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1.
Front Psychol ; 15: 1357473, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38895494

RESUMO

While family functioning is crucial to adolescent developmental outcomes, the mediating role of spirituality in the relationship between family functioning and academic-related outcomes of adolescents has been sparsely explored, particularly in non-Western contexts. To address this gap, based on a short-term longitudinal study, we examined the influence of family functioning on the academic values and academic anxiety of 4,981 Chinese adolescents in Sichuan, China, with spirituality as the mediator. We gathered data from students aged 11 and above at Wave 1 and at six months later (Wave 2). Analysis utilizing structural equation modeling indicated that prior family functioning positively and negatively predicted subsequent academic values and academic anxiety respectively, with spirituality as a significant mediator. Theoretically, this study helps to build up a conceptual model on how family functioning and spirituality of adolescents shape academic values and academic anxiety of adolescents. Practically, the present findings highlight the significance of enhancing family functioning and adolescent spirituality to help adolescents strive for academic success.

2.
Artigo em Inglês | MEDLINE | ID: mdl-38833624

RESUMO

As a non-volatile semiconductor memory technology, phase-change memory has a wide range of application prospects as a result of the excellent comprehensive performance. In this paper, multilayer thin films based on Sb2Te3 material were designed and prepared by inserting the Sn15Sb85 layer. The thermal and electrical properties of superlattice-like Sb2Te3/Sn15Sb85 phase-change films can be adjusted by controlling the thickness ratio of Sb2Te3/Sn15Sb85. In comparison to the monolayer Sb2Te3 film, the multilayer layer Sb2Te3/Sn15Sb85 materials have a higher crystallization temperature, larger crystallization activation energy, and longer data lifetime, indicating the great improvement of thermal stability. The changes in the phase structure and vibrational modes of multilayer Sb2Te3/Sn15Sb85 films were characterized by X-ray diffraction and Raman spectroscopy, respectively. The presence of Sn15Sb85 layers restrains grain growth and refines the grain size. The multilayer Sb2Te3/Sn15Sb85 films exhibit better surface flatness, smaller surface potential undulation, and lower thickness variations than single-layer Sb2Te3. Phase-change memory cells based on the [Sb2Te3 (1 nm)/Sn15Sb85 (9 nm)]5 thin film has a lower threshold voltage (1.9 V) and threshold current (3.1 µA) compared to the Ge2Sb2Te5 film. Meanwhile, the electrical heating model of a phase-change memory cell based on a [Sb2Te3 (1 nm)/Sn15Sb85 (9 nm)]5 multilayer structure was established by multiphysics coupling analysis, proving the great improvement in heat transfer performance and efficiency. The experimental and theoretical studies confirm that the insertion of the Sn15Sb85 layer can significantly improve the crystallization properties of Sb2Te3 films, paving the way for optimizing the phase-change materials by regulating the microstructural parameters.

3.
PLoS One ; 19(5): e0303531, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38820298

RESUMO

For a multi-dimensional measure of positive youth development (PYD), its factor structure should be invariant across groups and over time. This study examined the factorial validity of the 44-item short form of the "Chinese Positive Youth Development Scale" (CPYDS-SF) that assesses 15 dimensions of PYD attributes. Using two waves of longitudinal data with a one-year interval in between, this study examined the factor structure of the scale and whether the structure is invariant between gender groups and across time. The data were collected from 3,328 adolescents at Wave 1 and 3,638 adolescents at Wave 2, with a matched sample of 2,905 adolescents (mean age = 12.57 ± 0.72 at Wave 1; 49.54% girls). Confirmatory factor analysis revealed that the 15-factor structure fitted the data well. The findings of invariance tests further supported this structure's invariance across gender and time, indicating a stable factor structure of CPYDS-SF among Chinese adolescents. These findings suggest that CPYDS-SF can be used to examine gender differences and the longitudinal development of PYD qualities among Chinese adolescents.


