Current Problem-Solving teaching in primary school science suffers from some misconceptions,such as“insufficient cultivation of problem awareness,lacking drive”,“insufficient deliberation in problem setting,lacking...Current Problem-Solving teaching in primary school science suffers from some misconceptions,such as“insufficient cultivation of problem awareness,lacking drive”,“insufficient deliberation in problem setting,lacking design”,“insufficient emphasis on the solving process,lacking effectiveness”,and“insufficient evaluation of solving results,lacking feedback”.To address these,this paper explores the“Four Emphases and Four Transformations”strategy for Problem-Solving teaching:First,emphasize connecting with life phenomena,transforming subject knowledge into practice;second,emphasize flexibly using questioning forms,rationalizing difficulty settings;third,emphasize providing differentiated guidance,autonomizing the solving process;fourth,emphasize monitoring the learning process,routinizing reflection and evaluation.展开更多
Osteoarthritis(OA)is a prevalent chronic degenerative joint disease that significantly impacts the quality of life for over 500 million individuals affected.OA is increasingly recognized as a whole-joint disorder char...Osteoarthritis(OA)is a prevalent chronic degenerative joint disease that significantly impacts the quality of life for over 500 million individuals affected.OA is increasingly recognized as a whole-joint disorder characterized by complex biochemical and cellular changes across various joint tissues.However,traditional approaches such as nonsteroidal anti-inflammatory drugs(NSAIDs)and corticosteroids often fall short in halting disease progression or restoring joint function.Thereby,recent innovations in OA management are focused on underlying pathophysiology,driving the development of regenerative therapies,targeted antiinflammatory agents and senolytic or senomorphic approaches.Accordingly,this paper reviews current progress in these areas by integrating evidence from clinical and pre-clinical studies to clarify therapeutic limitations,unresolved mechanistic and phenotypic gaps and the emerging strategies required to advance disease-modifying therapy in OA.It further outlines pathways toward precision,phenotype-aligned interventions,an integration that current literature has not yet consolidated.展开更多
Karst landscapes are developed on soluble rocks(primarily limestone),covering about 10-15%of Earth’s ice-free land surface(Ford and Williams,2007).Their unique geological properties have given rise to complex,heterog...Karst landscapes are developed on soluble rocks(primarily limestone),covering about 10-15%of Earth’s ice-free land surface(Ford and Williams,2007).Their unique geological properties have given rise to complex,heterogeneous,and“island-like”habitats that,combined with periodic drought,high calcium,and lownutrient stresses,foster high species diversity and endemism(Clements et al.,2006;Hao et al.,2015;Oliver et al.,2017;Monro et al.,2018).These conditions make karst ecosystems ideal“natural laboratories”for studying speciation and adaptive evolution(Clements et al.,2006;Oliver et al.,2017).展开更多
This study constructs a reflective feedback model based on a pedagogical agent(PA)and explores its impact on students’problem-solving ability and cognitive load.A quasi-experimental design was used in the study,with ...This study constructs a reflective feedback model based on a pedagogical agent(PA)and explores its impact on students’problem-solving ability and cognitive load.A quasi-experimental design was used in the study,with 84 students from a middle school selected as the research subjects(44 in the experimental group and 40 in the control group).The experimental group used the reflective feedback model,while the control group used the factual feedback model.The results show that,compared with factual feedback,the reflective feedback model based on the pedagogical agent significantly improves students’problem-solving ability,especially at the action and thinking levels.In addition,this model effectively reduces students’cognitive load,especially in terms of internal and external load.展开更多
目的基于国产Insight NM/CT Pro SPECT/CT设备建立正常骨骼标准化摄取值(SUV)参考值范围,并探讨影响SUV的相关因素。资料与方法前瞻性纳入2024年3月-2025年7月内蒙古医科大学附属医院初诊发现占位性病变筛查骨转移的219例患者资料,使用I...目的基于国产Insight NM/CT Pro SPECT/CT设备建立正常骨骼标准化摄取值(SUV)参考值范围,并探讨影响SUV的相关因素。资料与方法前瞻性纳入2024年3月-2025年7月内蒙古医科大学附属医院初诊发现占位性病变筛查骨转移的219例患者资料,使用Insight NM/CT Pro SPECT/CT行骨显像,使用基于CT的人工智能分割自动提取各骨区感兴趣区,并计算最大、平均标准化摄取值(SUVmax、SUVmean),建立正常骨骼的SUV参考值范围,并分析性别、年龄、身高、体重、体重指数等因素对SUV的影响。结果各骨区SUV差异有统计学意义(H=1162.289、1278.004,P均0.05)。SUVmax和SUVmean与年龄呈负相关(r=-0.718~-0.162,P均<0.05),与体重(r=0.277~0.523)、体重指数(r=0.246~0.505)呈正相关(P均<0.05)。除肋骨、颈椎、胸椎、肱骨(r=-0.200~0.242,P均<0.05),其他各骨区和总骨区SUVmax、SUVmean均与身高无相关性。结论本研究基于国产Insight NM/CT Pro SPECT/CT骨定量技术获得正常骨骼SUV参考值范围,可为骨病变诊断及评估提供参考,为国产设备的推广应用提供依据。展开更多
