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Sepsis one-hour bundle management combined with psychological intervention on negative emotion and sleep quality in patients with sepsis
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作者 Ming Xia Guang-Yan Dong +2 位作者 Shi-Chao Zhu Huan-Min Xing Li-Ming Li 《World Journal of Psychiatry》 SCIE 2024年第2期266-275,共10页
BACKGROUND Sepsis is a serious infectious disease caused by various systemic inflammatory responses and is ultimately life-threatening.Patients usually experience depression and anxiety,which affect their sleep qualit... BACKGROUND Sepsis is a serious infectious disease caused by various systemic inflammatory responses and is ultimately life-threatening.Patients usually experience depression and anxiety,which affect their sleep quality and post-traumatic growth levels.AIM To investigate the effects of sepsis,a one-hour bundle(H1B)management was combined with psychological intervention in patients with sepsis.METHODS This retrospective analysis included 300 patients with sepsis who were admitted to Henan Provincial People’s Hospital between June 2022 and June 2023.According to different intervention methods,the participants were divided into a simple group(SG,n=150)and combined group(CG,n=150).H1B management was used in the SG and H1B management combined with psychological intervention was used in the CG.The changes of negative emotion,sleep quality and post-traumatic growth and prognosis were compared between the two groups before(T0)and after(T1)intervention.RESULTS After intervention(T1),the scores of the Hamilton Anxiety scale and Hamilton Depression scale in the CG were significantly lower than those in the SG(P<0.001).Sleep time,sleep quality,sleep efficiency,daytime dysfunction,sleep disturbance dimension score,and the total score in the CG were significantly lower than those in the SG(P<0.001).The appreciation of life,mental changes,relationship with others,personal strength dimension score,and total score of the CG were significantly higher than those of the SG(P<0.001).The scores for mental health,general health status,physiological function,emotional function,physical pain,social function,energy,and physiological function in the CG were significantly higher than those in the SG(P<0.001).The mechanical ventilation time,intensive care unit stay time,and 28-d mortality of the CG were significantly lower than those of the SG(P<0.05).CONCLUSION H1B management combined with psychological intervention can effectively alleviate the negative emotions of patients with sepsis and increase their quality of sleep and life. 展开更多
关键词 Cluster management Psychological intervention SEPSIS negative emotions Sleep quality Post-traumatic growth
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Simulation research on surface growth process of positive and negative frequency detuning chromium atom lithographic gratings
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作者 尹志珺 唐朝辉 +9 位作者 谭文 肖光旭 姚玉林 薛栋柏 顾振杰 雷李华 顿雄 邓晓 程鑫彬 李同保 《Chinese Physics B》 SCIE EI CAS CSCD 2023年第10期367-376,共10页
Chromium atom photolithography gratings are a promising technology for the development of nanoscale length standard substances due to their high accuracy,uniformity,and consistency.However,the inherent difference betw... Chromium atom photolithography gratings are a promising technology for the development of nanoscale length standard substances due to their high accuracy,uniformity,and consistency.However,the inherent difference between the interaction of positive and negative frequency detuning standing wave field and the atoms can cause a difference in the adjacent peak-to-valley heights of the grating in positive and negative frequency detuning chromium atom lithography,which greatly reduces its accuracy.In this study,we performed a controlled variable growth simulation using the semi-classical theoretical model and Monte Carlo method with trajectory tracking and ballistic deposition methods to investigate the influence of key experimental parameters on the surface growth process of positive and negative frequency detuning atomic lithography gratings.We established a theoretical model based on simulation results and summarized empirical equations to guide the selection of experimental parameters.Our simulations achieved uniform positive and negative frequency detuning atomic lithography gratings with a period of 1/4 of the wavelength corresponding to the atomic transition frequency,and adjacent peak-to-valley heights differing by no more than 2 nm,providing an important theoretical reference for the controllable fabrication of these gratings. 展开更多
关键词 self-traceable grating atom lithography positive and negative frequency detuning surface growth
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Changes of Serum Insulin-like Growth Factor-2 Response to Negative Symptom Improvements in Schizophrenia Patients Treated with Atypical Antipsychotics 被引量:3
