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Common microscopic origin of the phase transitions in Ta_(2)NiS_(5) and the excitonic insulator candidate Ta_(2)NiSe_(5)

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npj Computational Materials 2021年第1期7卷 1919-1932页

作者： Lukas Windgätter Malte Rösner Giacomo mazza Hannes Hübener Antoine Georges Andrew J.Millis Simone Latini Angel Rubio Max Planck Institute for the Structure and Dynamics of Matter Luruper Chaussee 14922761 HamburgGemany Radboud University Institute for Molecules and MaterialsHeijendaalseweg 1356525 AJ NijmegenNetherlands Department of Quantum Matter Physics University of GenevaQuai Ernest-Ansermet 241211 GenevaSwitzerland College de France 11 place Marcelin Berthelot75005 ParisFrance Center for Computational Quantum Physics Flatiron InstituteNew YorkNY 10010USA.CPHTCNRSEcole PolytechniqueIP Paris91128 PalaiseauFrance Department of Physics Columbia UniversityNew YorkNY 10027USA.Nano-Bio Spectroscopy Group Departamento de Fisica de Materiales Universidad del Pais Vasco20018 San SebastianSpain

The structural phase transition in Ta-NiSes has been envisioned as driven by the formation of an excitonic insulating ***,the role of structural and electronic instabilities on crystal symmetry breaking has yet to be ***,the phase transition in its complementary material Ta_(2)NiS_(5)does not show any experimental hints of an excitonic insulating *** present a microscopic investigation of the electronic and phononic effects involved in the structural phase transition in Ta_(2)NiSe_(5)and Ta-Niss using extensive first-principles *** both materials the crystal symmetries are broken by phonon instabilities,which in tum lead to changes in the electronic bandstructure also observed in the experiment.A total energy landscape analysis shows no tendency towards a purely electronic instability and we find that a sizeable lattice distortion is needed to open a *** conclude that an excitonic instability is not needed to explain the phase transition in both Ta_(2)NiSe_(5)and Ta_(2)NiS_(5).

关键词： phase structural transitions

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Convective drying of yellow discarded onion (Angaco INTA): Modelling of moisture loss kinetics and effect on phenolic compounds

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Information Processing in Agriculture 2020年第2期7卷 333-341页

作者： Marıa Celia Roman Maria Paula Fabani Lorena Celina Luna Gabriela Egly Feresin German mazza Rosa Rodriguez Instituto de Ingeniera Quımica-Grupo Vinculado al PROBIEN(CONICET-UNCo) Facultad de IngenierıaUniversidad Nacional de San JuanArgentina Instituto de Biotecnologıa Facultad de IngenierıaUniversidad Nacional de San JuanArgentina Instituto de Investigacio´n y Desarrollo en Ingenierıa de Procesos Biotecnologı´a y Energı´as AlternativasCONICET-Universidad Nacional del ComahueNeuquenArgentina

The Angaco INTA onion variety is the most cultivated and its production,mostly is destined for *** to their high-quality standards of these markets,many onions are *** drying process seems to be a promising solution that not only give added value to this product,but also extend shelf *** this work,the influence of convective drying process,at 60 and 70C,on the kinetic behavior,antioxidant activity,phenolic and flavonoid contents of discarded onion slices were *** that,the Angaco INTA onion is a variety genetically developed to have shorter cultivation times in this region;the phenolic compounds content in this onion variety,the drying kinetics and its influence on this content have never been *** this study,the phenolic compounds contributions to dehydrated product quality was evaluated,observing that the convective drying increased the total soluble phenolic and flavonoid contents and antioxidant properties for both temperatures,being highest at 70*** rehydration ratios were similar to the slices dried at 60 and 70*** models were used for describing the obtained drying curve equation of onion slices,being the Midilli’s model the one that presented the best ***’s model of water diffusion fitted all experimental data with acceptable correlation *** the achieved findings,70C is the optimum temperature to produce the dehydrated Angaco INTA onion.

