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Polymerization of 1,3-Butadiene with Catalysts Based on Cobalt Dichloride Complexes with Aminophosphines: Switching the Regioselectivity by Varying the MAO/Co Molar Ratio

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Chinese Journal of Polymer Science 2024年第4期42卷 501-510页

作者： Giovanni Ricci Anna Sommazzi francesco Masi Alessandra Forni CNR-Istituto di Scienze e Tecnologie Molecolari“Giulio Natta”(SCITEC) via A.Corti 1220133MilanoItaly Viale Giovanni XXIII 34 I-28100NovaraNOItaly Via Galvani 7 I-26866Sant’Angelo LodigianoLOItaly CNR-Istituto di Scienze e Tecnologie Molecolari“Giulio Natta”(SCITEC) via C.Golgi 1920133MilanoItaly

Several novel cobalt dichloride complexes with amino-phosphine bidentate ligands were synthesized and *** some of them single crystals were obtained and their molecular structure was determined by X-ray diffraction *** the complexes were then used in combination with MAO for the polymerization of 1,3-butadiene,obtaining polymers with different structures(i.e.,predominantly 1,2 or cis-1,4)mainly depending on the type of ligand and on the MAO/Co molar *** behavior of these novel catalysts was compared with that exhibited,in the polymerization of the same monomer,by the systems CoCl_(2)(PR3)2-MAO and CoCl_(2)(PRPh2)2-MAO(R=alkyl or cycloalkyl group),and by the systems based on cobalt dichloride complexes with various bi-and tridentate ligands(e.g.,diphosphines,bis-imines,pyridyl-imines,bis-iminopyridines).The comparison between the different systems allowed us to make some clarity about the actual and effective role played by the various types of ligands in the polymerization of conjugated dienes with catalytic systems CoCl_(2)(L)-MAO,in which L=mono-,bi-,or tri-dentate ligand.

关键词： 1,3-Butadiene Stereospecific polymerization Cobalt catalysts Regioselectivity Aminophosphine ligands Crystal structures Chelate rings

Suffocated shoots:Hypoxia-induced synthesis of salicylic acid inhibits plant regeneration

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Molecular Plant 2024年第4期17卷 528-530页

作者： Ximena Chirinos francesco Licausi Department of Biology University of OxfordSouth Parks RoadOxford OX13RBUK

Plant cells possess the unique ability to revert differentiated somatic cells back to a pluripotent state,a trait utilized in in vitro tissue *** plant propagation strategy involves the exogenous supplementation of auxin and cytokinin,two phytohormones that promote cellular reprogramming and de novo *** exposed to an auxin-rich medium,somatic cells proliferate and form the callus,a pluripotent cell *** the attainment of pluripotency,the callus can be transferred to a cytokinin-rich medium to induce shoot regeneration.

关键词： plant synthesis transferred

Impact of apolipoprotein E isoforms on sporadic Alzheimer's disease:beyond the role of amyloid beta

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Neural Regeneration Research 2024年第1期19卷 80-83页

作者： Madia Lozupone francesco Panza Neurodegenerative Disease Unit Department of Basic MedicineNeuroscienceand Sense OrgansUniversity of Bari Aldo MoroBariItaly Unit of Research Methodology and Data Sciences for Population Health National Institute of Gastroenterology“Saverio de Bellis”Research HospitalCastellana GrotteBariItaly

The impact of apolipoprotein E(ApoE)isoforms on sporadic Alzheimer's disease has long been studied;however,the influences of apolipoprotein E gene(APOE)on healthy and pathological human brains are not fully *** exists as three common isoforms(ApoE2,ApoE3,and ApoE4),which differ in two amino acid ***,ApoE binds cholesterol and phospholipids and ApoE isoforms display diffe rent affinities for their receptors,lipids transport and distribution in the brain and *** role of ApoE in the human depends on ApoE isoforms,brain regions,aging,and neural *** E4 is the strongest genetic risk factor for sporadic Alzheimer's disease,considering its role in influencing amyloid-beta *** exact mechanisms by which APOE gene variants may increase or decrease Alzheimer's disease risk are not fully understood,but APOE was also known to affect directly and indirectly tau-mediated neurodegeneration,lipids metabolism,neurovascular unit,and microglial *** with the biological function of ApoE,ApoE4 isoform significantly alte red signaling pathways associated with cholesterol homeostasis,transport,and ***,the rare protective APOE variants confirm that ApoE plays an important role in Alzheimer's disease *** objectives of the present mini-review were to describe classical and new roles of various ApoE isoforms in Alzheimer's disease pathophysiology beyond the deposition of amyloid-beta and to establish a functional link between APOE,brain function,and memory,from a molecular to a clinical *** genotype also exerted a heterogeneous effect on clinical Alzheimer's disease phenotype and its *** only in learning and memory but also in neuro psychiatric symptoms that occur in a premorbid *** rifying the relationships between Alzheimer's disease-related pathology with neuropsychiatric symptoms,particularly suicidal ideation in Alzheimer's disease patients,may be useful for elucid