Assuntos
Desenvolvimento do Adolescente , Humanos , Adolescente , Masculino , Feminino , Análise Fatorial , Criança , Estudos Longitudinais , China , Inquéritos e Questionários , Psicometria/métodos , Povo Asiático , População do Leste Asiático
4.
Clin Res Hepatol Gastroenterol ; 48(5): 102336, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38604293

RESUMO

BACKGROUND: Metabolic associated fatty liver disease (MAFLD) is a prevalent chronic liver condition globally, currently lacking universally recognized therapeutic drugs, thereby increasing the risk of cirrhosis and hepatocellular carcinoma. Research has reported an association between white adipose tissue and MAFLD. SCOPE OF REVIEW: White adipose tissue (WAT) is involved in lipid metabolism and can contribute to the progression of MAFLD by mediating insulin resistance, inflammation, exosomes, autophagy, and other processes. This review aims to elucidate the mechanisms through which WAT plays a role in the development of MAFLD. MAJOR CONCLUSIONS: WAT participates in the occurrence and progression of MAFLD by mediating insulin resistance, inflammation, autophagy, and exosome secretion. Fibrosis and restricted expansion of adipose tissue can lead to the release of more free fatty acids (FFA), exacerbating the progression of MAFLD. WAT-secreted TNF-α and IL-1ß, through the promotion of JNK/JKK/p38MAPK expression, interfere with insulin receptor serine and tyrosine phosphorylation, worsening insulin resistance. Adiponectin, by inhibiting the TLR-4-NF-κB pathway and suppressing M2 to M1 transformation, further inhibits the secretion of IL-6, IL-1ß, and TNF-α, improving insulin resistance in MAFLD patients. Various gene expressions within WAT, such as MBPAT7, Nrf2, and Ube4A, can ameliorate insulin resistance in MAFLD patients. Autophagy-related gene Atg7 promotes the expression of fibrosis-related genes, worsening MAFLD. Non-pharmacological treatments, including diabetes-related medications and exercise, can improve MAFLD.


Assuntos
Tecido Adiposo Branco , Resistência à Insulina , Humanos , Tecido Adiposo Branco/metabolismo , Hepatopatia Gordurosa não Alcoólica/metabolismo , Autofagia , Inflamação/metabolismo , Progressão da Doença , Exossomos/metabolismo , Metabolismo dos Lipídeos
6.
J Phys Chem Lett ; 15(5): 1477-1483, 2024 Feb 08.
Artigo em Inglês | MEDLINE | ID: mdl-38295292

RESUMO

In general, hydrostatic pressure can suppress ferroelectric polarization and further reduce Rashba spin-splitting, considering the spin-orbit coupling effect. Here, we present the design of ferroelectric double perovskite Cs2SnSiI6, which exhibits the anomalous enhancement of Rashba spin-splitting parameters by pressure-induced ferroelectric topological order. The Rashba effect is nonlinear with the decrease in polarization under pressure and reaches a maximum at the pressure-induced Weyl semimetal (WSM) state between the transition from a normal insulator (NI) to a topological insulator (TI). Furthermore, we discover that controlling ferroelectric polarization with an electric field can also induce the topological transition with a large Rashba spin-splitting but under a lower critical pressure. These discoveries show a tunable gaint Rashba effect and pressure-induced topological phase transition for Cs2SnSiI6, which can promote future research on the interaction between the Rashba effect and topological order, and its application to new electronic and spintronic devices.

7.
Neurosci Res ; 199: 21-29, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37442198

RESUMO

Epilepsy is a common neurological disorder worldwide. Hydrogen sulfide (H2S) has been found to have anti-seizure effects. However, its mechanism remains to be explored. In the present study, we showed that a novel H2S donor attenuated neuroinflammation by up-regulating ATP-sensitive potassium channel (KATP) expression to reduce seizures. The novel H2S donor significantly reduced the expression of TNF-α and increased the expression of IL-10 in LPS-treated BV2 cells and the hippocampus of pilocarpine-induced epileptic mice. The modulatory effects of the H2S donor on inflammatory cytokines were prevented by glibenclamide, a common KATP channels blocker. The H2S donor promoted the expression of KATP channel subunits SUR2 and Kir6.1 in LPS-treated BV2 cells and the hippocampus of pilocarpine-induced epileptic mice. In addition, the H2S donor reduced the electroencephalography amplitude of hippocampal epileptic waves and reduced seizures in pilocarpine-induced epileptic mice, which were also attenuated by glibenclamide. These results indicated that the novel H2S donor reduced seizures and regulated microglial inflammatory cytokines by activating KATP channels, which may provide a prospective therapeutic strategy for the anti-seizure effects of H2S donor.


