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J Child Adolesc Psychiatr Nurs 2022 Aug 6. Epub 2022 Aug 6.

Kocaeli Provincial Health Directorate, Kocaeli, Turkey.

Background: Physical, psychological, and social impairments are becoming more common in the world due to internet use and excessive use.

Purpose: This study was conducted to determine the relationship between social media addiction (SMA) and the perception of loneliness in the high school period when peer influence is important.

Methodology: This cross-sectional study was conducted with a total of 988 students studying at four high schools in Ankara, the capital city of Turkey, in the fall semester of 2019-2020. Read More

ACS Appl Mater Interfaces 2022 Aug 31;14(31):35873-35882. Epub 2022 Jul 31.

State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China.

Carbon-supported sodium metal anodes (SMAs) have attracted growing interest in next-generation energy storage applications. Sodiophilic sites on carbon hosts such as foreign metal/metal compounds are critical for suppressing Na dendrite growth. However, the foreign active materials are mostly restricted to nanoparticle-like structures, which suffer from severe agglomeration and low metal utilization. Read More

Nanomaterials (Basel) 2022 Jul 8;12(14). Epub 2022 Jul 8.

Faculty of Materials Science and Engineering, "Gheorghe Asachi" Technical University of Iași, Blvd. Dimitrie Mangeron 71A, 700050 Iași, Romania.

A sudden increase in storage modulus () was repeatedly recorded during the heating of powder metallurgy (PM) 66Fe-14Mn-6Si-9Cr-5Ni (mass. %) shape memory alloy specimens subjected to dynamic mechanical analysis (DMA), under constant applied strain amplitude and frequency. This instability, exceeding 12 GPa, was associated with the reverse martensitic transformation of -body centered cubic (bcc) martensite to -face centered cubic () austenite, overlapped on a magnetic transition. Read More

Micromachines (Basel) 2022 Jun 28;13(7). Epub 2022 Jun 28.

School of Mechanical and Design Engineering, University of Portsmouth, Portsmouth PO1 3DJ, UK.

Nitinol-shape memory alloys (SMAs) are widely preferred for applications of automobile, biomedical, aerospace, robotics, and other industrial area. Therefore, precise machining of Nitinol SMA plays a vital role in achieving better surface roughness, higher productivity and geometrical accuracy for the manufacturing of devices. Wire electric discharge machining (WEDM) has proven to be an appropriate technique for machining nitinol shape memory alloy (SMA). Read More

Materials (Basel) 2022 Jul 19;15(14). Epub 2022 Jul 19.

University of Coimbra, CEMMPRE-Centre for Mechanical Engineering, Materials and Processes, Department of Mechanical Engineering, Polo II, R. Luís Reis Santos, 3030-788 Coimbra, Portugal.

Shape Memory Alloys (SMAs) can play an essential role in developing novel active sensors for self-healing, including aeronautical systems. However, the NiTi SMAs available in the market are almost limited to wires, small sheets, and coatings. This restriction is mainly due to the difficulty in processing NiTi through conventional processes. Read More