BACKGROUND Impaired insight is a core feature of schizophrenia and an established predictor of psychosis in individuals at clinical high risk(CHR).However,the neurocognitive mechanisms underlying impaired insight in C...BACKGROUND Impaired insight is a core feature of schizophrenia and an established predictor of psychosis in individuals at clinical high risk(CHR).However,the neurocognitive mechanisms underlying impaired insight in CHR populations remain unclear.AIM To investigate the role of neurocognitive deficits in impaired insight and examine their combined influence on psychosis risk over a six-year follow-up.METHODS A total of 312 CHR individuals were assessed for insight using the G12 item of the Positive and Negative Syndrome Scale.Participants were categorized into the low-impairment insight group(n=151,G12 score<3)and the high-impairment insight group(n=161,G12 score≥3).Neurocognition was evaluated using the MATRICS Consensus Cognitive Battery.RESULTS Performance on the Brief Visuospatial Memory Test-Revised(BVMT-R)was the only cognitive domain differentiating the insight groups after controlling for positive symptoms.The effect of BVMT-R on insight was most pronounced at moderate symptom levels.Moreover,risk-curve analyses indicated that higher BVMT-R scores were associated with a reduced conversion risk linked to impaired insight.CONCLUSION Incorporating visuospatial memory assessment may improve the identification of those at greatest risk and inform targeted interventions aimed at enhancing insight and reducing conversion to psychosis.展开更多
This study integrates multiple sources of data(transaction data,policy text,public opinion data)with visualization techniques(such as heat maps,time-series trend charts,3D building brochures)to construct an analysis f...This study integrates multiple sources of data(transaction data,policy text,public opinion data)with visualization techniques(such as heat maps,time-series trend charts,3D building brochures)to construct an analysis framework for the Chengdu real estate market.By using the Adaptive Neuro-Fuzzy Inference System(ANFIS)prediction model,spatial GIS(Geographic Information System analysis)analysis,and interactive dashboards,this study reveals market differentiation,policy impacts,and changes in demand structure,thereby providing decision support for the government,enterprises,and homebuyers.展开更多
Papaya(Carica papaya L.)is an important tropical and subtropical fruit crop,and understanding its genome is essential for breeding.In this study,we assembled a high-quality genome of 344.17 Mb for the newly cultivated...Papaya(Carica papaya L.)is an important tropical and subtropical fruit crop,and understanding its genome is essential for breeding.In this study,we assembled a high-quality genome of 344.17 Mb for the newly cultivated papaya‘Zihui’,which contains 22250 proteincoding genes.By integrating 201 resequenced papaya genomes,we identified four distinct papaya groups and a 34 Mb genomic region with strong domestication selection signals.Within these regions,two key genes associated with papaya yield were discovered:Cp_zihui06549,encoding a leucine-rich receptor-like protein kinase,and Cp_zihui06768,encoding the accumulation of photosystem one 1(APO1)protein.Heterologous expression of Cp_zihui06549 in tomato confirmed that the total number of fruits in transgenic lines more than doubled compared to wild-type plants,resulting in a significant yield increase.Furthermore,we constructed a pan-genome of papaya and obtained a 77.41 Mb nonreference sequence containing 1543 genes.Within this pan-genome,2483 variable genes,we detected,including four genes annotated as the‘terpene synthase activity’Gene Ontology term,which were lost in cultivars during domestication.Finally,gene retention analyses were performed using gene presence and absence variation data and differentially expressed genes across various tissues and organs.This study provides valuable insights into the genes and loci associated with phenotypes and domestication processes,laying a solid foundation for future papaya breeding efforts.展开更多
Autophagy plays a crucial role in axon regeneration by maintaining cellular homeostasis and promoting the clearance of damaged organelles and proteins,which is essential for the growth and repair of axons.In response ...Autophagy plays a crucial role in axon regeneration by maintaining cellular homeostasis and promoting the clearance of damaged organelles and proteins,which is essential for the growth and repair of axons.In response to axonal injury,autophagy is upregulated to facilitate the removal of cellular debris and support the recycling of essential components needed for regeneration.展开更多
Objective: Problem-solving should be a fundamental component of nursing education because It is a core ability for professional nurses. For more effective learning, nursing students must understand the relationship be...Objective: Problem-solving should be a fundamental component of nursing education because It is a core ability for professional nurses. For more effective learning, nursing students must understand the relationship between self-directed learning readiness and problem-solving ability. The aim of this study was to investigate the relationships among self-directed learning readiness, problemsolving ability, and academic self-efficacy among undergraduate nursing students.Methods: From November to December 2016, research was conducted among 500 nursing undergraduate students in Tianjin, China,using a self-directed learning readiness scale, an academic self-efficacy scale, a questionnaire related to problem-solving, and selfdesigned demographics. The response rate was 85.8%.Results: For Chinese nursing students, self-directed learning readiness and academic self-efficacy reached a medium-to-high level,while problem-solving abilities were at a low level. There were significant positive correlations among the students' self-directed learning readiness, academic self-efficacy, and problem-solving ability. Furthermore, academic self-efficacy demonstrated a mediating effect on the relationship between the students' self-directed learning readiness and problem-solving ability.Conclusions: To enhance students' problem-solving ability, nursing educators should pay more attention to the positive impact of self-directed learning readiness and self-efficacy in nursing students' education.展开更多