Assuntos
Sulfeto de Hidrogênio , Camundongos , Animais , Sulfeto de Hidrogênio/farmacologia , Sulfeto de Hidrogênio/uso terapêutico , Sulfeto de Hidrogênio/metabolismo , Canais KATP/metabolismo , Doenças Neuroinflamatórias , Glibureto/farmacologia , Lipopolissacarídeos , Pilocarpina , Trifosfato de Adenosina , Citocinas/metabolismo
8.
Neuroreport ; 35(4): 216-224, 2024 Mar 06.
Artigo em Inglês | MEDLINE | ID: mdl-38141009

RESUMO

Cognitive dysfunction is one of the common complications of cerebral ischemia-reperfusion (CI/R) injury after ischemic stroke. Neuroinflammation and oxidative stress are the core pathological mechanism of CI/R injury. The activation of brain derived neurotrophic factor (BDNF)-tyrosine receptor kinase B (TrkB) signaling antagonize cognitive dysfunction in a series of neuropathy. Naringenin (NAR) improves cognitive function in many diseases, but the role of NAR in CI/R injury-induced cognitive dysfunction remains unexplored. The study aimed to explore the potential protective effects of NAR in CI/R injury-induced cognitive dysfunction and underlying mechanism. The rats were exposed to transient middle cerebral artery occlusion (MCAO) and then treated with distilled water or NAR (50 or 100 mg/kg/day, p.o.) for 30 days. The Y-maze test, Novel object recognition test and Morris water maze test were performed to assess cognitive function. The levels of oxidative stress and inflammatory cytokines were measured by ELISA. The expressions of BDNF/TrkB signaling were detected by Western blot. NAR prevented cognitive impairment in MCAO-induced CI/R injury rats. Moreover, NAR inhibited oxidative stress (reduced levels of malondialdehyde and 4-hydroxynonenal, increased activities of superoxide dismutase and Glutathione peroxidase) and inflammatory cytokines (reduced levels of tumor necrosis factor-α, Interleukin-1ß and Interleukin-6), up-regulated the expressions of BDNF and p-TrkB in hippocampus of MCAO-induced CI/R rats. NAR ameliorated cognitive dysfunction of CI/R rats via inhibiting oxidative stress, reducing inflammatory response, and up-regulating BDNF/TrkB signaling pathways in the hippocampus.


Assuntos
Isquemia Encefálica , Disfunção Cognitiva , Flavanonas , Traumatismo por Reperfusão , Ratos , Animais , Ratos Sprague-Dawley , Doenças Neuroinflamatórias , Receptor trkB/metabolismo , Fator Neurotrófico Derivado do Encéfalo/metabolismo , Estresse Oxidativo , Citocinas/metabolismo , Disfunção Cognitiva/tratamento farmacológico , Disfunção Cognitiva/etiologia , Disfunção Cognitiva/metabolismo , Isquemia Encefálica/complicações , Isquemia Encefálica/tratamento farmacológico , Isquemia Encefálica/metabolismo , Hipocampo/metabolismo , Traumatismo por Reperfusão/complicações , Traumatismo por Reperfusão/tratamento farmacológico , Traumatismo por Reperfusão/metabolismo
9.
Cureus ; 15(11): e49127, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38125259

RESUMO

A 32-year-old male presented with recurrent bilateral epistaxis and nasal obstruction, leading to a rare diagnosis of nasopharyngeal angiofibroma. Although primarily observed in adolescents, this case underscores its presence in older populations. The patient underwent a successful endoscopic resection, contributing to the scant documented instances of such cases in adult U.S. males.