关键词： Alzheimer's disease amyloid-beta apolipoprotein E dementia glymphatic transport lipids neuropsychiatric symptoms neurovascular unit tau protein

Pulsed electromagnetic field stimulation enhances neurite outgrowth in neural cells and modulates inflammation in macrophages

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Engineered Regeneration 2024年第1期5卷 80-91页

作者： francesco Fontana Andrea Cafarelli francesco Iacoponi Soria Gasparini Tiziano Pratellesi Abigail NKoppes Leonardo Ricotti The BioRobotics Institute Scuola Superiore Sant’Anna56127 PisaItaly Department of Excellence in Robotics&AI Scuola Superiore Sant’Anna56127 PisaItaly BAC Technology s.r.l. 50063 FlorenceItaly Department of Chemical Engineering Northeastern UniversityBostonMA 02115USA Department of Bioengineering Northeastern UniversityBostonMA 02115USA Department of Biology Northeastern UniversityBostonMA 02115USA

Nerve regeneration following traumas remains an unmet *** application of pulsed electromagnetic field(PEMF)stimulation has gained traction for a minimally invasive regeneration of ***,a sys-tematic exploration of different PEMF parameters influencing neuron function at a cellular level is not *** this study,we exposed neuroblastoma F11 cells to PEMF to trigger beneficial effects on neurite *** carrier frequencies,pulse repetition frequencies,and duty cycles were screened with a custom ad hoc setup to find the most influential parameters values.A carrier frequency of 13.5 MHz,a pulse repetition frequency of 20 Hz,and a duty cycle of 10%allowed maximal neurite outgrowth,with unaltered viability with respect to non-stimulated ***,in a longer-term analysis,such optimal conditions were also able to in-crease the gene expression of neuronal expression markers NeuN and Tuj-1 and transcription factor ***,the same optimal stimulation conditions were also applied to THP-1 macrophages,and both pro-inflammatory(TNF-𝛼,IL-1𝛽,IL-6,IL-8)and anti-inflammatory cytokines(IL-10,CD206)were *** optimal PEMF stimulation parameters did not induce differentiation towards an M1 macrophage phenotype,decreased IL-1𝛽and IL-8 gene expression,decreased TNF-𝛼and IL-8 cytokine release in M1-differentiated cells,increased IL-10 and CD206 gene expression,as well as IL-10 cytokine release in M0 *** specific PEMF stimulation regime,which is optimal in vitro,might have a high potential for a future in vivo translation targeting neural regeneration and anti-inflammatory action for treating peripheral nerve injuries.

关键词： Nerve regeneration Biophysical stimulation Pulsed electromagnetic fields(PEMF) Neurite outgrowth Anti-inflammatory Peripheral nerve injuries

Primary lymphomas of the genitourinary tract:A population-based study

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Asian Journal of Urology 2020年第4期7卷 332-339页

作者： Carlotta Palumbo Elio Mazzone francesco A.Mistretta Sophie Knipper Zhe Tian Paul Perrotte francesco montorsi Shahrokh F.Shariat Fred Saad Claudio Simeone Alberto Briganti Alessandro Antonelli Pierre I.Karakiewicz Cancer Prognostics and Health Outcomes Unit University of Montreal Health CenterMontrealQuebecCanada Urology Unit ASST Spedali Civili of BresciaDepartment of Medical and Surgical SpecialtiesRadiological Science and Public HealthUniversity of BresciaBresciaItaly Division of Experimental Oncology Unit of UrologyUrological Research Institute(URI)IRCCS San Raffaele Scientific InstituteMilanItaly Vita-Salute San Raffaele University MilanItaly Department of Urology European Institute of OncologyMilanItaly Martini Klinik University Medical Center Hamburg-EppendorfHamburgGermany Division of Urology University of Montreal Hospital Center(CHUM)MontrealQuebecCanada Department of Urology Comprehensive Cancer CenterMedical University of ViennaViennaAustria Department of Urology Weill Cornell Medical CollegeNew YorkNYUSA Department of Urology University of Texas SouthwesternDallasTXUSA Department of Urology Second Faculty of MedicineCharles UniversityPragCzech Republic Institute for Urology and Reproductive Health I.M.Sechenov First Moscow State Medical UniversityMoscowRussia