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作者 Xue-lin CHAO Shu-zhen JIANG +4 位作者 Jian-wen XIONG Jin-qiong ZHAN Bo WEI Chun-nuan CHEN Yuan-jian YANG 《Current Medical Science》 SCIE CAS 2020年第3期563-569,共7页
Accumulating evidence suggests that a disruption of early brain development,in which insulin-like growth factor-2(IGF-2)has a crucial role,may underlie the pathophysiology of schizophrenia.Our previous study has shown... Accumulating evidence suggests that a disruption of early brain development,in which insulin-like growth factor-2(IGF-2)has a crucial role,may underlie the pathophysiology of schizophrenia.Our previous study has shown that decreased serum IGF-2 was correlated with the severity of psychopathology in patients with schizophrenia.Here we conducted a prospective observation trial to investigate the effects of atypical antipsychotics on serum IGF-2 level and its relationship with clinical improvements in schizophrenia patients.Thirty-one schizophrenia patients with acute exacerbation and 30 healthy individuals were recruited in this study.Psychiatric symptoms were assessed using the Positive and Negative Syndrome Scale(PANSS)and serum IGF-2 levels were determined using ELISA.We found that schizophrenia patients with acute exacerbation had lower serum IGF-2 levels than control individuals at baseline(P<0.05).After 2 months of atypical antipsychotic treatment,a significant improvement in each PANSS subscore and total score was observed in patients(all P<0.01),and the serum IGF-2 levels of patients were significantly increased compared with those at baseline(203.13±64.62 vs.426.99±124.26 ng/mL;t=−5.044,P<0.001).Correlation analysis revealed that the changes of serum IGF-2 levels in patients were significantly correlated with the improvements of negative symptoms(r=−0.522,P=0.006).Collectively,our findings demonstrated changes of serum IGF-2 response to improvements of negative symptoms in schizophrenia patients treated with atypical antipsychotics,suggesting that serum IGF-2 might be a treatment biomarker for schizophrenia. 展开更多
关键词 SCHIZOPHRENIA atypical antipsychotic insulin-like growth factor-2 negative symptoms
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Short-Term Mindfulness Intervention on Adolescents’ Negative Emotion under Global Pandemic
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作者 Yue Yuan Aibao Zhou +3 位作者 Tinghao Tang Manying Kang Haiyan Zhao Zhi Wang 《International Journal of Mental Health Promotion》 2023年第4期563-577,共15页
Objective:In this research,we tried to explore how short-term mindfulness(STM)intervention affects adoles-cents’anxiety,depression,and negative and positive emotion during the COVID-19 pandemic.Design:10 classes were... Objective:In this research,we tried to explore how short-term mindfulness(STM)intervention affects adoles-cents’anxiety,depression,and negative and positive emotion during the COVID-19 pandemic.Design:10 classes were divided into experiment groups(5 classes;n=238)and control(5 classes;n=244)randomly.Hospital Anxi-ety and Depression Scale(HADS)and Positive and Negative Affect Schedule(PANAS)were used to measure par-ticipants’dependent variables.In the experiment group,we conducted STM practice interventions every morning in theirfirst class from March to November 2020.No interventions were conducted in the control group.Methods:Paired-sample t-tests were used to identify if a significant difference exists between every time point of the experimental and control groups.Repeated ANOVA and Growth Mixture Model(GMM)were used to analyze the tendency of positive and negative emotions,anxiety,and depression in the experimental group.Results and Conclusions:(1)With the intervention of STM,there was a significant decrease in negative emotions and an increase in positive emotions in the experimental group,whereas there were non-significant differences in the control group.(2)To explore the heterogeneity trajectories of dependent variables,we built a GMM and found there were two latent growth classes in the trajectories.(3)The results of the models showed their trajec-tories were downward,which meant that the levels of anxiety,depression,and negative emotions of participants decreased during the STM training period.Nonetheless,the score of positive affect showed upward in three loops of intervention,which indicated that the level of the participants’positive affect increased through the STM inter-vention.(4)This research indicated that STM should be given increasing consideration to enhance mental health during the worldwide outbreak of COVID-19. 展开更多
关键词 negative and positive emotional anxiety depression short-term mindfulness randomized controlled trial growth mixture model global pandemic of each of the two class groups illustrated in Fig.4B which showed obvious differences between the two class groups.