Proanthocyanidins(PAs),anthocyanins,and flavonols are key flavonoids that play diverse roles in plant physiology and human health.Despite originating from a shared biosynthetic pathway,the regulatory mechanisms of PA ...Proanthocyanidins(PAs),anthocyanins,and flavonols are key flavonoids that play diverse roles in plant physiology and human health.Despite originating from a shared biosynthetic pathway,the regulatory mechanisms of PA biosynthesis and the cooperative regulation of different kinds of flavonoids remain elusive,particularly in flower tissues or organs.Here,we elucidated the regulatory network governing PA biosynthesis in Freesia hybrida‘Red River®’by characterizing four TT2-type MYB transcription factors,designated FhMYBPAs.Phylogenetic analysis,subcellular localization,and transactivation assays predicted their roles as PA-related activators.Pearson correlation analysis revealed significant correlations between FhMYBPAs and PA accumulation in various floral tissues and development stages.Functional studies demonstrated that FhMYBPAs activated PA biosynthesis by directly binding to the promoters of target genes,which can be enhanced by FhTT8L.Additionally,a hierarchical and feedback regulatory model involving FhTTG1,FhMYB27,and FhMYBx was proposed for PA biosynthesis.Furthermore,comparative analysis of flavonoid-related MYB factors involving FhPAP1,FhMYB5,FhMYBF1,and FhMYB21L2 highlighted their roles in regulating PA,anthocyanin,and flavonol biosynthesis,with some exhibiting versatile regulations.Overall,our findings provide insights into the spatio-temporal regulation of flavonoids in flowers and expand our understanding of MYB-mediated transcriptional regulation of specialized metabolites in plants.展开更多
The donkey is an important livestock species that can provide milk,meat,and skin and belongs to the family Equus.The first genome of a male donkey was sequenced and de novo assembled using a whole-genome shotgun strat...The donkey is an important livestock species that can provide milk,meat,and skin and belongs to the family Equus.The first genome of a male donkey was sequenced and de novo assembled using a whole-genome shotgun strategy(Huang et al.,2015).Subsequently,the donkey genome showed greater improvement in continuity and chromosome length than a previous assembly(Renaud et al.,2018).展开更多
The electrocatalytic urea oxidation reaction(UOR)has emerged as an energy-efficient alternative to the traditional oxygen evolution reaction for hydrogen production,with mechanistic understanding being critical for th...The electrocatalytic urea oxidation reaction(UOR)has emerged as an energy-efficient alternative to the traditional oxygen evolution reaction for hydrogen production,with mechanistic understanding being critical for the rational design of catalysts.This review systematically summarizes recent advances in in situ characterization techniques for elucidating the dynamic reaction mechanisms of UOR.Studies reveal that phase transitions,valence state migration,and electronic structure evolution of catalysts under operational conditions are key factors governing activity and stability.Techniques such as in situ X-ray diffraction,X-ray absorption spectroscopy,Raman spectroscopy,and Fourier-transform infrared spectroscopy enable real-time monitoring of catalyst reconstruction,intermediate evolution,and interfacial adsorption behavior,overcoming the environmental deviations inherent in conventional ex situ characterization.When combined with theoretical calculations,these methods provide direct evidence for identifying active-site configurations,reaction pathways,and rate-determining steps.In addition,special emphasis is placed on multimodal in situ strategies for deciphering synergistic effects in nickel-based catalysts,while current challenges,including non-alkaline systems,real wastewater environments,and multi-metal cooperation mechanisms,are critically discussed.Future research should focus on developing novel in situ approaches for complex systems and establishing a mutually reinforcing framework integrating theoretical prediction and experimental validation,thereby advancing UOR catalyst design from empirical exploration to mechanism-guided optimization.展开更多
Very long chain-saturated and-polyunsaturated fatty acids(VLC-SFA and VLC-PUFA, respectively) are a functionally important class of fatty acids containing 28 carbons or more in their acyl chain. They are synthesized b...Very long chain-saturated and-polyunsaturated fatty acids(VLC-SFA and VLC-PUFA, respectively) are a functionally important class of fatty acids containing 28 carbons or more in their acyl chain. They are synthesized by the elongation of very long fatty acids-4(ELOVL4) enzyme, expressed mainly in the brain, retina, skin, testes, and meibomian gland, where these fatty acids are found(Agbaga et al., 2008). Further, these organs exhibit tissuespecific VLC-PUFA and VLC-SFA biosynthesis and incorporation into complex lipids for specific functions. In the brain, skin, and Meibomian glands, the ELOVL4 mainly makes VLC-SFA, which are incorporated into complex sphingolipids. In the retina, the ELOVL4 makes VLC-PUFA that are incorporated into phosphatidylcholine, that are critical for visual function, while in testes and sperm, the VLC-PUFA are incorporated into sphingolipids that are critical for fertility(Yeboah et al., 2021).展开更多
