Comparing to the conventional polyoxometalate(POM)-templated silver(Ag)clusters,asymmetrically covered POM-templated Ag clusters have been rarely reported.In this work,a new Ag cluster,H[Co(SiW_(11)O_(39))Co_(4)(OH)_(...Comparing to the conventional polyoxometalate(POM)-templated silver(Ag)clusters,asymmetrically covered POM-templated Ag clusters have been rarely reported.In this work,a new Ag cluster,H[Co(SiW_(11)O_(39))Co_(4)(OH)_(3)(NO_(3))_(2)(SiW_(9)O_(34))@Ag_(37)(^(t)BuC≡C)_(23)(NO_(3))_(2)(DMF)_(3)](Ag_(37)Co_(5)),has been successfully prepared using a facile solvothermal approach.Such a unique asymmetrical architecture is ascribed to the uneven charge distribution of the in situ generated[Co(SiW_(11)O_(39))]^(6-)and[Co_(4)(OH)_(3)(NO_(3))_(2)(SiW_(9)O_(34))]^(7-)moieties,leading to the asymmetrical coverage of alkynyl-protected Ag shell.Various physicochemical and catalytic studies revealed that the resulting solid-state Ag_(37)Co_(5) crystals exhibited interesting temperature-dependent photoluminescence property,efficient and recyclable photothermal conversion ability,and good catalytic activity towards the detoxication of 4-nitrophenol.展开更多
The benefits and popularity of minimally invasive surgery are undeniable around the globe.However,open surgery is necessary and learning open surgery skills is still a necessity.Open surgery allows for better exposure...The benefits and popularity of minimally invasive surgery are undeniable around the globe.However,open surgery is necessary and learning open surgery skills is still a necessity.Open surgery allows for better exposure to the surgical field and provides tactile sensation to facilitate the stereo visual assessment to precisely remove the lesion.Open surgery is still the key to surgical training,and the skills learned from open surgeries remain crucial for unforeseen circumstances and certain conditions like emergencies,challenge cases,or patients with compromised status.展开更多
To the Editor:Septate uterus is the most common congenital uterine malformation associated with an increased risk of miscarriage,preterm birth,and fetal malpresentation and reduced clinical pregnancy rates.The Europea...To the Editor:Septate uterus is the most common congenital uterine malformation associated with an increased risk of miscarriage,preterm birth,and fetal malpresentation and reduced clinical pregnancy rates.The European classification defines septate uterus as having an internal fundal indentation exceeding 50%of the uterine wall thickness and an external indentation less than 50%of the uterine wall thickness.展开更多
Accessory cavitated uterine malformation(ACUM)is a rare obstructive uterine anomaly that remains poorly understood,posing challenges for clinical management.The aetiopathogenesis is hypothesised to involve the duplica...Accessory cavitated uterine malformation(ACUM)is a rare obstructive uterine anomaly that remains poorly understood,posing challenges for clinical management.The aetiopathogenesis is hypothesised to involve the duplication and persistence of ductal Müllerian tissue usually near the round ligament attachment,potentially related to gubernaculum dysfunction.ACUM is specifically classified by Acién’s system,though rare variants necessitate continued international research to refine classification frameworks.展开更多
With the advancement of supply chain finance(SCF),supply chains have flourished,leading to the emergence of supply chains centered around other enterprises,such as retailers and logistics companies,challenging the tra...With the advancement of supply chain finance(SCF),supply chains have flourished,leading to the emergence of supply chains centered around other enterprises,such as retailers and logistics companies,challenging the traditional BLCTOP model that focuses solely on suppliers as the focal enterprise.We examine a model where the retailer is the focal enterprise.In our model,retailer defaults on payments trigger a price increase from the supplier as a countermeasure.We transform this scenario into a non-linear programming model and solve it using GAMS software.By using numerical simulations,we examine how varying parameters influence credit terms and profitability.展开更多
To the Editor:The septate uterus is the most common uterine anomaly and is associated with an increased risk of adverse reproductive outcomes.Transcervical resection of septum(TCRS)is widely performed in patients with...To the Editor:The septate uterus is the most common uterine anomaly and is associated with an increased risk of adverse reproductive outcomes.Transcervical resection of septum(TCRS)is widely performed in patients with adverse reproductive outcomes.The incidence of de novo intrauterine adhesions(IUAs)after TCRS is approximately 5%to 25%.[1]Various anti-adhesion methods are widely used in the clinical management of patients with septate uteri,including intrauterine devices,Foley balloons,estrogen,antibiotics,and hyaluronic acid gel.However,insufficient evidence supports or opposes any of these methods(Level C),[2]lacking high-grade evidence.展开更多
To the Editor:Septate uterus is a uterine malformation caused by abnormal resorption of the midline septum after fusion of the Müllerian ducts and it can be classified into the complete and incomplete septum.It a...To the Editor:Septate uterus is a uterine malformation caused by abnormal resorption of the midline septum after fusion of the Müllerian ducts and it can be classified into the complete and incomplete septum.It affects2%ofwomen of reproductive age,leading to poor fertility outcomes.[1]However,the adverse effects of this malformed uterine environment,especially the postmetroplasty uterine environment,on fetal development are unclear.展开更多
基金financially supported by the National Natural Science Foundation of China(Nos.21871025,21831001)the Recruitment Program of Global Experts(Young Talents)Beijing Institute of Technology(BIT)Excellent Young Scholars Research Fund.