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The43,000Growth - associated Protein Functions as a Negative Growth Regulator in Glioma. 被引量:1
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作者 Huang ZY Wu Y +1 位作者 Burke SP Gutmann DH 《中国神经肿瘤杂志》 2003年第2期97-97,共1页
Previous molecular analyses of human astrocytomas have identified many genetic changes associated with astrocy-toma formation and progression.In an effort to identify novel gene expression changes associated with astr... Previous molecular analyses of human astrocytomas have identified many genetic changes associated with astrocy-toma formation and progression.In an effort to identify novel gene expression changes associated with astrocytomaformation,which might reveal new potential targets for glioma therapeutic drug design,we used the B8-RAS-transgenic mouse astrocytoma model.Using multiplex gene expression profiling,we found that 展开更多
关键词 in associated Protein Functions as a negative growth Regulator in Glioma The43 000growth
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The Negative Growth of Processing Trade Continued
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《China's Foreign Trade》 2015年第5期26-27,共2页
China’s foreign trade from January to August According to Customs figures,China’s total import and export in August reached 2.04 trillion yuan,down 9.7%year on year(the same below).Export was 1.2 trillion yuan,down ... China’s foreign trade from January to August According to Customs figures,China’s total import and export in August reached 2.04 trillion yuan,down 9.7%year on year(the same below).Export was 1.2 trillion yuan,down 6.1%,and import 0.84 trillion yuan,down 14.3%.Trade surplus was 368 billion yuan,an increase of 20.1%.In terms of the U.S.dollar,the total import and export in August reached US$333.5 billion, 展开更多
关键词 DOWN US The negative growth of Processing Trade Continued
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Biomarkers in triple negative breast cancer:A review 被引量:14
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作者 Budhi S Yadav Priyanka Chanana Swaty Jhamb 《World Journal of Clinical Oncology》 CAS 2015年第6期252-263,共12页
Breast cancer is an intrinsically heterogeneous disease. In the world about 1 million cases of breast cancer are diagnosed annually and more than 170000 are triplenegative. Characteristic feature of triple negative br... Breast cancer is an intrinsically heterogeneous disease. In the world about 1 million cases of breast cancer are diagnosed annually and more than 170000 are triplenegative. Characteristic feature of triple negative breast cancer(TNBC) is that it lacks expression of oestrogen,progesterone and human epidermal growth factor receptor-2/neu receptors. They comprise 15%-20% of all breast cancers. We did a systematic review of Pub Med and conference databases to identify studies published on biomarkers in TNBC. We included studies with biomarkers including: Epidermal growth factor receptor,vascular endothelial growth factor,c-Myc,C-kit and basal cytokeratins,Poly(ADP-ribose) polymerase-1,p53,tyrosinase kinases,m-TOR,heat and shock proteins and TOP-2A in TNBC. We also looked for studies published on synthetic lethality and inhibition of angiogenesis,growth,and survival pathways. TNBC is a complex disease subtype with many subclasses. Majority TNBC have a basal-like molecular phenotype by gene expression profiling. Their clinical and pathologic features overlap with hereditary BRCA1 related breast cancers. Management of these tumours is a challenge to the clinician because of its aggressive behaviour,poor outcome,and absence of targeted therapies. As the complexity of this disease is being simplified over time new targets are also being discovered for the treatment of this disease. There are many biomarkers in TNBC being used in clinical practice. Biomarkers may be useful as prognostic or predictive indicators as well as suggest possible targets for novel therapies. Many targeted agents are being studied for treatment of TNBC. 展开更多
关键词 Triple negative breast cancer EPIDERMAL growth FACTOR receptor VASCULAR ENDOTHELIAL growth FACTOR p53 CYCLIN