10.
Nanotechnology ; 35(4)2023 Nov 07.
Artigo em Inglês | MEDLINE | ID: mdl-37852226

RESUMO

This work presents the optimization of the crystallization behavior and reliability of Sn15Sb85thin films by doping Sm element. The phase transition behaviors induced by thermal were investigated byin situresistance measurement. With the addition of Sm element, Sn15Sb85film exhibits the superior crystallization temperature (232 °C) and data conservation (172.32 °C for 10 years), larger activation energy of crystallization (4.91 eV) and crystalline resistance (∼103Ω), which contributes to the increased thermal stability of the amorphous state and decrease in the programming energy. The Sm-doping can broaden the energy band gap from 0.55 to 1.07 eV. The amorphous Sm and Sn compositions could retard grain growth and refine grain size from 21.13 to 11.13 nm, combining with x-ray diffraction and x-ray photoelectron spectroscopy. The surface morphology of Sn15Sb85film becomes smoother after Sm doping as determined by atomic force microscopy images, resulting in the improved interfacial reliability. Phase change memory devices based on Sm0.095(Sn15Sb85)0.905films can successfully achieve the complete SET and RESET reversible operation process with high operating speed (200 ns) and low power consumption (1.6 × 10-10J). The results suggest that doping the proper concentration of Sm element will be an effectual solution to adapt and optimize the crystallization properties of Sn15Sb85phase change material.

11.
China CDC Wkly ; 5(35): 773-778, 2023 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-37745267

RESUMO

What is already known about this topic?: Maintaining a healthy diet and appropriate weight during pregnancy is crucial for both the expectant mother and the fetus. Unhealthy eating behaviors (UEBs) such as eating out frequently are becoming increasingly prevalent across the globe. However, there is a dearth of research investigating the relationship between UEBs and gestational weight gain (GWG) specifically in the context of Chinese women. What is added by this report?: The study revealed that a majority of pregnant women reported experiencing one or more UEBs such as eating fast, eating three meals irregularly, eating away from home, and skipping breakfast. A positive association was also observed between the number of UEBs and elevated odds of experiencing excessive GWG. What are the implications for public health practice?: The uptake of emerging UEBs is prevalent among pregnant women in China. It is recommended that healthy eating behavior become the focal point of gestational weight management in clinical practice. Moreover, preconception care should take into account customized health education and promotion programs.

12.
Phys Med Biol ; 68(18)2023 09 12.
Artigo em Inglês | MEDLINE | ID: mdl-37619594

RESUMO

Objective. Structured illumination microscopy (SIM) is widely used in various fields of life science research. In clinical practice, it has low phototoxicity, fast imaging speed and no special fluorescent markers. However, SIM is still affected by the scattering medium of biological tissues, resulting in insufficient resolution of the obtained images, which limits the development of life sciences. A novel multi-frame wavelet generation adversarial network (MWGAN) is proposed to improve the scattering reconstruction capability of SIM.Approach. MWGAN is based on two components derived from the original image. A generative adversarial network constructed by wavelet transform is trained to reconstruct some complex details in the cell structure. Multi-frame adversarial network is used to obtain the inter-frame information of the image and use the complementary information of the before and after frames to improve the quality of the model reconstruction.Results. To demonstrate the robustness of MWGAN, multiple low-quality SIM image datasets are tested. Compared with the state-of-the-art methods, the proposed method achieves superior performance in both of the subjective and objective evaluation.Conclusion. MWGAN is effective for improving the clarity of SIM images. Meanwhile, the SIM images reconstructed by multiple frames improve the reconstruction quality of complex regions and allow clearer and dynamic observation of cellular functions.