关键词： Drying Antioxidant activity Phenolic content Kinetic model

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微波提取法对樱桃、猕猴桃和枸杞多糖特性的影响

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农业工程学报 2009年第10期25卷 355-360页

作者：范会平符锋 Giuseppe mazza 胡小松廖小军中国农业大学食品科学与营养工程学院农业部果蔬加工重点开放实验室果蔬加工教育部工程研究中心北京100083 河南省粮油饲料产品质量监督检验站郑州450008 Pacific Agri-Food Research Centre Agriculture and Agri-Food Canada

微波提取是近年来发展迅速的天然产物提取技术之一。为考察微波提取对多糖得率、结构及生物学功能的影响,论文采用微波功率1000W和提取温度140℃,以不同提取时间5,10和20min分别对樱桃、猕猴桃和枸杞中多糖进行提取。结果表明,微波提取... 详细信息

微波提取是近年来发展迅速的天然产物提取技术之一。为考察微波提取对多糖得率、结构及生物学功能的影响,论文采用微波功率1000W和提取温度140℃,以不同提取时间5,10和20min分别对樱桃、猕猴桃和枸杞中多糖进行提取。结果表明,微波提取多糖的得率、相对分子质量和抗氧化性低于传统提取方法,随着微波提取时间延长,多糖相对分子质量逐步降低,但多糖得率与抗氧化性无显著变化;微波提取得到的多糖在单糖组成上与传统提取方法有一定的差异。该研究结果对应用微波提取水果多糖条件的选择及多糖品质控制有一定的参考价值。

关键词：提取多糖分子质量微波装置单糖组成抗氧化性

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Apparent diffusion coefficient by diffusion-weighted magnetic resonance imaging as a sole biomarker for staging and prognosis of gastric cancer

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Chinese Journal of Cancer Research 2017年第2期29卷 118-126页

作者： Francesco Giganti Alessandro Ambrosi Damiano Chiari Elena Orsenigo Antonio Esposito Elena mazza Luca Albarello Carlo Staudacher Alessandro Del Maschio Francesco De Cobelli Department of Radiology and Experimental Imaging Center San Raffaele Scientific Institute Milan Italy Vita-Salute San Raffaele University Milan Italy Department of Surgery San Raffaele Scientific Institute Milan Italy Department of Oncology San Raffaele Scientific Institute Milan Italy Pathology Unit San Raffaele Scientific Institute Milan Italy

Objective： To investigate the role of apparent diffusion coefficient （ADC） from diffusion-weighted magnetic resonance imaging （DW-MRI） when applied to the 7th TNM classification in the staging and prognosis of gastric cancer （GC）. Methods： Between October 2009 and May 2014, a total of 89 patients with non-metastatic, biopsy proven GC underwent 1.5T DW-MRI, and then treated with radical surgery. Tumor ADC was measured retrospectively and compared with final histology following the 7th TNM staging （local invasion, nodal involvement and according to the different groups -- stage Ⅰ, Ⅱ and Ⅲ）. Kaplan-Meier curves were also generated. The follow-up period is updated to May 2016. Results： Median follow-up period was 33 months and 45/89 （51%） deaths from GC were observed. ADC was significantly different both for local invasion and nodal involvement （P〈0.001）. Considering final histology as the reference standard, a preoperative ADC cut-offof 1.80×10-3 mm^2/s could distinguish between stages I and Ⅱ and an ADC value of ≤1.36-10-3 mm^2/s was associated with stage Ⅲ（P〈0.001）. Kaplan-Meier curves demonstrated that the survival rates for the three prognostic groups were significantly different according to final histology and ADC cut-offs （P〈0.001）. Conclusions： ADC is different according to local invasion, nodal involvement and the 7th TNM stage groups for GC, representing a potential, additional prognostic biomarker. The addition of DW-MRI could aid in the staging and risk stratification of GC.