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DOG1 is useful for diagnosis of KIT-negative gastrointestinal stromal tumor of stomach 被引量:11
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作者 Takuya Wada Satoshi Tanabe +8 位作者 Kenji Ishido Katsuhiko Higuchi Tohru Sasaki Chikatoshi Katada Mizutomo Azuma Akira Naruke Myunguchul Kim Wasaburo Koizumi Tetsuo Mikami 《World Journal of Gastroenterology》 SCIE CAS 2013年第47期9133-9136,共4页
Approximately 80%-95%of gastrointestinal stromal tumors(GISTs)show positive staining for KIT,while the other 5%-20%show negative staining.If the tumor is negative for KIT,but is positive for CD34,a histological diagno... Approximately 80%-95%of gastrointestinal stromal tumors(GISTs)show positive staining for KIT,while the other 5%-20%show negative staining.If the tumor is negative for KIT,but is positive for CD34,a histological diagnosis is possible.However,if the tumor is negative for KIT,CD34,S-100,and SMA,a definitive diagnosis is often challenging.Recently,Discovered on GIST-1(DOG1)has received considerable attention as a useful molecule for the diagnosis of GIST.DOG1,a membrane channel protein,is known to be overexpressed in GIST.Because the sensitivity and specificity of DOG1 are higher than those of KIT,positive staining for DOG1has been reported,even in KIT-negative GISTs.KITnegative GISTs most commonly arise in the stomach and are mainly characterized by epithelioid features histologically.We describe our experience with a rare case of a KIT-negative GIST of the stomach that was diagnosed by positive immunohistochemical staining for DOG1 in a patient who presented with severe anemia.Our findings suggest that immunohistochemical staining for DOG1,in addition to gene analysis,is useful for the diagnosis of KIT-negative tumors that are suspected to be GISTs. 展开更多
关键词 KIT negative GASTROINTESTINAL STROMAL tumors Discovered on GASTROINTESTINAL STROMAL tumor-1 PLATELET-DERIVED growth factor receptor alpha
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MEROMORPHIC p-VALENT FUNCTION WITH FIXED SECOND NEGATIVE COEFFICIENTS
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作者 M.Darus 《Analysis in Theory and Applications》 2005年第2期132-142,共11页
In this paper we consider the class ∑^*(p,α,β,k,c) consisting of analytic functions with negativecoefficients and fixed second coefficient. The object of the present paper is to give coefficient estimates, conve... In this paper we consider the class ∑^*(p,α,β,k,c) consisting of analytic functions with negativecoefficients and fixed second coefficient. The object of the present paper is to give coefficient estimates, convex linear combinations, some distortion theorems and radii of starlikeness and convexity for f(z) in the class ∑^*(p,α,β,k,c) . 展开更多
关键词 analytic function meromorphic function negative coefficient fixed second negative coefficient growth and distortion theorem
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A candidate targeting molecule of insulin-like growth factor-Ⅰ receptor for gastrointestinal cancers 被引量:14
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作者 Yasushi Adachi Hiroyuki Yamamoto +4 位作者 Hirokazu Ohashi Takao Endo David P Carbone Kohzoh Imai Yasuhisa Shinomura 《World Journal of Gastroenterology》 SCIE CAS CSCD 2010年第46期5779-5789,共11页
Advances in molecular research in cancer have brought new therapeutic strategies into clinical usage.One new group of targets is tyrosine kinase receptors,which can be treated by several strategies,including small mol... Advances in molecular research in cancer have brought new therapeutic strategies into clinical usage.One new group of targets is tyrosine kinase receptors,which can be treated by several strategies,including small molecule tyrosine kinase inhibitors(TKIs) and monoclonal antibodies(mAbs).Aberrant activation of growth factors/receptors and their signal pathways are required for malignant transformation and progression in gastrointestinal(GI) carcinomas.The concept of targeting specif ic carcinogenic receptors has been validated by successful clinical application of many new drugs.Type I insulin-like growth factor(IGF) receptor(IGF-IR) signaling potently stimulates tumor progression and cellular differentiation,and is a promising