Objective:We performed a population-based analysis focusing on primary extranodal lymphoma of either testis,kidney,bladder or prostate(PGUL).Methods:We identified all cases of localized testis,renal,bladder and prostate primary lymphomas(PL)versus primary testis,kidney,bladder and prostate cancers within the Surveillance,Epidemiology,and End Results database(1998e2015).Estimated annual proportion change methodology(EAPC),multivariable logistic regression models,cumulative incidence plots and multivariable competing risks regression models were ***:The rates of testis-PL,renal-PL,bladder-PL and prostate-PL were 3.04%,0.22%,0.18%and 0.01%,*** with PGUL were older and more frequently *** rates significantly decreased for renal-PL(EAPC:5.6%;pZ0.004)and prostate-PL(EAPC:3.6%;pZ0.03).In multivariable logistic regression models,older ager independently predicted testis-PL(odds ratio[OR]:16.4;p<0.001)and renal-PL(OR:3.5;p<0.001),while female gender independently predicted bladder-PL(OR:5.5;p<0.001).In surgically treated patients,cumulative incidence plots showed significantly higher 10-year cancer-specific mortality(CSM)rates for testis-PL,renal-PL and prostate-PL versus their primary genitourinary *** multivariable competing risks regression models,only testis-PL(hazard ratio[HR]:16.7;p<0.001)and renal-PL(HR:2.52;p<0.001)independently predicted higher CSM ***:PGUL rates are extremely low and on the decrease in kidney and prostate but stable in testis and *** to primary genitourinary tumors,PGUL are associated with worse CSM for testis-PL and renal-PL but not for bladder-PL and prostate-PL,even after adjustment for other-cause mortality.

关键词： Bladder lymphoma Genitourinary neoplasm Genitourinary Primary extranodal lymphoma Prostate lymphoma Renal lymphoma Testis lymphoma Survival

Deep Learning for Financial Time Series Prediction:A State-of-the-Art Review of Standalone and HybridModels

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Computer Modeling in Engineering & Sciences 2024年第4期139卷 187-224页

作者： Weisi Chen Walayat Hussain francesco Cauteruccio Xu Zhang School of Software Engineering Xiamen University of TechnologyXiamen361024China Peter Faber Business School Australian Catholic UniversityNorth Sydney2060Australia Department of Information Engineering Polytechnic University of MarcheAncona60121Italy

Financial time series prediction,whether for classification or regression,has been a heated research topic over the last *** traditional machine learning algorithms have experienced mediocre results,deep learning has largely contributed to the elevation of the prediction ***,the most up-to-date review of advanced machine learning techniques for financial time series prediction is still lacking,making it challenging for finance domain experts and relevant practitioners to determine which model potentially performs better,what techniques and components are involved,and how themodel can be designed and *** review article provides an overview of techniques,components and frameworks for financial time series prediction,with an emphasis on state-of-the-art deep learning models in the literature from2015 to 2023,including standalonemodels like convolutional neural networks(CNN)that are capable of extracting spatial dependencies within data,and long short-term memory(LSTM)that is designed for handling temporal dependencies;and hybrid models integrating CNN,LSTM,attention mechanism(AM)and other *** illustration and comparison purposes,models proposed in recent studies are mapped to relevant elements of a generalized framework comprised of input,output,feature extraction,prediction,and related *** the state-of-the-artmodels,hybrid models like CNNLSTMand CNN-LSTM-AM in general have been reported superior in performance to stand-alone models like the CNN-only *** remaining challenges have been discussed,including non-friendliness for finance domain experts,delayed prediction,domain knowledge negligence,lack of standards,and inability of real-time and highfrequency *** principal contributions of this paper are to provide a one-stop guide for both academia and industry to review,compare and summarize technologies and recent advances in this area,to facilitate smooth and informed implementation,and t

关键词： Financial time series prediction convolutional neural network long short-term memory deep learning attention mechanism finance

Acute symptomatic seizures in newborns:a narrative review

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Acta Epileptologica 2024年第1期7卷 1-13页

作者： Carlotta Spagnoli francesco Pisani Child Neurology Unit Pediatric DepartmentAzienda USL-IRCCS Di Reggio EmiliaReggio Emilia42123Italy Child Neurology and Psychiatry Unit Department of Human NeurosciencesSapienza University of RomeRome00185Italy Azienda Ospedaliero Universitaria Policlinico Umberto I Rome00185Italy

Acute symptomatic seizures are the main sign of neurological dysfunction in *** is linked to the unique characteristics of the neonatal brain,making it hyperexcitable compared to older ages,and to the common occurrence of some forms of acquired brain injury,namely hypoxic-ischemic *** this narrative review we will provide an overview of neonatal seizures definition,their main underlying etiologies,diagnostic work-up and differential diagnoses,and will discuss about therapeutic options and prognostic *** latest publications from the ILAE Task Force on Neonatal Seizures will be presented and *** note,they highlight the current lack of robust evidence in this field of clinical *** will also report on specificities pertaining to low-and-middle income countries in terms of incidence,main etiologies and *** possibilities offered by telemedicine and automated seizures detection will also be summarized in order to provide a framework for future directions in seizures diagnosis and management with a global *** challenges and opportunities for improving identification,monitoring and treatment of acute symptomatic seizures in newborns *** current caveats potentially represent different lines of research with the aim to provide better care and reach a deeper understanding of this important topic of neonatal neurology.

