Showing 1,881 - 1,900 results of 1,928 for search '"atom"', query time: 0.06s Refine Results
  1. 1881

    Association between some environmental risk factors and attention-deficit hyperactivity disorder among children in Egypt: a case-control study by Riham Abdelhamid Hussein, Rania Hussein Refai, Aleya Hanafy El-zoka, Hanan Galal Azouz, Mohamed Fakhry Hussein

    Published 2025-01-01
    “…Hair samples were collected for analysis of lead and manganese levels using Atomic Absorption Spectrophotometer. A pre-designed interview questionnaire was used to determine the important environmental risk factors that may be related to ADHD. …”
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    Article
  2. 1882

    An Improved Bio-Inspired Material Generation Algorithm for Engineering Optimization Problems Including PV Source Penetration in Distribution Systems by Mona Gafar, Shahenda Sarhan, Ahmed R. Ginidi, Abdullah M. Shaheen

    Published 2025-01-01
    “…The simulation results are then compared to various established bio-inspired algorithms, including Artificial Ecosystem Optimization (AEO), Fitness–Distance-Balance AEO (FAEO), Chef-Based Optimization Algorithm (CBOA), Beluga Whale Optimization Algorithm (BWOA), Arithmetic-Trigonometric Optimization Algorithm (ATOA), and Atomic Orbital Searching Algorithm (AOSA). Moreover, MGO and IMGO are tested on a real Egyptian power distribution system to optimize the placement of PV and the capacitor units with the aim of minimizing energy losses. …”
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  3. 1883

    Levels of Cadmium, Copper, and Lead in Soils and Cassava Tubers Grown in Machakos County, Kenya by E. M. Kasyoka, G. W. Mbugua, R. N. Wanjau, G. N. Nambafu, J. N. Ndiritu

    Published 2024-01-01
    “…Cadmium, copper, and lead levels in the collected samples were determined using the atomic absorption spectrometer (AAS) Shimadzu AA-6200 model. …”
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    Article
  4. 1884
  5. 1885
  6. 1886

    Study on the Electromigration Organization and Mechanical Properties of Sn2.5Ag0.7Cu0.1RE/Cu Solder Joints by Yuming Wang, Keke Zhang, Chao Zhang, Fupeng Huo, Yijie Gao

    Published 2025-01-01
    “…The results showed that the angle θ between the c-axis of the β-Sn grain and the current direction for the Sn2.5Ag0.7Cu0.1RE/Cu solder joint gradually decreased to 8.2° when the temperature increased to 150 °C, which accelerated the diffusion of Cu atoms and Cu substrate dissolution. The recrystallization and grain growth of Cu<sub>6</sub>Sn<sub>5</sub> (An intermetallic compound formed by the fusion of copper and tin in a ratio of six to five) grains in the anode region promoted electromigration polarity. …”
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  7. 1887

    Microbial Decontamination of Onion by Corona Discharge Air Plasma during Cold Storage by Eun Ha Chang, Yeoung Seuk Bae, Il Sheob Shin, Hyun Jin Choi, Ji Hyun Lee, Ji Weon Choi

    Published 2018-01-01
    “…Corona discharge air plasma (CDAP) is a nonthermal decontamination technology which is generating antimicrobial agents such as photons, electrons, positively and negatively charged ions, atoms, and free radicals. We investigated the effect of a corona discharge under atmospheric pressure on the sterilization of postharvest fungal pathogens on onion. …”
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  8. 1888
  9. 1889

    Christian vs liberal conceptions of human rights by Piotr Mazurkiewicz

    Published 2023-12-01
    “…It is a paradox that the more atomized a society is, the more necessary a strong state becomes to guarantee individual rights and a sense of security in times of crisis. …”
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  10. 1890
  11. 1891
  12. 1892

    Associations of combined exposure to selected metal mixtures with thyroid hormones in children: a cross-sectional study in China by Yuhan Cao, Shiting Xiang, Yuwei Du, Meiling Chen, Rumeng Xue, Qi Li, Jun Qiu, Yanying Duan