Assuntos
Iluminação , Microscopia , Análise de Ondaletas
13.
Altern Ther Health Med ; 29(8): 221-227, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37573593

RESUMO

Objective: Generally autoimmune encephalitis (AE) cases present with central nervous system symptoms. Many types of autoantibodies are associated with autoimmune encephalitis, with anti-N-methyl-D-aspartate receptor being the most commonly reported. However, autoimmune encephalitis cases with autoantibodies targeting unknown epitopes are increasingly recognized. This article aims to summarize the clinical experience and assess the feasibility of modified electroconvulsive therapy (MECT) as an adjunctive treatment method for autoimmune encephalitis patients with poor response to first-line immunotherapy and mainly displaying psychiatric symptoms. Methods: This work reports three cases of which two have been diagnosed as autoantibodies targeting unknown epitope autoimmune encephalitis while one has been diagnosed as anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis and all were effectively treated with MECT. Results: All three cases that otherwise failed to respond to standard immunotherapy for controlling psychiatric symptoms exhibited excellent clinical outcomes following MECT. The underlying mechanism of action of MECT is unclear and whether such an effect involves a neurotransmitter rebalance in the brain remains uncertain. At present, we have observed only a small number of clinical cases, warranting further research among a larger number of clinical cases and more systematic multicenter retrospective analysis. Conclusions: It should be noted that, while our experience supports the utility of MECT in the treatment of certain cases of AE, this option should be regarded as an adjuvant therapy after standard immunosuppressive therapy. Clinicians must be aware that patients should be provided with psychiatric or neurological services for timely diagnosis along with timely and appropriate treatment.


Assuntos
Encefalite Antirreceptor de N-Metil-D-Aspartato , Eletroconvulsoterapia , Humanos , Encefalite Antirreceptor de N-Metil-D-Aspartato/terapia , Encefalite Antirreceptor de N-Metil-D-Aspartato/diagnóstico , Autoanticorpos , Estudos Retrospectivos
14.
J Control Release ; 359: 257-267, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-37290723

RESUMO

The clinical application of EDV, a potent antioxidant drug approved for amyotrophic lateral sclerosis (ALS), is limited by its short biological half-life and poor water solubility necessitating hospitalization during intravenous infusion. Nanotechnology-based drug delivery constitutes a powerful tool through inferring drug stability and targeted drug delivery improving drug bioavailability at the diseased site. Nose-to-brain drug delivery offers direct access to the brain bypassing the blood brain barrier and reducing systemic biodistribution. In this study, we designed EDV-loaded poly(lactic-co-glycolic acid) (PLGA)-based polymeric nanoparticles (NP-EDV) for intranasal administration. NPs were formulated by the nanoprecipitation method. Morphology, EDV loading, physicochemical properties, shelf-life stability, in vitro release and pharmacokinetic assessment in mice were conducted. EDV was efficiently loaded into ∼90 nm NPs, stable up to 30 days of storage, at ∼3% drug loading. NP-EDV reduced H2O2-induced oxidative stress toxicity in mouse microglial cell line BV-2. Optical imaging and ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) showed that intranasal delivery of NP-EDV offered higher and more sustained brain uptake of EDV compared to intravenous administration. This study is the first of its kind to develop an ALS drug in a nanoparticulate formulation for nose-to-brain delivery raising hope to ALS patients where currently treatment options are limited to two clinically approved drugs only.


Assuntos
Esclerose Lateral Amiotrófica , Nanopartículas , Camundongos , Animais , Administração Intranasal , Edaravone/metabolismo , Copolímero de Ácido Poliláctico e Ácido Poliglicólico/metabolismo , Portadores de Fármacos/química , Disponibilidade Biológica , Distribuição Tecidual , Cromatografia Líquida , Peróxido de Hidrogênio/metabolismo , Espectrometria de Massas em Tandem , Encéfalo/metabolismo , Sistemas de Liberação de Medicamentos , Tamanho da Partícula
15.
Front Public Health ; 11: 1190534, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37304126