关键词： Apparent diffusion coefficient diffusion-weighted magnetic resonance imaging gastric cancer prognosis TNM staging

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Arthroscopic vs open ankle arthrodesis:A prospective case series with seven years follow-up

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World Journal of Orthopedics 2021年第12期12卷 1016-1025页

作者： Federico Morelli Giorgio Princi Matteo Romano Cantagalli Marco Rossini Ludovico Caperna Daniele mazza Andrea Ferretti Department of Trauma and Orthopaedics Sapienza University of RomeRoma 00189Italy

BACKGROUND The osteoarthritis of the ankle,although less common than other joints,is associated with severe functional *** options are ankle arthroscopic debridement,osteotomies,ankle arthrodesis and ankle *** arthroplasty is increasingly used thanks to the new implants design,but ankle arthrodesis still represents the most used technique and it can be performed arthroscopically or with an open *** To compare mid-term results of arthroscopic vs open ankle arthrodesis of patients affected by end-stage ankle *** This study enrolled 23 patients,which underwent ankle *** patients were divided into 2 groups:group A(open procedure;n=11)and group B(arthroscopic procedure,n=12),the two groups were homogeneous with regard to age and body mass index(P=0.347).The American Orthopaedic Foot and Ankle score(AOFAS),Freiburg Ankle score(FAS)and visual analogue scale for pain intensity were evaluated preoperatively,at six months and at final follow-up of 7.6 years in group A and 7.3 years in group B(P=0.364).RESULTS Patients in the arthroscopic group showed better results at six-month follow-up compared to the open group at the AOFAS(group A,62.2;group B,78.5;P0.05).Hospital stay was shorter in group B than in group A(P=0.001).More complications were reported in the open group than in the arthroscopic group(P=0.459).CONCLUSION The arthroscopic and the open arthrodesis are valid and safe options for the treatment of ankle arthritis on the basis of clinical outcomes at 7 years ***,the arthroscopic treatment shows faster improvement at six-month follow-up in comparison with the open group.

关键词： Ankle Osteoarthritis Arthrodesis Arthroscopy Arthroplasty Surgery

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Endoscopic ultrasound diagnostic gain over computed tomography and magnetic resonance cholang-iopancreatography in defining etiology of idiopathic acute pancreatitis

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World Journal of Gastrointestinal Endoscopy 2022年第6期14卷 376-386页

作者： Stefano mazza Biagio Elvo Clara Benedetta Conti Andrea Drago Maria Chiara Verga Sara Soro Annalisa De Silvestri Fabrizio Cereatti Roberto Grassia Gastroenterology and Digestive Endoscopy Unit ASST CremonaCremona 26100Italy Gastroenterology and Endoscopy Unit Federico Ⅱ UniversityNapoli 80131Italy Interventional Endoscopy Unit ASST MonzaMonza 20900Italy Biometry and Clinical Epidemiology Scientific DirectionIRCCS San Matteo Hospital FoundationPavia 27100Italy Department of Gastroenterology and Digestive Endoscopy Castelli HospitalAriccia(Rm)00040Italy

BACKGROUND About 10%-30%of acute pancreatitis remain idiopathic(IAP)even after clinical and imaging tests,including abdominal ultrasound(US),contrast-enhanced computed tomography(CECT)and magnetic resonance cholangiopancreatography(MRCP).This is a relevant issue,as up to 20%of patients with IAP have recurrent episodes and 26%of them develop chronic *** data are available on the role of EUS in clarifying the etiology of IAP after failure of one or more cross-sectional *** To evaluate the diagnostic gain after failure of one or more previous crosssectional *** We retrospectively collected data about consecutive patients with AP and at least one negative test between US,CECT and MRCP,who underwent linear EUS between January 2017 and December *** investigated the EUS diagnostic yield and the EUS diagnostic gain over different combinations of these crosssectional imaging techniques for the etiologic diagnosis of *** and frequency of EUS diagnosis were also analyzed,and EUS diagnosis was compared with the clinical *** EUS,patients were followed-up for a median of 31.5 mo to detect cases of pancreatitis *** We enrolled 81 patients(63%males,mean age 61±18,23%with previous cholecystectomy,17%with recurrent pancreatitis).Overall EUS diagnostic yield for AP etiological diagnosis was 79%(20%lithiasis,31%acute on chronic pancreatitis,14%pancreatic solid or cystic lesions,5%pancreas divisum,5%autoimmune pancreatitis,5%ductal abnormalities),while 21%remained ***,CECT and MRCP,taken alone or in combination,led to AP etiological diagnosis in 16(20%)patients;among the remaining 65 patients,49(75%)obtained a diagnosis at EUS,with an overall EUS diagnostic gain of 61%.Sixty-eight patients had negative US;among them,EUS allowed etiological diagnosis in 59(87%).Sixty-three patients had a negative CECT;among them,47(74%)obtained diagnosis with ***-four had a negative MRCP;among them,20(83%)had EUS diag