new molecular target in human malignancies.In this review,we focus on this promising therapeutic target,IGF-IR.The IGF/IGF-IR axis is an important modifier of tumor cell proliferation,survival,growth,and treatment sensitivity in many malignant diseases,including human GI cancers.Preclinical studies demonstrated that downregulation of IGF-IR signals reversed the neoplastic phenotype and sensitized cells to anticancer treatments.These results were mainly obtained through our strategy of adenoviruses expressing dominant negative IGF-IR(IGF-IR/dn) against gastrointestinal cancers,including esophagus,stomach,colon,and pancreas.We also summarize a variety of strategies to interrupt the IGFs/IGF-IR axis and their preclinical experiences.Several mAbs and TKIs targeting IGF-IR have entered clinical trials,and early results have suggested that these agents have generally acceptable safety profiles as single agents.We summarize the advantages and disadvantages of each strategy and discuss the merits/demerits of dual targeting of IGF-IR and other growth factor receptors,including Her2 and the insulin receptor,as well as other alternatives and possible drug combinations.Thus,IGF-IR might be a candidate for a molecular therapeutic target in human GI carcinomas. 展开更多
关键词 DOMINANT negative GASTROINTESTINAL cancer Insulin like growth FACTOR-I RECEPTOR MONOCLONAL anti-body TYROSINE kinase inhibitor
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Immunostimulant nanomodulator boosts antitumor immune response in triple negative breast cancer by synergism of vessel normalization and photothermal therapy 被引量:1
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作者 Hao Jiang Yilang He +10 位作者 Jia Zhao Ruimin Chang Hailun He Tan Li Xingyu Zhang Bo Shu Wenxuan Zhang Huaiyu Wang Jing Liu Shubing Zhang Yuetao Zhao 《Nano Research》 SCIE EI CSCD 2023年第8期11149-11163,共15页
Tumor vascular dysfunction and immune suppression predict poor outcomes of tumor therapy.Combination of photothermal therapy(PTT)and vessel normalization with tumor immunotherapy is promising to augment antitumor bene... Tumor vascular dysfunction and immune suppression predict poor outcomes of tumor therapy.Combination of photothermal therapy(PTT)and vessel normalization with tumor immunotherapy is promising to augment antitumor benefit.Herein,we develop a potential immunostimulatory nanomodulator for treatment of triple-negative breast cancer(TNBC)treatment via synergism of PTT,vessel normalization,and priming of tumoral suppressive immune microenvironment by blocking transforming growth factor-β(TGF-β)pathway.The nanomodulator,namely Vac@Apt@BPs,is developed by conjugation of TGF-βinhibitor Vactosertib(Vac)and nucleolin-recognizing aptamer(Apt)on the surface of black phosphorus nanoparticles(BPs).Vac@Apt@BPs show good accumulation in TNBC via aptamer-induced active targeting of TNBC.Via the blockade of TGF-βsignaling,Vac@Apt@BPs effectively inhibit the formation of tumor neovascular,and normalize the vessels to recover vascular integrity and alleviate the hypoxia stress.Together with the tumor eradication and immunogenic cell death via PTT,robust immune response was boosted by promoted maturation of dendritic cells,suppression of regulatory T cells,and stimulation of effective T cells.This synergistic therapeutic strategy potentially suppresses the growth of TNBC in mice. 展开更多
关键词 vessel normalization photothermal therapy black phosphorus triple negative breast cancer transforming growth factor-β
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Targeted therapies in breast cancer:New challenges to fight against resistance 被引量:14
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作者 Viviana Masoud Gilles Pagès 《World Journal of Clinical Oncology》 CAS 2017年第2期120-134,共15页