RESUMO

Introduction: The present study investigated how maternal and paternal controls, including behavioral and psychological controls, predict adolescent Internet addiction, as well as the potential moderating effects of adolescent gender and parent-child relationships on the predictions. Methods: Data were collected from 1,974 Chinese adolescents (age range = 14-22; mean = 16.47; SD = 0.87; 1,099 girls) in Guizhou Province, mainland China in November 2021. Internet addiction was measured using the ten-item Internet Addiction Test developed by Kimberly Young, and Parental control and parent-child relationships were measured by the respective subscales derived from the validated Chinese Parent-Child Subsystem Quality Scale. Results: Hierarchical regression analyses revealed that after the covariates were statistically controlled, both parents' behavioral controls showed significant negative predictions on adolescent Internet addiction, while their psychological control tended to positively predict Internet addiction among adolescents, although the effect was only marginal. In addition, the impacts of maternal and paternal controls were equal, and such impacts did not vary between sons and daughters. While adolescent gender was not a significant moderator, the parent-child relationship quality significantly moderated the effects of paternal behavioral control, paternal psychological control, and maternal psychological control on adolescents' Internet addiction. Specifically, the prediction of paternal behavioral control was stronger while the effect of paternal and maternal psychological control was weaker among adolescents with a positive father-child relationship than those with a moderate or poor father-child relationship. Discussion: These findings indicate the protective function of parents' behavioral control and the negative impact of psychological control on the development of adolescent Internet addiction. Further, a positive relationship between the father and the adolescent can strengthen the positive effect of paternal behavioral control and mitigate the negative effects of both parents' psychological controls.


Assuntos
Transtorno de Adição à Internet , Relações Pais-Filho , Adolescente , Feminino , Humanos , Adulto Jovem , China , Pais , Masculino , População do Leste Asiático
16.
J Biophotonics ; 16(8): e202300078, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37184513

RESUMO

This paper describes a methodology to differentiate morphea from lichen sclerosus based on examination with multiphoton microscopy (MPM) composed of two-photon excited fluorescence (TPEF) and second harmonic generation (SHG). Subcellular-resolution images were acquired by MPM from unstained lesion tissues then process spectral analysis to quantify the TPEF and SHG signals. Moreover, U-Net was employed to segment elastic fiber in TPEF images to combine with collagen fiber in SHG images for precise fiber quantification. Predictions of segmentation showed excellent performance on several evaluation indicators. The mIoU, mPA, and F1 score reach 0.8516, 0.9281, and 0.941. The quantitative analysis demonstrated the increase of collagen fibers in morphea compared to that in lichen sclerosus cases. Meanwhile, the great diminution of elastic fiber in the dermis of lichen sclerosus was depicted based on MPM imaging. Thus, MPM was comparable to the histopathological examination and our experimental results accurately distinguish between morphea and lichen sclerosus.


Assuntos
Líquen Escleroso e Atrófico , Esclerodermia Localizada , Humanos , Líquen Escleroso e Atrófico/diagnóstico por imagem , Líquen Escleroso e Atrófico/patologia , Esclerodermia Localizada/diagnóstico por imagem , Microscopia , Tecido Elástico/patologia , Colágeno , Microscopia de Fluorescência por Excitação Multifotônica/métodos
17.
Blood Adv ; 7(17): 4822-4837, 2023 09 12.
Artigo em Inglês | MEDLINE | ID: mdl-37205848