关键词： Endoscopic ultrasound Idiopathic acute pancreatitis Diagnostic gain Computed tomography Magnetic resonance cholangiopancreatography

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Intimate partner violence:A loop of abuse,depression and victimization

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World Journal of Psychiatry 2021年第6期11卷 215-221页

作者： Marianna mazza Giuseppe Marano Angela Gonsalez del Castillo Daniela Chieffo Laura Monti Delfina Janiri Lorenzo Moccia Gabriele Sani Department of Neurosciences Section of PsychiatryFondazione Policlinico Universitario Agostino Gemelli IRCCSUniversitàCattolica del Sacro CuoreRome 00168Italy Service of Clinical Psychology Fondazione Policlinico Universitario Agostino Gemelli IRCCSUniversitàCattolica del Sacro CuoreRome 00168Italy

Intimate partner violence has been recognized as a serious public health *** to violence contributes to the genesis of,and exacerbates,mental health conditions,and existing mental health problems increase vulnerability to partner violence,a loop that imprisons victims and perpetuates the abuse.A recently described phenomenon is when male violence against females occurs within intimate relationships during youth,and it is termed adolescent or teen dating *** this narrative review,factors associated with intimate partner violence and consequences of exposure of children to parental domestic violence are discussed,along with possible intensification of violence against women with the spread of coronavirus disease 2019 pandemic and subsequent *** programs with a multicomponent approach involving many health care settings and research have a pivotal role in developing additional strategies for addressing violence and to provide tailored interventions to *** policy with a particular attention on healthy child and adolescent development is mandatory in the struggle against all forms of violence.

关键词： Intimate partner violence Women Depression Abuse COVID-19 Personalized medicine

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Liver-side of inflammatory bowel diseases:Hepatobiliary and druginduced disorders

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World Journal of Hepatology 2021年第12期13卷 1828-1849页

作者： Stefano mazza Sara Soro Maria Chiara Verga Biagio Elvo Francesca Ferretti Fabrizio Cereatti Andrea Drago Roberto Grassia Gastroenterology and Digestive Endoscopy Unit ASST CremonaCremona 26100Italy Gastroenterology Unit ASST Fatebenefratelli-SaccoDepartment of Biomedical and Clinical Sciences(DIBIC)Universitàdegli Studi di MilanoMilan 20157Italy

Hepatobiliary disorders are among the most common extraintestinal manifestations in inflammatory bowel diseases(IBD),both in Crohn’s disease and ulcerative colitis(UC),and therefore represent a diagnostic *** conditions include primary sclerosing cholangitis(PSC)as the main form,variant forms of PSC(namely small-duct PSC,PSC-autoimmune hepatitis overlap syndrome and IgG4-related sclerosing cholangitis)and granulomatous *** is by far the most common,presenting in up to 8%of IBD patients,more frequently in *** genetic foci have been identified,but environmental factors are preponderant on disease *** course of the two diseases is typically *** diagnosis is based mostly on typical radiological findings and exclusion of secondary *** of cholangiocarcinoma is significantly increased in PSC,as well as the risk of colorectal cancer in patients with PSC and IBD-related *** disease-modifying drugs are approved to ***,PSC management is directed against symptoms and complications and includes medical therapies for pruritus,endoscopic treatment of biliary stenosis and liver transplant for end-stage liver *** nonimmune-mediated hepatobiliary disorders are gallstone disease,whose incidence is higher in IBD and reported in up to one third of IBD patients,non-alcoholic fatty liver disease,pyogenic liver abscess and portal vein *** liver injury(DILI)is an important issue in IBD,since most IBD therapies may cause liver toxicity;however,the incidence of serious adverse events is *** and methotrexate are the most associated with DILI,while the risk related to anti-tumor necrosis factor-αand anti-integrins is *** on hepatotoxicity of newer drugs approved for IBD,like anti-interleukin 12/23 and tofacitinib,are still scarce,but the evidence from other rheumatic diseases is *** B reactivation during immunosuppressive therapy is a major