Breast cancer is the most common type of cancer found in women and today represents a significant challenge to public health. With the latest breakthroughs in molecular biology and immunotherapy, very specific targete... Breast cancer is the most common type of cancer found in women and today represents a significant challenge to public health. With the latest breakthroughs in molecular biology and immunotherapy, very specific targeted therapies have been tailored to the specific pathophysiology of different types of breast cancers. These recent developments have contributed to a more efficient and specific treatment protocol in breast cancer patients. However, the main challenge to be further investigated still remains the emergence of therapeutic resistance mechanisms, which develop soon after the onset of therapy and need urgent attention and further elucidation. What are the recent emerging molecular resistance mechanisms in breast cancer targeted therapy and what are the best strategies to apply in order to circumvent this important obstacle? The main scope of this review is to provide a thorough update of recent developments in the field and discuss future prospects for preventing resistance mechanisms in the quest to increase overall survival of patients suffering from the disease. 展开更多
关键词 BREAST CANCERS RESISTANCE Human EPIDERMAL growth factor receptor 2 ANGIOGENESIS Triple negative Immune tolerance
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EGFR signaling promotes resistance to CHK1 inhibitor prexasertib in triple negative breast cancer 被引量:3
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作者 Kevin J.Lee Griffin Wright +3 位作者 Hannah Bryant Leigh Ann Wiggins Michele Schuler Natalie R.Gassman 《Cancer Drug Resistance》 2020年第4期980-991,共12页
Aim:Innate resistance to the CHK1 inhibitor prexasertib has been described,but resistance mechanisms are not understood.We aimed to determine the role epidermal growth factor receptor(EGFR)plays in innate resistance t... Aim:Innate resistance to the CHK1 inhibitor prexasertib has been described,but resistance mechanisms are not understood.We aimed to determine the role epidermal growth factor receptor(EGFR)plays in innate resistance to prexasertib in triple negative breast cancer(TNBC).Methods:Using a panel of pre-clinical TNBC cell lines,we measured the sensitivity to prexasertib.We examined the effect activation of EGFR had on prexasertib sensitivity.We measured the synergy of dual blockade of EGFR with erlotinib and CHK1 with prexasertib in TNBC cell lines and xenografts.Results:EGFR overexpression and activation increased resistance to CHK1 inhibition by prexasertib.EGFR promoted the phosphorylation of BCL2-associated agonist of cell death(BAD),inactivating its pro-apoptotic functions.Inhibition of EGFR reversed BAD phosphorylation,increasing sensitivity to prexasertib.Conclusion:The use of prexasertib as a monotherapy in TNBC has been limited due to modest clinical responses.We demonstrated that EGFR activation contributes to innate resistance to prexasertib in TNBC and potentially other cancers.EGFR expression status should be considered in clinical trials examining prexasertib’s use as a monotherapy or combination therapy. 展开更多
关键词 Triple negative breast cancer CHK1 REPLICATION APOPTOSIS drug resistance epidermal growth factor receptor mitogenic signaling
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Exponential Stabilization for C_0-Semigroups Under Compact Perturbation
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作者 刘立新 《Journal of Southwest Jiaotong University(English Edition)》 2008年第3期295-297,共3页
It is proved that a system under compact perturbation cannot be uniformly exponentially stable for an isometric C0-semigroup or a C0-group with polynomial growth for negative time in a Banach space. The results extend... It is proved that a system under compact perturbation cannot be uniformly exponentially stable for an isometric C0-semigroup or a C0-group with polynomial growth for negative time in a Banach space. The results extend and improve the corresponding results of previous literature. 展开更多
关键词 Compact perturbation Exponential stabilization Isometric C0-semigroup Polynomial growth for negative time
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EGFR signaling promotes resistance to CHK1 inhibitor prexasertib in triple negative breast cancer
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作者 Kevin J.Lee Griffin Wright +3 位作者 Hannah Bryant Leigh Ann Wiggins Michele Schuler Natalie R.Gassman 《Cancer Drug Resistance》 2021年第4期I0001-I0012,共12页