    Published 2025-01-01
    “…The concentrations of lead (Pb), iron (Fe), calcium (Ca), copper (Cu), zinc (Zn) and magnesium (Mg) in blood were detected via atomic absorption spectrometry (AAS). The levels of thyroid stimulating hormone (TSH), triiodothyronine (TT3, FT3) and total and free thyroxine (TT4, FT4) were measured by electrochemiluminescence immunoassay (ECLIA). …”
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  13. 1893

    Hydrothermal synthesis of a nickel-oxide-infused orange peel nanobiocomposite for enhanced heavy metal removal from mining wastewater by Jacques Romain Njimou, Velma Fai, Mary Tamwa Sieugaing, Djimongbaye Nguenamadje, John Godwin, Oben Bessem Genola, Guy Bertrand Noumi, Bankim Chandra Tripathy

    Published 2025-06-01
    “…The adsorption mechanism involves a two-step process where positively charged Cd2⁺ and Pb2⁺ ions diffuse toward the negatively charged surface of the Alg-OP-Ni nanobiocomposite and subsequently fix through interactions with surface oxygen atoms. Maximum adsorption capacities for Cd2⁺ and Pb2⁺ were determined to be 138.25 and 276.00 mg/g in single-component systems, and 224.00 and 317.10 mg/g in binary systems, respectively. …”
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  14. 1894

    The SUPERCOLD-CGM Survey. II. [C i](1–0) Emission and the Physical Conditions of Cold Gas in Enormous Lyα Nebulae at z ∼ 2 by Jianan Li, Bjorn H. C. Emonts, Zheng Cai, Jianrui Li, Ran Wang, Montserrat Villar-Martín, Fabrizio Arrigoni Battaia, Mingyu Li, Yunjing Wu, Ilsang Yoon, Matthew D. Lehnert, Kyle Massingill, Craig Sarazin, Jason X Prochaska, Mark Lacy, Brian Mason

    Published 2024-01-01
    “…We report Atacama Large Millimeter/submillimeter Array and Atacama Compact Array observations of atomic carbon ([C i ](1–0)) and dust continuum in 10 enormous Ly α nebulae hosting ultraluminous Type-I QSOs at z = 2.2–2.5, as part of the Survey of Protocluster ELANe Revealing CO/C i in the Ly α Detected CGM. …”
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  15. 1895

    Sequence-structure based prediction of pathogenicity for amino acid substitutions in proteins associated with primary immunodeficiencies by Ekaterina S. Porfireva, Anton D. Zadorozhny, Anastasia V. Rudik, Dmitry A. Filimonov, Alexey A. Lagunin, Alexey A. Lagunin

    Published 2025-02-01
    “…SSPR models were created for each protein using the MultiPASS software based on the Bayesian algorithm and different levels of MNA (Multilevel Neighborhoods of Atoms) descriptors for the representation of structural formulas of protein fragments including AAS.ResultsThe accuracy of prediction was assessed through a 5-fold cross-validation and compared to other bioinformatics tools, such as SIFT4G, Polyphen2 HDIV, FATHMM, MetaSVM, PROVEAN, ClinPred, and Alpha Missense. …”
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  16. 1896

    The Climate-forming role of the production process of the forests of Ukraine by Platon Tretyak, Nelia Lukianchuk, Hryhoriy Krynytskyy

    Published 2024-09-01
    “…The indicators of the material-and-energy balance that determine the general enrichment of the air with oxygen (atomic), which is a useful environment-forming sanitary and hygienic factor, grow in proportion to the productivity of the stands. …”
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  17. 1897
  18. 1898

    Levels of Cytokines (IL-1β, IL-2, IL-6, IL-8, TNF-α) and Trace Elements (Zn, Cu) in Breast Milk From Mothers of Preterm and Term Infants by Bilal Ustundag, Erdal Yilmaz, Yasar Dogan, Saadet Akarsu, Halit Canatan, Ihsan Halifeoglu, Gurkan Cikim, A. Denizmen Aygun

    Published 2005-01-01
    “…Levels of cytokines (interleukin [IL]-lβ, IL-2, IL-6, IL-8, tumor necrosis factor-alpha [TNF-α]) were determined by chemiluminesence method, whereas atomic absorption spectrophotometer was used for the determination of Zn and Cu levels. …”
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  19. 1899
  20. 1900