Symbiotic nitrogen fixation in members of the Fabaceae family is highly efficient and beneficial for global agriculture,but not all species in this family form root nodules with rhizobial bacteria.Nodulation mainly oc...Symbiotic nitrogen fixation in members of the Fabaceae family is highly efficient and beneficial for global agriculture,but not all species in this family form root nodules with rhizobial bacteria.Nodulation mainly occurs in plants belonging to the Papilionoideae and Caesalpinioideae subfamilies(Tederso0 et al.,2018;van Velzen et al.,2019).Nodulation mechanisms in Fabaceae are well studied(Yang et al.,2022),and genomic comparisons of nodulating and non-nodulating host species can provide valuable insights into the evolutionary and genetic basis of this key process.展开更多
With people living longer,the societal impact of age-related cognitive decline is becoming more pronounced(Crimmins,2015).Thus,it is increasingly important to comprehend the cognitive shifts linked to aging-whether th...With people living longer,the societal impact of age-related cognitive decline is becoming more pronounced(Crimmins,2015).Thus,it is increasingly important to comprehend the cognitive shifts linked to aging-whether they are physiological or pathological.展开更多
The pear(Pyrus spp.),a perennial fruit tree,is subjected to genetic alterations over decades or even centuries to adapt to complex climatic and cultivation conditions.Genome-wide studies of deleterious mutations remai...The pear(Pyrus spp.),a perennial fruit tree,is subjected to genetic alterations over decades or even centuries to adapt to complex climatic and cultivation conditions.Genome-wide studies of deleterious mutations remain limited in perennial fruit trees,particularly regarding the effects of domestication on deleterious mutations.In this study,232 pear accessions were resequenced,and 9909773 single-nucleotide polymorphisms(SNPs),and 139335 deleterious mutation sites,were identified genome wide.A higher proportion of deleterious mutations in coding regions(1.4%)were observed in the pear genome than annual crops.During domestication,a reduction in deleterious mutations in Pyrus pyrifolia/P.bretschneideri was found to be associated with their decreases in selective sweep regions.Conversely,an increase in the number of deleterious mutations in P.communis was observed,which may be related to a higher occurrence within selective sweep regions.In P.ussuriensis,an overall increasing trend in deleterious mutations was identified,which was determined to be unrelated to domestication or gene introgression but instead linked to its relatively high heterozygosity.Differential deleterious mutation genes were identified during the domestication process.Among these,the PyMYC2 gene,associated with stone cell synthesis,was identified through GWAS,overexpression of PyMYC2 in pear callus significantly promoter lignin biosynthesis,PyMYC2 contains three nonsynonymous deleterious mutations that were selected during the domestication of Asian pears.This research provides new insights into developing future breeding strategies aimed at improving agronomic traits and offers a framework for studying deleterious mutation patterns in the domestication of perennial fruit trees.展开更多
Unlike general education,vocational education aims to nurture skilled people for various sectors in the society.The development of students’problem analysis and problem-solving skills is crucial.As an important part ...Unlike general education,vocational education aims to nurture skilled people for various sectors in the society.The development of students’problem analysis and problem-solving skills is crucial.As an important part of the vocational education system,skills competitions are considered a“booster”for improving the quality of teaching in vocational institutions.This paper examines the problem-solving skills of students in preparation for skills competition.First of all,we introduce China’s education policies and conduct a review of early scholars’views,followed by a discussion on the specific problems faced in the design of the entry for skills competition and an exploration of the process of enhancing students’problem-solving skills around these problems;we then propose several suggestions for vocational institutions to enhance their participation in skills competitions.Skills competitions provide a“special stage”for students in vocational institutions to show their abilities.The question of how this“stage”can be utilized to better improve students’abilities is worth exploring in different fields.展开更多
基金funded by Humanities and Social Sciences Research Youth Fund of the Ministry of Education in China:Research on the Assessment of Middle School Students’Scientific Inquiry Ability Based on Multimodal Data[25YJC880074].
摘要Current Problem-Solving teaching in primary school science suffers from some misconceptions,such as“insufficient cultivation of problem awareness,lacking drive”,“insufficient deliberation in problem setting,lacking design”,“insufficient emphasis on the solving process,lacking effectiveness”,and“insufficient evaluation of solving results,lacking feedback”.To address these,this paper explores the“Four Emphases and Four Transformations”strategy for Problem-Solving teaching:First,emphasize connecting with life phenomena,transforming subject knowledge into practice;second,emphasize flexibly using questioning forms,rationalizing difficulty settings;third,emphasize providing differentiated guidance,autonomizing the solving process;fourth,emphasize monitoring the learning process,routinizing reflection and evaluation.