文摘Comparing to the conventional polyoxometalate(POM)-templated silver(Ag)clusters,asymmetrically covered POM-templated Ag clusters have been rarely reported.In this work,a new Ag cluster,H[Co(SiW_(11)O_(39))Co_(4)(OH)_(3)(NO_(3))_(2)(SiW_(9)O_(34))@Ag_(37)(^(t)BuC≡C)_(23)(NO_(3))_(2)(DMF)_(3)](Ag_(37)Co_(5)),has been successfully prepared using a facile solvothermal approach.Such a unique asymmetrical architecture is ascribed to the uneven charge distribution of the in situ generated[Co(SiW_(11)O_(39))]^(6-)and[Co_(4)(OH)_(3)(NO_(3))_(2)(SiW_(9)O_(34))]^(7-)moieties,leading to the asymmetrical coverage of alkynyl-protected Ag shell.Various physicochemical and catalytic studies revealed that the resulting solid-state Ag_(37)Co_(5) crystals exhibited interesting temperature-dependent photoluminescence property,efficient and recyclable photothermal conversion ability,and good catalytic activity towards the detoxication of 4-nitrophenol.
文摘The benefits and popularity of minimally invasive surgery are undeniable around the globe.However,open surgery is necessary and learning open surgery skills is still a necessity.Open surgery allows for better exposure to the surgical field and provides tactile sensation to facilitate the stereo visual assessment to precisely remove the lesion.Open surgery is still the key to surgical training,and the skills learned from open surgeries remain crucial for unforeseen circumstances and certain conditions like emergencies,challenge cases,or patients with compromised status.
基金supported by grants from the National Key Research and Development Program of China(No.2021YFC2701405)the National Natural Science Foundation of China(Nos.82171614 and 82271656),Beijing Natural Science Foundation(No.7232125).
文摘To the Editor:Septate uterus is the most common congenital uterine malformation associated with an increased risk of miscarriage,preterm birth,and fetal malpresentation and reduced clinical pregnancy rates.The European classification defines septate uterus as having an internal fundal indentation exceeding 50%of the uterine wall thickness and an external indentation less than 50%of the uterine wall thickness.
基金This work was supported by grants from the National Key Clinical Specialty Construction Project(No.U114000)the National Natural Science Foundation of China(No.82271656).
文摘Accessory cavitated uterine malformation(ACUM)is a rare obstructive uterine anomaly that remains poorly understood,posing challenges for clinical management.The aetiopathogenesis is hypothesised to involve the duplication and persistence of ductal Müllerian tissue usually near the round ligament attachment,potentially related to gubernaculum dysfunction.ACUM is specifically classified by Acién’s system,though rare variants necessitate continued international research to refine classification frameworks.
基金he general project of Shandong Social Science Planning,"Research on Digital Transformation from the Perspective of Supply Chain to Boost Efficiency Improvement of Shandong Enterprises"[22CJJJ03]the national major project of Social Science,"Research on Dynamic。
文摘With the advancement of supply chain finance(SCF),supply chains have flourished,leading to the emergence of supply chains centered around other enterprises,such as retailers and logistics companies,challenging the traditional BLCTOP model that focuses solely on suppliers as the focal enterprise.We examine a model where the retailer is the focal enterprise.In our model,retailer defaults on payments trigger a price increase from the supplier as a countermeasure.We transform this scenario into a non-linear programming model and solve it using GAMS software.By using numerical simulations,we examine how varying parameters influence credit terms and profitability.
基金supported by a grant from the Non-profit Central Research Institute Fund of Chinese Academy of Medical Sciences(NO.2020-PT320-003)
文摘To the Editor:The septate uterus is the most common uterine anomaly and is associated with an increased risk of adverse reproductive outcomes.Transcervical resection of septum(TCRS)is widely performed in patients with adverse reproductive outcomes.The incidence of de novo intrauterine adhesions(IUAs)after TCRS is approximately 5%to 25%.[1]Various anti-adhesion methods are widely used in the clinical management of patients with septate uteri,including intrauterine devices,Foley balloons,estrogen,antibiotics,and hyaluronic acid gel.However,insufficient evidence supports or opposes any of these methods(Level C),[2]lacking high-grade evidence.
基金supported by a grant from the Non-profit Central Research Institute Fund of Chinese Academy of Medical Sciences(NO.2020-PT320-003)
文摘To the Editor:Septate uterus is a uterine malformation caused by abnormal resorption of the midline septum after fusion of the Müllerian ducts and it can be classified into the complete and incomplete septum.It affects2%ofwomen of reproductive age,leading to poor fertility outcomes.[1]However,the adverse effects of this malformed uterine environment,especially the postmetroplasty uterine environment,on fetal development are unclear.