关键词： Inflammatory bowel diseases Hepatobiliary disorders Primary sclerosing cholangitis Drug-induced liver injury Biological drugs Viral hepatitis

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Assessment of clinical dehydration using point of care ultrasound for pediatric patients in rural Panama

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World Journal of Emergency Medicine 2019年第1期10卷 46-50页

作者： Genevieve mazza Carina Mireles Romo Marlene Torres Ali Duffens Annasha Vyas Katherine Moran Joshua Livingston Savannah Gonzales Shadi Lahham Inna Shniter Maxwell Thompson John Christian Fox School of Medicine University of California Irvine Department of Emergency Medicine University of California Irvine

BACKGROUND: Dehydration and its associated symptoms are among the most common chief complaints of children in rural Panama. Previous studies have shown that intravascular volume correlates to the ratio of the diameters of the inferior vena cava(IVC) to the aorta(Ao). Our study aims to determine if medical students can detect pediatric dehydration using ultrasound on patients in rural Panama. METHODS: This was a prospective, observational study conducted in the Bocas del Toro region of rural Panama. Children between the ages of 1 to 15 years presenting with diarrhea, vomiting, or parasitic infection were enrolled in the study. Ultrasound measurements of the diameters of the IVC and abdominal aorta were taken to assess for dehydration. RESULTS: A total of 59 patients were enrolled in this study. Twenty-four patients were clinically diagnosed with dehydration and 35 were classified to have normal hydration status. Of the 24 patients with dehydration, half(n=12) of these patients had an IVC/Ao ratio below the American threshold of 0.8. Of the remaining asymptomatic subjects, about half(n=18) of these subjects also had an IVC/Ao ratio below the American threshold of ***: Our study did not support previous literature showing that the IVC/Ao ratio is lower in children with dehydration. It is possible that the American standard for evaluating clinical dehydration is not compatible with the rural pediatric populations of Panama.

关键词：小学英语课外阅读阅读材料

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Feasibility study of minimally trained medical students using the Rural Obstetrical Ultrasound Triage Exam(ROUTE)in rural Panama

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World Journal of Emergency Medicine 2018年第3期9卷 216-222页

作者： Annasha Vyas Katherine Moran Joshua Livingston Savannah Gonzales Marlene Torres Ali Duffens Carina Mireles Romo Gnevieve mazza Briana Livingston Shadi Lahham John Christian Fox School of Medicine University of California IrvineIrvineCA 92697USA Department of Obstetrics and Gynecology University of California IrvineOrangeCA 92868USA Department of Emergency Medicine University of California IrvineOrangeCA 92868USA

BACKGROUND:Maternal and infant mortality rates reported in rural Panama are greater than those in urban *** del Toro is a region of Panama inhabited by indigenous people at greater risk for pregnancy-related complications and deaths due to geographic isolation and limited access to health *** ultrasound training programs have recently been implemented in low-resource settings to increase access to diagnostic *** goal of this study is to determine the feasibility of teaching firstyear medical students the Rural Obstetrical Ultrasound Triage Exam(ROUTE)to help identify pathology in pregnant women of the Bocas del Toro region of ***:Eight first-year medical students completed ROUTE training *** training,the students were compared to professional sonographers to evaluate their accuracy in performing the *** then performed the ROUTE in mobile clinics within Bocas del *** enrolled women pregnant in their 2nd or 3rd trimesters and measured biparietal diameter,head circumference,amniotic fluid index,fetal lie and placental *** abnormal measurement would be further analyzed by the lead physician for a potential hospital ***:A total of 60 women were enrolled in the *** women were detected as having a possible high-risk pregnancy and thus referred to a hospital for further ***:Based on our data,first-year medical students with additional training can use the ROUTE to identify complications in pregnancy using ultrasound in rural *** studies are required to determine the optimal amount of training required for proficiency.

关键词： Point of care ultrasound Ultrasound education Rural Panama Obstetrics ultrasound

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