基金supported by the National Key Research and Development Program of China(2022YFA1207500)to D.CShenzhen Medical Research Fund B2502005 to D.C+1 种基金supported by the Natural Science Foundation of China(NSFC)grant(82394445)to D.CShenzhen Science and Technology Research Fund(JCYJ20220818101414032)to L.T.
摘要Osteoarthritis(OA)is a prevalent chronic degenerative joint disease that significantly impacts the quality of life for over 500 million individuals affected.OA is increasingly recognized as a whole-joint disorder characterized by complex biochemical and cellular changes across various joint tissues.However,traditional approaches such as nonsteroidal anti-inflammatory drugs(NSAIDs)and corticosteroids often fall short in halting disease progression or restoring joint function.Thereby,recent innovations in OA management are focused on underlying pathophysiology,driving the development of regenerative therapies,targeted antiinflammatory agents and senolytic or senomorphic approaches.Accordingly,this paper reviews current progress in these areas by integrating evidence from clinical and pre-clinical studies to clarify therapeutic limitations,unresolved mechanistic and phenotypic gaps and the emerging strategies required to advance disease-modifying therapy in OA.It further outlines pathways toward precision,phenotype-aligned interventions,an integration that current literature has not yet consolidated.
基金equally funded by the Joint Funds of the National Natural Science Foundation of China(U2571210)the Strategic Priority Research Program of Kunming Institute of Botany,Chinese Academy of Sciences(KIBXD202401)+2 种基金National Natural Science Foundation of China(32471734)the Yuelushan Laboratory Breeding Projectthe Caiyun Postdoctoral Program of Yunnan Province。
摘要Karst landscapes are developed on soluble rocks(primarily limestone),covering about 10-15%of Earth’s ice-free land surface(Ford and Williams,2007).Their unique geological properties have given rise to complex,heterogeneous,and“island-like”habitats that,combined with periodic drought,high calcium,and lownutrient stresses,foster high species diversity and endemism(Clements et al.,2006;Hao et al.,2015;Oliver et al.,2017;Monro et al.,2018).These conditions make karst ecosystems ideal“natural laboratories”for studying speciation and adaptive evolution(Clements et al.,2006;Oliver et al.,2017).
基金023 Zhejiang Provincial Department of Education General Project:Research on an interdisciplinary teaching model to promote the development of computational thinking in the context of the new curriculum standards[Grant NO:Y202351596]Key Project of Zhejiang Provincial Education Science Planning:Research on an interdisciplinary teaching model to promote students’computational thinking from multiple analytical perspectives[Grant NO:2025SB103].
摘要This study constructs a reflective feedback model based on a pedagogical agent(PA)and explores its impact on students’problem-solving ability and cognitive load.A quasi-experimental design was used in the study,with 84 students from a middle school selected as the research subjects(44 in the experimental group and 40 in the control group).The experimental group used the reflective feedback model,while the control group used the factual feedback model.The results show that,compared with factual feedback,the reflective feedback model based on the pedagogical agent significantly improves students’problem-solving ability,especially at the action and thinking levels.In addition,this model effectively reduces students’cognitive load,especially in terms of internal and external load.
摘要目的基于国产Insight NM/CT Pro SPECT/CT设备建立正常骨骼标准化摄取值(SUV)参考值范围,并探讨影响SUV的相关因素。资料与方法前瞻性纳入2024年3月-2025年7月内蒙古医科大学附属医院初诊发现占位性病变筛查骨转移的219例患者资料,使用Insight NM/CT Pro SPECT/CT行骨显像,使用基于CT的人工智能分割自动提取各骨区感兴趣区,并计算最大、平均标准化摄取值(SUVmax、SUVmean),建立正常骨骼的SUV参考值范围,并分析性别、年龄、身高、体重、体重指数等因素对SUV的影响。结果各骨区SUV差异有统计学意义(H=1162.289、1278.004,P均0.05)。SUVmax和SUVmean与年龄呈负相关(r=-0.718~-0.162,P均<0.05),与体重(r=0.277~0.523)、体重指数(r=0.246~0.505)呈正相关(P均<0.05)。除肋骨、颈椎、胸椎、肱骨(r=-0.200~0.242,P均<0.05),其他各骨区和总骨区SUVmax、SUVmean均与身高无相关性。结论本研究基于国产Insight NM/CT Pro SPECT/CT骨定量技术获得正常骨骼SUV参考值范围,可为骨病变诊断及评估提供参考,为国产设备的推广应用提供依据。
基金Supported by the Ministry of Science and Technology of China,National Key RD Program of China,No.2023YFC2506800Science and Technology Commission of Shanghai Municipality,No.23Y11900500,No.23Y11906000 and No.23Y11906100+2 种基金Shanghai Municipal Health Commission,No.202340015Shanghai Mental Health Center,No.CRC2018YB01 and No.2024-QM022025 Yuanshen Rehabilitation Research Institute Research Center Project of Shanghai Jiao Tong University School of Medicine(yskfl-25-1027-1).