Aim:Innate resistance to the CHK1 inhibitor prexasertib has been described,but resistance mechanisms are not understood.We aimed to determine the role epidermal growth factor receptor(EGFR)plays in innate resistance t... Aim:Innate resistance to the CHK1 inhibitor prexasertib has been described,but resistance mechanisms are not understood.We aimed to determine the role epidermal growth factor receptor(EGFR)plays in innate resistance to prexasertib in triple negative breast cancer(TNBC).Methods:Using a panel of pre-clinical TNBC cell lines,we measured the sensitivity to prexasertib.We examined the effect activation of EGFR had on prexasertib sensitivity.We measured the synergy of dual blockade of EGFR with erlotinib and CHK1 with prexasertib in TNBC cell lines and xenografts.Results:EGFR overexpression and activation increased resistance to CHK1 inhibition by prexasertib.EGFR promoted the phosphorylation of BCL2-associated agonist of cell death(BAD),inactivating its pro-apoptotic functions.Inhibition of EGFR reversed BAD phosphorylation,increasing sensitivity to prexasertib.Conclusion:The use of prexasertib as a monotherapy in TNBC has been limited due to modest clinical responses.We demonstrated that EGFR activation contributes to innate resistance to prexasertib in TNBC and potentially other cancers.EGFR expression status should be considered in clinical trials examining prexasertib’s use as a monotherapy or combination therapy. 展开更多
关键词 Triple negative breast cancer CHK1 REPLICATION APOPTOSIS drug resistance epidermal growth factor receptor mitogenic signaling
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Voltage-controlled reverse filament growth boosts resistive switching memory 被引量:1
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作者 Attilio Belmonte Umberto Celano +8 位作者 Zhe Chen Janaki Radhaskrishnan' Augusto Redolfi Sergiu Clima Olivier Richard Hugo Bender Gouri Sankar Kar Wilfried Vandervorst Ludovic Goux 《Nano Research》 SCIE EI CAS CSCD 2018年第8期4017-4025,共9页
Nonvolatile memory devices based on filamentary resistance switching (KS) are among the frontrunners to fuel future devices and sensors of the internet of things (IoT) era. The capability of many two distinctive r... Nonvolatile memory devices based on filamentary resistance switching (KS) are among the frontrunners to fuel future devices and sensors of the internet of things (IoT) era. The capability of many two distinctive resistive states in response to an external electrical stimulus has been demonstrated. Through years of selection, cells based on the drift of metal ions, namely conductive-bridge memory devices, have shown a wide range of applications with nanosecond switching speeds, nanometer scalability, high-density, and low power-consumption. However, for low (sub-10-~A) current operation, a critical challenge is still represented by programming variability and by the stability of the conductive filament over time. Here, by introducing the concept of reverse filament growth (RFG), we managed to control the structural reconfiguration of the conductive filament inside a memory cell with significant enhancements of each of the aforementioned properties. A first-in-class Cu-based switching device is demonstrated, with a dedicated stack that enabled us to systematically trigger RFG, thus tuning the device's properties. Along with nanosecond switching speeds, we achieved an endurance of up to 106 cycles with a 102 read window, with outstanding disturb immunity and optimal stability of the filament over time. Furthermore, by tuning the filament's shape, an excellent control of multi-level bit operations was achieved. Thus, this device offers high flexibility in memory applications. 展开更多
关键词 filamentary resistiveswitching conductive bridge randomaccess memory (CBRA)VO conductive bridge negative set reverse filament growth
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Interfacial high-concentration electrolyte for stable lithium metal anode:Theory,design,and demonstration 被引量:1
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作者 Haotian Lu Chunpeng Yang +4 位作者 Feifei Wang Lu Wang Jinghong Zhou Wei Chen Quan-Hong Yang 《Nano Research》 SCIE EI CSCD 2023年第6期8321-8328,共8页
