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Trichilemmal carcinoma is an extremely rare malignant cutaneous tumor derived from the outer root sheath of the hair follicles, which most commonly occurs in the sun-exposed areas of elderly individuals. This article introduces a case of trichilemmal carcinoma that occurred on the scalp of a 36-year-old male patient, the first case reported and treated with surgical excision combined with photodynamic therapy. [ABSTRACT FROM AUTHOR]

As age increases, children will face more and more adversity. How effectively they cope with stress and difficulties of life is of great significance to the development of children's mental health and academic achievement. However, few studies have explored how different interpersonal relationships and psychological suzhi work together to influence children's healthy behaviors, particularly healthy coping in adversity. Therefore, this research focused on the teacher–student relationships and coping styles, as well as the chain-mediated effects of peer relationships and psychological suzhi. A total of 688 children (360 boys, 52.3%; Mage = 10.98 and SD = 0.89) completed questionnaires that assessed using teacher–student relationships, peer relationships, psychological suzhi, and coping styles. The results indicated that teacher–student relationships correlated positively with coping styles, peer relationships, and psychological suzhi in children. Besides, teacher–student relationships positively affected coping styles through both the mediating roles of peer relationships and psychological suzhi. This research elucidated the extrinsic and intrinsic factors impacting the coping styles of children, thus providing empirical validation of existing theoretical frameworks. In China, interventions aimed at promoting Chinese children's positive coping could benefit from strategies focused on cultivating high-quality relationships and enhancing psychological suzhi. [ABSTRACT FROM AUTHOR]

The purpose of the current study was to examine the serial mediating effects of rejection sensitivity and social withdrawal on parental psychological control and attitudes toward seeking professional psychological help among senior high school students. In November 2022, 648 students completed a self-report questionnaire. The parental psychological control scale, senior high school students' rejection sensitivity scale, social withdrawal scale, and attitudes toward seeking professional psychological help scale were used for measurement. Correlation analysis showed parental psychological control and rejection sensitivity were positively correlated with social withdrawal (r = 0.387, 0.466, 0.495, all p < 0.001). Parental psychological control and rejection sensitivity were significantly negatively correlated with social withdrawal and attitudes toward seeking professional psychological help (r = −0.325, −0.324, −0.397, all p < 0.001). Mediating effect analysis indicated that parental psychological control had a significant direct effect on attitude toward seeking professional psychological help, and rejection sensitivity and social withdrawal had significant serial mediating effects among parental psychological control and attitudes toward seeking professional psychological help in senior high school students. These aspects warrant attention as they play significant roles in influencing students' willingness to seek psychological assistance. [Journal of Psychosocial Nursing and Mental Health Services, 62(7), 47–55.] [ABSTRACT FROM AUTHOR]

A novel amphoteric polyacrylamide (PDAA) was prepared by inverse emulsion polymerization. The influence of its cationic degree and molecular weight on retention property was discussed. Then, the chemical structure and micromorphology of the obtained PDAA were characterized by Fourier infrared spectrum (FTIR), NMR hydrogen spectrum (1H NMR), gel permeation chromatography (GPC), and scanning electron microscope (SEM). Finally, the synergistic retention effects of polydimethyldiallylammonium chloride (PDADMAC), cationic starch (CS), cationic guar gum (CHPG), cationic chitosan (CTS), and polyamine (PA) on the novel PDAA were investigated. The results showed that the optimum cationic degree and molecular weight of PDAA were 25% and 4 million, respectively. The chemical structure of PDAA was confirmed by FTIR, 1H NMR, and GPC. SEM showed that the particle size of PDAA was between 150 and 600 nm, and the particles were very stable because no broken particles were found. In addition, most of the five cationic polymers have good synergistic retention effect on PDAA, and the order of synergistic effect was PDAA/PDADMAC > PDAA/CTS > PDAA/CS > PDAA/CHPG > PDAA/PA.

Electron-doped Sr2IrO4 is the best candidate for unconventional superconductivity, but direct evidence of superconductivity has not been experimentally confirmed. Therefore, it is urgent to explore the complex and rich physical properties caused by doping. The planar Hall effect (PHE) is a sensitive technique for the characterization of intrinsic magnetic properties in magnetic thin films and is applied widely in spintronic devices. In this work, the PHE for La-doped Sr2IrO4 films as a function of the magnetic field direction and temperature exhibited unique properties caused by electron doping. The amplitude of PHE is proportional to the strength of the applied magnetic field. Remarkably, as the temperature increased, a sign reversal of angle-dependent PHE occurred at 90 K, which indicated the change of magnetic anisotropy. Subsequent variable-temperature traditional Hall measurements and time-resolved optical studies eliminated different types of carrier interactions. The anisotropic magnetoresistance measurements indicated that the sign reversal can be attributed to the changes of a spin structure after electron doping, and the reversal temperature is related to the strength of ferromagnetism. These results provide a platform to study the magnetic interactions and suggest the possibility of realizing thermal controllable magnetic sensor devices in electron-doped Sr2IrO4 films. [ABSTRACT FROM AUTHOR]

High-quality Sr2CrWO6 (SCWO) films have been grown on SrTiO3 (STO) substrate by pulsed laser deposition under low oxygen pressure. With decrease of the film thickness, a drastic conductivity increase is observed. The Hall measurements show that the thicker the film, the lower the carrier density. An extrinsic mechanism of charge doping due to the dominance of oxygen vacancies at SCWO/STO interfaces is proposed. The distribution and gradient of carrier concentration in SCWO films are considered to be related to this phenomenon. Resistivity behavior observed in these films is found to follow the variable range hopping model. It is revealed that with increase of the film thickness, the extent of disorder in the lattice increases, which gives a clear evidence of disorder-induced localization charge carriers in these films. Magnetoresistance measurements show that there is a negative magnetoresistance in SCWO films, which is considered to be caused by the magnetic scattering of magnetic elements Cr3+ and W5+. In addition, a sign reversal of anisotropic magnetoresistance (AMR) in SCWO film is observed for the first time, when the temperature varies across a characteristic value, T M. Magnetizationâ€"temperature measurements demonstrate that this AMR sign reversal is caused by the direction transition of easy axis of magnetization from the in-plane ferromagnetic order at T > T M to the out-of-plane at T < T M. [ABSTRACT FROM AUTHOR]