摘要BACKGROUND Impaired insight is a core feature of schizophrenia and an established predictor of psychosis in individuals at clinical high risk(CHR).However,the neurocognitive mechanisms underlying impaired insight in CHR populations remain unclear.AIM To investigate the role of neurocognitive deficits in impaired insight and examine their combined influence on psychosis risk over a six-year follow-up.METHODS A total of 312 CHR individuals were assessed for insight using the G12 item of the Positive and Negative Syndrome Scale.Participants were categorized into the low-impairment insight group(n=151,G12 score<3)and the high-impairment insight group(n=161,G12 score≥3).Neurocognition was evaluated using the MATRICS Consensus Cognitive Battery.RESULTS Performance on the Brief Visuospatial Memory Test-Revised(BVMT-R)was the only cognitive domain differentiating the insight groups after controlling for positive symptoms.The effect of BVMT-R on insight was most pronounced at moderate symptom levels.Moreover,risk-curve analyses indicated that higher BVMT-R scores were associated with a reduced conversion risk linked to impaired insight.CONCLUSION Incorporating visuospatial memory assessment may improve the identification of those at greatest risk and inform targeted interventions aimed at enhancing insight and reducing conversion to psychosis.
基金Chengdu City Philosophy and Social Sciences Research Center“artificial intelligence+urban communication”theory and Application Research Center Project“Chengdu real estate vertical market public opinion data visualization research”(Project No.RZCC2025017).
摘要This study integrates multiple sources of data(transaction data,policy text,public opinion data)with visualization techniques(such as heat maps,time-series trend charts,3D building brochures)to construct an analysis framework for the Chengdu real estate market.By using the Adaptive Neuro-Fuzzy Inference System(ANFIS)prediction model,spatial GIS(Geographic Information System analysis)analysis,and interactive dashboards,this study reveals market differentiation,policy impacts,and changes in demand structure,thereby providing decision support for the government,enterprises,and homebuyers.
基金supported by the‘Young and Middle-aged Academic Leaders’Training Fund Project of Guangdong Academy of Agricultural Sciences(Grant no.R2023PY-JX005)the Guangdong Basic and Applied Basic Research Foundation(Grant no.2022A1515010697)+1 种基金the Cultivation Project of Fruit Tree Research Institute,Guangdong Academy of Agricultural Sciences(Grant no.23107)the Guangzhou Science and Technology Planning Project(Grant no.2023B03J1369).
摘要Papaya(Carica papaya L.)is an important tropical and subtropical fruit crop,and understanding its genome is essential for breeding.In this study,we assembled a high-quality genome of 344.17 Mb for the newly cultivated papaya‘Zihui’,which contains 22250 proteincoding genes.By integrating 201 resequenced papaya genomes,we identified four distinct papaya groups and a 34 Mb genomic region with strong domestication selection signals.Within these regions,two key genes associated with papaya yield were discovered:Cp_zihui06549,encoding a leucine-rich receptor-like protein kinase,and Cp_zihui06768,encoding the accumulation of photosystem one 1(APO1)protein.Heterologous expression of Cp_zihui06549 in tomato confirmed that the total number of fruits in transgenic lines more than doubled compared to wild-type plants,resulting in a significant yield increase.Furthermore,we constructed a pan-genome of papaya and obtained a 77.41 Mb nonreference sequence containing 1543 genes.Within this pan-genome,2483 variable genes,we detected,including four genes annotated as the‘terpene synthase activity’Gene Ontology term,which were lost in cultivars during domestication.Finally,gene retention analyses were performed using gene presence and absence variation data and differentially expressed genes across various tissues and organs.This study provides valuable insights into the genes and loci associated with phenotypes and domestication processes,laying a solid foundation for future papaya breeding efforts.
摘要Autophagy plays a crucial role in axon regeneration by maintaining cellular homeostasis and promoting the clearance of damaged organelles and proteins,which is essential for the growth and repair of axons.In response to axonal injury,autophagy is upregulated to facilitate the removal of cellular debris and support the recycling of essential components needed for regeneration.