RESUMO

Acute myeloid leukemia (AML) is an aggressive blood cancer that stems from the rapid expansion of immature leukemic blasts in the bone marrow. Mutations in epigenetic factors represent the largest category of genetic drivers of AML. The chromatin assembly factor CHAF1B is a master epigenetic regulator of transcription associated with self-renewal and the undifferentiated state of AML blasts. Upregulation of CHAF1B, as observed in almost all AML samples, promotes leukemic progression by repressing the transcription of differentiation factors and tumor suppressors. However, the specific factors regulated by CHAF1B and their contributions to leukemogenesis are unstudied. We analyzed RNA sequencing data from mouse MLL-AF9 leukemic cells and bone marrow aspirates, representing a diverse collection of pediatric AML samples and identified the E3 ubiquitin ligase TRIM13 as a target of CHAF1B-mediated transcriptional repression associated with leukemogenesis. We found that CHAF1B binds the promoter of TRIM13, resulting in its transcriptional repression. In turn, TRIM13 suppresses self-renewal of leukemic cells by promoting pernicious entry into the cell cycle through its nuclear localization and catalytic ubiquitination of cell cycle-promoting protein, CCNA1. Overexpression of TRIM13 initially prompted a proliferative burst in AML cells, which was followed by exhaustion, whereas loss of total TRIM13 or deletion of its catalytic domain enhanced leukemogenesis in AML cell lines and patient-derived xenografts. These data suggest that CHAF1B promotes leukemic development, in part, by repressing TRIM13 expression and that this relationship is necessary for leukemic progression.


Assuntos
Montagem e Desmontagem da Cromatina , Leucemia Mieloide Aguda , Humanos , Camundongos , Animais , Leucemia Mieloide Aguda/genética , Leucemia Mieloide Aguda/patologia , Linhagem Celular , Ubiquitina-Proteína Ligases/genética , Ubiquitina-Proteína Ligases/metabolismo , Ubiquitinação , Fator 1 de Modelagem da Cromatina/genética , Fator 1 de Modelagem da Cromatina/metabolismo , Proteínas de Ligação a DNA/genética , Proteínas Supressoras de Tumor/metabolismo , Proteínas com Motivo Tripartido/genética , Proteínas com Motivo Tripartido/metabolismo
18.
Front Psychol ; 14: 1116625, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37034931

RESUMO

Introduction: This study validated a Chinese Parental Psychological Control Scale (CPPCS) among secondary school students in mainland China. Methods: The item pool consisting of 65 items was constructed based on consultation with existing measures and focus group interviews of 19 Chinese adolescents. After content validation conducted by 14 experts, a total of 40 items were retained and subject to further factorial validation based on a sample of 963 Chinese adolescents (mean age = 13.39 ± 0.72; 52.23% females). Results: Using the two random-split half samples, exploratory and confirmatory factor analyses retained 30 items that loaded on three factors, including "relational induction" (twelve items), "harsh psychological control" (twelve items), and "social comparison shame" (six items). The three-factor structure was invariant across gender (male versus female) and grades (grade 7 versus grade 8) among the whole sample. Cronbach's αs of the three dimensions in maternal and paternal subscales ranged between 0.89 and 0.92, suggesting adequate internal consistency. The three dimensions were significantly correlated with each other, supporting the scale's convergent validity. The concurrent validity of the CPPCS was supported by the positive correlations between subscales and parental rejection, and the negative correlations between subscales and parental warmth. In addition, while the "harsh psychological control" and "social comparison shame" negatively predicted adolescents' well-being, "relational induction" positively predicted adolescents' well-being. Discussion: The findings suggest that the CPPCS is a promising instrument for measuring multidimensional psychological control among Chinese parents and for investigating and comparing individual dimensions' effect on adolescents' development.

20.
Nanotechnology ; 34(26)2023 Apr 12.
Artigo em Inglês | MEDLINE | ID: mdl-36975182

RESUMO

The effects of yttrium dopants on the phase change behavior and microstructure of Sn15Sb85films have been systematically investigated. The yttrium-doped Sn15Sb85film has the higher phase transition temperature, ten year data retention ability and crystallization activation energy, which represent a great improvement in thermal stability and data retention. X-ray diffraction, transmission electron microscopy and x-ray photoelectron spectroscopy reveal that the amorphous Sn and Y components restrict the grain growth and decrease the grain size. Raman mode typically associated with Sb is altered when the substance crystallized. Atomic force microscopy results show that the surface morphology of the doped films becomes smoother. T-shaped phase change storage cells based on yttrium-doped Sn15Sb85films exhibit the lower power consumption. The results demonstrate that the crystallization characteristics of Sn15Sb85film can be tuned and optimized through the yttrium dopant for the excellent performances of phase change memory.

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