关键词： Acute symptomatic Neonatal seizures EEG Newborn Outcome Diagnosis Etiologies

Testicular volume in infertile versus fertile white-European men: a case-control investigation in the real-life setting

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Asian Journal of Andrology 2021年第5期23卷 501-509页

作者： Luca Boeri Paolo Capogrosso Eugenio Ventimiglia Walter Cazzaniga Edoardo Pozzi Federico Belladelli Filippo Pederzoli Massimo Alfano Costantino Abbate Emanuele Montanari Luca Valsecchi Enrico Papaleo Paola Vigano Patrizia Rovere-Querini Suks Minhas francesco montorsi Andrea Salonia Division of Experimental Oncology/Unit of Urology URIIRCCS Ospedale San RaffaeleVia Olgettina 60Milan 20131Italy Department of Urology Foundation IRCCS Ca'Granda-Ospedale Maggiore PoliclinicoUniversity of MilanVia Della Commenda 15Milan 20122Italy University Vita-Salute San Raffaele Via Olgettina 60Milan 20131Italy Department of Obstetrics and Gynaecology IRCCS Ospedale San RaffaeleVia Olgettina 60Milan 20131Italy Division of Genetics and Cell Biology Reproductive Sciences LaboratoryIRCCS Ospedale San RaffaeleVia Olgettina 60Milan 20131Italy Division of Immunology Transplantation and Infectious Diseases Department of MedicineIRCCS Ospedale San RaffaeleVia Olgettina 60Milan 20131Italy Department of Urology Imperial Healthcare NHS TrustCharing Cross HospitalFulham Palace RoadHammersmithLondon W68RFUK

Testicular volume(TV)is considered a good clinical marker of hormonal and spermatogenic *** reference values for TV measures in infertile and fertile men are *** aimed to assess references values for TV in white-European infertile men and fertile *** analyzed clinical and laboratory data from 1940(95.0%)infertile men and 102(5.0%)fertile *** were matched by age using propensity score *** was assessed using a Prader orchidometer(PO).Circulating hormones and semen parameters were investigated in every *** statistics,Spearman's correlation,and logistic regression models tested potential associations between PO-estimated TV values and clinical *** operating characteristic(ROC)curves were used to find TV value cutoffs for oligoasthenoteratozoospermia(OAT)and nonobstructive azoospermia(NOA)status in infertile *** median testicular volume was smaller in infertile than that of fertile men(15.0 ml vs 22.5 ml;P<0.001).TV positively correlated with total testosterone,sperm concentration,and progressive sperm motility(all P≤0.001)in infertile *** multivariable logistic regression analysis,infertile status(P<0.001)and the presence of left varicocele(P<0.001)were associated with TV<15 *** volume thresholds of 15 ml and 12 ml had a good predictive ability for detecting OAT and NOA status,*** conclusion,infertile men have smaller testicular volume than fertile *** positively correlated with total testosterone,sperm concentration,and progressive motility in infertile men,which was not the case in the age-matched fertile counterparts.

关键词： hypogonadism male infertility orchidometer Prader semen analysis testicular volume

Developmental toxicity assessment of neonicotinoids and organophosphate esters with a human embryonic stem cell-and metabolism-based fast-screening model

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Journal of Environmental Sciences 2024年第3期137卷 370-381页

作者： Shuxian Zhang Miaomiao Zhao Shichang Li Renjun Yang Nuoya Yin francesco Faiola State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China College of Resources and Environment University of Chinese Academy of SciencesBeijing 100049China

In recent years,neonicotinoids(NEOs)and organophosphate esters(OPEs)have been widely used as substitutes for traditional pesticides and brominated fame-retardants,*** studies have shown that those compounds can be frequently detected in environmental and human samples,are able to penetrate the placental barrier,and are toxic to ***,it is reasonable to speculate that NEOs and OPEs may have potential adverse effects in humans,especially during *** employed a human embryonic stem cell differentiation-and liver S9 fraction metabolism-based fast screening model to assess the potential embryonic toxicity of those two types of *** show that four NEO and five OPE prototypes targeted mostly ectoderm specification,as neural ectoderm and neural crest genes were down-regulated,and surface ectoderm and placode markers *** liver S9 fraction's treatment could generally reduce the effects of the chemicals,except in a few specific instances,indicating the liver may detoxify NEOs and *** findings suggest that NEOs and OPEs interfere with human early embryonic development.

关键词： Neonicotinoids Organophosphate esters Human embryonic stem cells Fast screening model Developmental toxicity