摘要Objective: Problem-solving should be a fundamental component of nursing education because It is a core ability for professional nurses. For more effective learning, nursing students must understand the relationship between self-directed learning readiness and problem-solving ability. The aim of this study was to investigate the relationships among self-directed learning readiness, problemsolving ability, and academic self-efficacy among undergraduate nursing students.Methods: From November to December 2016, research was conducted among 500 nursing undergraduate students in Tianjin, China,using a self-directed learning readiness scale, an academic self-efficacy scale, a questionnaire related to problem-solving, and selfdesigned demographics. The response rate was 85.8%.Results: For Chinese nursing students, self-directed learning readiness and academic self-efficacy reached a medium-to-high level,while problem-solving abilities were at a low level. There were significant positive correlations among the students' self-directed learning readiness, academic self-efficacy, and problem-solving ability. Furthermore, academic self-efficacy demonstrated a mediating effect on the relationship between the students' self-directed learning readiness and problem-solving ability.Conclusions: To enhance students' problem-solving ability, nursing educators should pay more attention to the positive impact of self-directed learning readiness and self-efficacy in nursing students' education.
基金supported by the National Natural Science Foundation of China(32100211,32272751)the China Postdoctoral Science Foundation(2023 M740580)+2 种基金the Department of Science and Technology of Jilin Province(20220508112RC)Science and Technology Projects of HNTI(KY2022YC0003)the Fundamental Research Funds for the Central Universities(2412023YQ005,2412024QD024).
摘要Proanthocyanidins(PAs),anthocyanins,and flavonols are key flavonoids that play diverse roles in plant physiology and human health.Despite originating from a shared biosynthetic pathway,the regulatory mechanisms of PA biosynthesis and the cooperative regulation of different kinds of flavonoids remain elusive,particularly in flower tissues or organs.Here,we elucidated the regulatory network governing PA biosynthesis in Freesia hybrida‘Red River®’by characterizing four TT2-type MYB transcription factors,designated FhMYBPAs.Phylogenetic analysis,subcellular localization,and transactivation assays predicted their roles as PA-related activators.Pearson correlation analysis revealed significant correlations between FhMYBPAs and PA accumulation in various floral tissues and development stages.Functional studies demonstrated that FhMYBPAs activated PA biosynthesis by directly binding to the promoters of target genes,which can be enhanced by FhTT8L.Additionally,a hierarchical and feedback regulatory model involving FhTTG1,FhMYB27,and FhMYBx was proposed for PA biosynthesis.Furthermore,comparative analysis of flavonoid-related MYB factors involving FhPAP1,FhMYB5,FhMYBF1,and FhMYB21L2 highlighted their roles in regulating PA,anthocyanin,and flavonol biosynthesis,with some exhibiting versatile regulations.Overall,our findings provide insights into the spatio-temporal regulation of flavonoids in flowers and expand our understanding of MYB-mediated transcriptional regulation of specialized metabolites in plants.
基金supported by the Third National Census of Livestock and Poultry Genetic Resources(K4050422227)the 2020 Scientist plus Engineer program of Shaanxi Province of Chinathe Central Guidance on Local Science and Technology Development Fund(K3030922098).
摘要The donkey is an important livestock species that can provide milk,meat,and skin and belongs to the family Equus.The first genome of a male donkey was sequenced and de novo assembled using a whole-genome shotgun strategy(Huang et al.,2015).Subsequently,the donkey genome showed greater improvement in continuity and chromosome length than a previous assembly(Renaud et al.,2018).
摘要The electrocatalytic urea oxidation reaction(UOR)has emerged as an energy-efficient alternative to the traditional oxygen evolution reaction for hydrogen production,with mechanistic understanding being critical for the rational design of catalysts.This review systematically summarizes recent advances in in situ characterization techniques for elucidating the dynamic reaction mechanisms of UOR.Studies reveal that phase transitions,valence state migration,and electronic structure evolution of catalysts under operational conditions are key factors governing activity and stability.Techniques such as in situ X-ray diffraction,X-ray absorption spectroscopy,Raman spectroscopy,and Fourier-transform infrared spectroscopy enable real-time monitoring of catalyst reconstruction,intermediate evolution,and interfacial adsorption behavior,overcoming the environmental deviations inherent in conventional ex situ characterization.When combined with theoretical calculations,these methods provide direct evidence for identifying active-site configurations,reaction pathways,and rate-determining steps.In addition,special emphasis is placed on multimodal in situ strategies for deciphering synergistic effects in nickel-based catalysts,while current challenges,including non-alkaline systems,real wastewater environments,and multi-metal cooperation mechanisms,are critically discussed.Future research should focus on developing novel in situ approaches for complex systems and establishing a mutually reinforcing framework integrating theoretical prediction and experimental validation,thereby advancing UOR catalyst design from empirical exploration to mechanism-guided optimization.
基金supported by NEI/NIH R01 EY030513NIAMS/NIH R21-AR076035Multi-PI Team Science grant from Presbyterian Health Foundation。
摘要Very long chain-saturated and-polyunsaturated fatty acids(VLC-SFA and VLC-PUFA, respectively) are a functionally important class of fatty acids containing 28 carbons or more in their acyl chain. They are synthesized by the elongation of very long fatty acids-4(ELOVL4) enzyme, expressed mainly in the brain, retina, skin, testes, and meibomian gland, where these fatty acids are found(Agbaga et al., 2008). Further, these organs exhibit tissuespecific VLC-PUFA and VLC-SFA biosynthesis and incorporation into complex lipids for specific functions. In the brain, skin, and Meibomian glands, the ELOVL4 mainly makes VLC-SFA, which are incorporated into complex sphingolipids. In the retina, the ELOVL4 makes VLC-PUFA that are incorporated into phosphatidylcholine, that are critical for visual function, while in testes and sperm, the VLC-PUFA are incorporated into sphingolipids that are critical for fertility(Yeboah et al., 2021).