Lithium metal anodes hold great potential for high-energy-density secondary batteries.However,the uncontrollable lithium dendrite growth causes poor cycling efficiency and severe safety concerns,hindering lithium meta... Lithium metal anodes hold great potential for high-energy-density secondary batteries.However,the uncontrollable lithium dendrite growth causes poor cycling efficiency and severe safety concerns,hindering lithium metal anode from practical application.Electrolyte components play important roles in suppressing lithium dendrite growth and improving the electrochemical performance of long-life lithium metal anode,and it is still challenging to effectively compromise the advantages of the conventional electrolyte(1 mol·L^(−1)salts)and high-concentration electrolyte(>3 mol·L^(−1)salts)for the optimizing electrochemical performance.Herein,we propose and design an interfacial high-concentration electrolyte induced by the nitrogen-and oxygen-doped carbon nanosheets(NO-CNS)for stable Li metal anodes.The NO-CNS with abundant surface negative charges not only creates an interfacial high-concentration of lithium ions near the electrode surface to promote chargetransfer kinetics but also enables a high ionic conductivity in the bulk electrolyte to improve ionic mass-transfer.Benefitting from the interfacial high-concentration electrolyte,the NO-CNS@Ni foam host presents outstanding electrochemical cycling performances over 600 cycles at 1 mA·cm^(−2) and an improved cycling lifespan of 1,500 h for symmetric cells. 展开更多
关键词 lithium metal anode dendrite growth interfacial high-concentration electrolyte surface negative charge
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Mutual regulation between Hippo signaling and actin cytoskeleton 被引量:3
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作者 Yurika Matsui Zhi-Chun Lai 《Protein & Cell》 SCIE CSCD 2013年第12期904-910,共7页
Hippo signaling plays a crucial role in growth control and tumor suppression by regulating cell proliferation,apoptosis,and differentiation.How Hippo signaling is regulated has been under extensive investigation.Over ... Hippo signaling plays a crucial role in growth control and tumor suppression by regulating cell proliferation,apoptosis,and differentiation.How Hippo signaling is regulated has been under extensive investigation.Over the past three years,an increasing amount of data have supported a model of actin cytoskeleton blocking Hippo signaling activity to allow nuclear accumulation of a downstream effector,Yki/Yap/Taz.On the other hand,Hippo signaling negatively regulates actin cytoskeleton organization.This review p rovides insight on the mutual regulatory mechanisms between Hippo signaling and actin cytoskeleton for a tight control of cell behaviors during animal development,and points out outstanding questions for further investigations. 展开更多
关键词 Hippo signaling actin cytoskeleton negative feedback growth control DEVELOPMENT
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From the past to the future:what we learn from China’s 2020 Census
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作者 Zhenzhen Zheng 《China Population and Development Studies》 2021年第4期101-106,共6页
The population of China has entered an era of low fertility and aging,with a slower growth rate in the last decade.This commentary briefly reviews demographic changes in China in the last seven decades with some impor... The population of China has entered an era of low fertility and aging,with a slower growth rate in the last decade.This commentary briefly reviews demographic changes in China in the last seven decades with some important years of change in mortality,fertility and urbanization,and discusses future trends according to the information provided by the 2020 Census.China has experienced“compressed”population change,and population aging will continue to advance,meanwhile the size of the population is expected to reach its peak in the near future.To prepare proper response to the challenges proactively,institutional change which adapts to population changes is necessary. 展开更多
关键词 Population census Low fertility negative growth AGING China
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