 25, 2024: Journal of Hazardous Materials
https://read.qxmd.com/read/38678653/process-optimization-for-microfluidic-preparation-of-liposomes-using-food-grade-components
#35
JOURNAL ARTICLE
Sung-Chul Hong, Chi Rac Hong, Minsoo Kim, Yue Jai Kang, Young Hoon Jung, Kyung-Min Park, Jaeyoung Choi, Pahn-Shick Chang
This study explores the potential for optimizing a sustainable manufacturing process that maintains the essential characteristics of conventional liposomes using food-grade solvents and components. The focus was comparing the physicochemical, morphological, and interfacial properties of liposomes produced with these food-grade ingredients to those made by conventional methods. It was found that there was no significant difference in particle size (195.87 ± 1.40 nm) and ζ-potential (-45...
April 24, 2024: Food Chemistry
https://read.qxmd.com/read/38677763/cx-4945-silmitasertib-induces-cell-death-by-impairing-lysosomal-utilization-in-kras-mutant-cholangiocarcinoma-cell-lines
#36
JOURNAL ARTICLE
DA Sol Lee, Min Woo Han, Yonghyun Kang, Chorong Kim, Seonmin Lee, Kyu-Pyo Kim, Changhoon Yoo
BACKGROUND/AIM: Macropinocytosis is a non-selective form of endocytosis that facilitates the uptake of extracellular substances, such as nutrients and macromolecules, into the cells. In KRAS-driven cancers, including pancreatic ductal adenocarcinoma, macropinocytosis and subsequent lysosomal utilization are known to be enhanced to overcome metabolic stress. In this study, we investigated the role of Casein Kinase 2 (CK2) inhibition in macropinocytosis and subsequent metabolic processes in KRAS mutant cholangiocarcinoma (CCA) cell lines...
May 2024: Anticancer Research
https://read.qxmd.com/read/38677703/construction-of-fu-brick-tea-polysaccharide-cold-plasma-modified-alginate-microgels-for-probiotic-delivery-enhancing-viability-and-colonization
#37
JOURNAL ARTICLE
Rui Sun, Ying Wang, Zhongyi Lv, Hairui Li, Shirui Zhang, Qilei Dang, Xubo Zhao, Tianli Yue, Yahong Yuan
Emerging food processing technologies provide broader avenues for enhancing probiotic delivery systems. In this study, the new Fu brick tea polysaccharide (FBTP) was extracted and combined with cold plasma-modified alginate nano-montmorillonite (AMT) to prepare microgels by ionic gelation to improve the viability of encapsulated Lactobacillus kefiranofaciens JKSP109. Results showed that cold plasma treatment for 3 min changed the surface charge of AMT biopolymer solution, and FBTP addition reduced the particle size to the lowest of 223 ± 5...
April 25, 2024: International Journal of Biological Macromolecules
https://read.qxmd.com/read/38677677/dynamics-of-%C3%AE-glucan-from-agrocybe-cylindracea-water-extract-at-different-developmental-stages-and-its-structure-characteristics
#38
JOURNAL ARTICLE
Jin-Jin Liu, Yu-Ke Hou, Xin Wang, Wei-Wei He, Xiao-Jun Huang, Jun-Yi Yin, Shao-Ping Nie
Polysaccharides are the important bioactive macromolecules in Agrocybe cylindracea, but their changes are as yet elusive during developmental process. This study investigated the dynamic changes of polysaccharides from A. cylindracea fruiting body water extract at four developmental stages and its structure characteristics. Results revealed that the polysaccharides from A. cylindracea water extract significantly increased at the pileus expansion stage and the increased fraction could be α-glucan. The further purification and identification indicated that this α-glucan was a glycogen...
April 25, 2024: International Journal of Biological Macromolecules
https://read.qxmd.com/read/38677611/metronidazole-degradation-mechanism-by-sono-photo-fenton-processes-using-a-spinel-ferrite-cobalt-on-activated-carbon-catalyst
#39
JOURNAL ARTICLE
Babak Kakavandi, Mohammad Ahmadi, Jorge Bedia, Masoumeh Hashamfirooz, Azra Naderi, Vahideh Oskoei, Hossein Yousefian, Roshanak Rezaei Kalantary, Rasool Pelalak, Raf Dewil
A heterogeneous catalyst was prepared by anchoring spinel cobalt ferrite nanoparticles on porous activated carbon (SCF@AC). The catalyst was tested to activate hydrogen peroxide (HP) in the Fenton degradation of metronidazole (MTZ). SCF nanoparticles were produced through the co-precipitation of iron and cobalt metal salts in an alkaline condition. Elemental mapping, physico-chemical, morphological, structural, and magnetic properties of the as-fabricated catalyst were analyzed utilizing EDX mapping, FESEM-EDS, TEM, BET, XRD, EDS, and VSM techniques...
April 25, 2024: Chemosphere
https://read.qxmd.com/read/38677609/effect-of-wood-and-peanut-shell-hydrochars-on-the-desiccation-cracking-characteristics-of-clayey-soils
#40
JOURNAL ARTICLE
Ekaterina Kravchenko, Trishia Liezl Dela Cruz, Svetlana Sushkova, Vishnu D Rajput
Soil cracking can significantly alter the water and nutrient migration pathways in the soil, influencing plant growth and development. While biochar usage has effectively addressed soil cracking, the feasibility of using less energy-intensive hydrochars in desiccating soils remains unexplored. This study investigates the impact of wood and peanut shell hydrochars on the desiccation cracking characteristics of clayey soil. A series of controlled environmental laboratory incubations with regular imaging was conducted to determine crack development's dynamic in unamended and hydrochar-amended soils...
April 25, 2024: Chemosphere
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