基金supported by the National Natural Science Foundation of China(No.32160142)Guangxi Natural Science Foundation(No.2023GXNSFDA026034)+3 种基金State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources(SKLCUSAb202302)to H.W.,the National Natural Science Foundation of China(No.32460062)to Y.L.,and 1+9 Leading the Charge with Open Competition'project of Sichuan Academy of Agricultural Sciences(1+9KJGG010)Fruit tree breeding project in Sichuan Province(2021YFYZ0023)to H.X.
摘要Symbiotic nitrogen fixation in members of the Fabaceae family is highly efficient and beneficial for global agriculture,but not all species in this family form root nodules with rhizobial bacteria.Nodulation mainly occurs in plants belonging to the Papilionoideae and Caesalpinioideae subfamilies(Tederso0 et al.,2018;van Velzen et al.,2019).Nodulation mechanisms in Fabaceae are well studied(Yang et al.,2022),and genomic comparisons of nodulating and non-nodulating host species can provide valuable insights into the evolutionary and genetic basis of this key process.
基金Clévio Nóbrega’s laboratory is funded by the Cure CSB projectthe Viljem Julijan Association for Children with Rare Diseases(Slovenia)+1 种基金the Algarve Biomedical Center Research Institute(ABC-Ri)funded by CRESC Algarve 2020(Operation Code:ALG-01-0145-FEDER-072586)(to CN)。
摘要With people living longer,the societal impact of age-related cognitive decline is becoming more pronounced(Crimmins,2015).Thus,it is increasingly important to comprehend the cognitive shifts linked to aging-whether they are physiological or pathological.
基金supported by the National Science Foundation of China(nos 32230097 and 32172531)the National Key Research and Development Program of China(no.2022YFD1200503)+2 种基金the Earmarked Fund for China Agriculture Research System(CARS-28)the Earmarked Fund for Jiangsu Agricultural Industry Technology System JATS[2023]412the Natural Science Foundation of Jiangsu Province for Young Scholar(no.BK20221010).
摘要The pear(Pyrus spp.),a perennial fruit tree,is subjected to genetic alterations over decades or even centuries to adapt to complex climatic and cultivation conditions.Genome-wide studies of deleterious mutations remain limited in perennial fruit trees,particularly regarding the effects of domestication on deleterious mutations.In this study,232 pear accessions were resequenced,and 9909773 single-nucleotide polymorphisms(SNPs),and 139335 deleterious mutation sites,were identified genome wide.A higher proportion of deleterious mutations in coding regions(1.4%)were observed in the pear genome than annual crops.During domestication,a reduction in deleterious mutations in Pyrus pyrifolia/P.bretschneideri was found to be associated with their decreases in selective sweep regions.Conversely,an increase in the number of deleterious mutations in P.communis was observed,which may be related to a higher occurrence within selective sweep regions.In P.ussuriensis,an overall increasing trend in deleterious mutations was identified,which was determined to be unrelated to domestication or gene introgression but instead linked to its relatively high heterozygosity.Differential deleterious mutation genes were identified during the domestication process.Among these,the PyMYC2 gene,associated with stone cell synthesis,was identified through GWAS,overexpression of PyMYC2 in pear callus significantly promoter lignin biosynthesis,PyMYC2 contains three nonsynonymous deleterious mutations that were selected during the domestication of Asian pears.This research provides new insights into developing future breeding strategies aimed at improving agronomic traits and offers a framework for studying deleterious mutation patterns in the domestication of perennial fruit trees.
基金the project of China Vocational Education Association(Project Number:ZJS2022YB024)the project of Innovation and Development Center of Ideological and Political Work(Beijing Polytechnic),Ministry of Education(Project Number:2022X305-SXZC).
摘要Unlike general education,vocational education aims to nurture skilled people for various sectors in the society.The development of students’problem analysis and problem-solving skills is crucial.As an important part of the vocational education system,skills competitions are considered a“booster”for improving the quality of teaching in vocational institutions.This paper examines the problem-solving skills of students in preparation for skills competition.First of all,we introduce China’s education policies and conduct a review of early scholars’views,followed by a discussion on the specific problems faced in the design of the entry for skills competition and an exploration of the process of enhancing students’problem-solving skills around these problems;we then propose several suggestions for vocational institutions to enhance their participation in skills competitions.Skills competitions provide a“special stage”for students in vocational institutions to show their abilities.The question of how this“stage”can be utilized to better improve students’abilities is worth exploring in different fields.