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Environmental factors determining growth of salamander larvae： A field study

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Current Zoology 2015年第3期61卷 421-427页

作者： Laura LIMONGI Gentile Francesco FICETOLA Giuseppe romeo Raoul MANENTI Dipartimento di Bioscienze Universita degli Studi di Milano Via Celoria 26 20133 Milano Italy Dipartimento di Scienze dell'Ambiente e del Territorio e di Scienze della Terra UniversitA degli Studi di Milano-Bicocca. Piaz- za della Scienza 1 20126 Milano Italy Laboratoire d'Ecologie Alpine (LECA) Universit6 Grenoble Alpes F-38000 Grenoble France CNRS LECA F-38000 Grenoble France

Larval growth and survival of organisms are strongly influenced by abiotic and biotic factors, as demonstrated by ex- perimental studies performed under controlled laboratory or semi-natural conditions. Even if they have many advantages, ex- periments cannot cover the full complexity of natural conditions and field studies are needed for a better understanding of how environmental variation determines growth and development rate. Fire salamander Salamandra salamandra females give birth to larvae in a variety of habitats, both epigean and subterranean. In caves, salamander larvae successfully grow and metamorphose, but their growth is more than three times longer than in epigean streams and factors determining these differences require inves- tigation. We performed a field study to understand the factors related to the growth of fire salamander larvae in different envi- ronmental conditions, evaluating the relationship between environmental features and larval growth and differences between caves and epigean spring habitats. Both caves and epigean larvae successfully grew. Capture-mark-recapture allowed to individu- ally track individuals along their whole development, and measure their performance. Growth rate was significantly affected by environmental variables： larvae grew faster in environments with abundant invertebrates and few conspeciflcs. Taking into ac- count the effect of environmental variables, larval growth was significantly lower in caves. Food availability plays a different ef- fect in the two environments. Larval growth was positively related to the availability of invertebrates in epigean sites only. The development rate of hypogeous populations of salamanders is slower because of multiple parameters, but biotic factors play a much stronger role than the abiotic ones

关键词： Spring Freshwater Cave Amphibians Salamandra Cannibalism

Conservative management of an early abdominal complication during a Tullio percutaneous endoscopic excision of renal pelvis urothelial carcinoma:A case report

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World Journal of Clinical Urology 2024年第1期13卷 1-6页

作者： Massimiliano Bernabei NicolòFabbri Danila romeo Elisa Paiolo Martina Bandi Maurizio Simone Department of Urology Azienda USL di FerraraFerrara 44100Italy Department of Surgery University of FerraraAzienda USL of FerraraAzienda USL of FerraraFerrara 44100FerraraItaly Local Health Agency of Ferrara Ferrara 44100Italy

BACKGROUND Upper tract urothelial carcinoma(UTUC)representing only a small fraction of all urothelial *** predominantly affects the renal pelvis in men,often coexisting with bladder *** displays a more aggressive genetic profile compared to bladder neoplasms,with the majority of patients presenting with advanced ***,about a quarter of UTUC cases exhibit high-grade subtypes,associated with a worse *** use and past exposure to aromatic amines are significant risk factors for *** modalities such as Uro-computed tomography and magnetic resonance imaging play crucial roles in *** is vital for direct visualization and biopsy sampling,but its limited sampling capacity presents challenges in determining tumor depth and ***,nephroureterectomy with bladder cuff excision has been the gold-standard treatment for *** conservative treatment has recently emerged as a viable option for selected patients,offering comparable oncological outcomes to radical *** access is also feasible for larger intrarenal *** SUMMARY We present a case of an 84-year-old woman who underwent percutaneous endoscopic excision of a renal pelvis neoplasm using the Tullio *** successful tumor removal,the patient experienced a postoperative complication with abdominal fluid *** management effectively resolved the *** the patient's age and refusal for radical surgery,the conservative approach proved to be a valid therapeutic *** Overall,UTUC remains a diagnostic and therapeutic challenge due to its ***,advances in endoscopic and percutaneous techniques provide valuable alternatives for selected patients,warranting further exploration in this evolving field.

关键词： Upper tract urothelial carcinoma Endoscopic treatment Damage management Case report

A Novel Staggered Semi-implicit Space-Time Discontinuous Galerkin Method for the Incompressible Navier-Stokes Equations

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Communications on Applied Mathematics and Computation 2021年第4期3卷 607-647页

作者： F.L.romeo M.Dumbser M.Tavelli Department of Civil Environmental and Mechanical EngineeringUniversity of TrentoVia Mesiano 7738123 TrentoItaly

A new high-order accurate staggered semi-implicit space-time discontinuous Galerkin(DG)method is presented for the simulation of viscous incompressible flows on unstructured triangular grids in two space *** staggered DG scheme defines the discrete pressure on the primal triangular mesh,while the discrete velocity is defined on a staggered edge-based dual quadrilateral *** this paper,a new pair of equal-order-interpolation velocity-pressure finite elements is *** the primary triangular mesh(the pressure elements),the basis functions are piecewise polynomials of degree N and are allowed to jump on the boundaries of each *** the dual mesh instead(the velocity elements),the basis functions consist in the union of piecewise polynomials of degree N on the two subtriangles that compose each quadrilateral and are allowed to jump only on the dual element boundaries,while they are continuous *** other words,the basis functions on the dual mesh arc built by continuous finite elements on the *** choice allows the construction of an efficient,quadrature-free and memory saving *** our coupled space-time pressure correction formulation for the incompressible Navier-Stokes equations,the arbitrary high order of accuracy in time is achieved through tire use of time-dependent test and basis functions,in combination with simple and efficient Picard *** numerical tests on classical benchmarks confirm that the proposed method outperforms existing staggered semi-implicit space-time DG schemes,not only from a computer memory point of view,but also concerning the computational time.

关键词： Incompressible Navier-Stokes equations Semi-implicit space-time discontinuous Galerkin schemes Staggered unstructured meshes Space-time pressure correction method High-order accuracy in space and time

Short-term effects of different fire severities on soil properties and Pinus halepensis regeneration

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Journal of Forestry Research 2020年第4期31卷 1271-1282页

作者： Federico romeo Pasquale A.Marziliano Maria Belén Turrión Adele Muscolo Department of Agraria Mediterranea UniversityFeo di Vito89122 Reggio CalabriaItaly

Considering that diverse fire severities can affect soil properties differently,the aim of this study was to examine to what extent changes in soil properties caused by fire could condition seedling *** new approach is for identifying a new fire cause-effect chain to qualify the impacts of fire on soils with the purpose of using fire as a tool in forest management to favour Pinus halepensis *** study area was a reforested *** area which had been crossed by fire for78.8 ha,causing various degrees of *** forest was subdivided into three large areas according to the gravity of crown scorch,[low(LS),medium(MS)and high(HS)severity],on the basis of needle yellowing which usually occurs after exposure to direct *** showed significant differences in soil properties with respect to fire *** the HS area,total nitrogen and carbon were considerably reduced while ash and phosphorus contents significantly *** changes in soil properties,in particular to nutrient levels,affected *** regeneration,mainly the first year after the *** regeneration occurred in areas affected by moderate fire severity in which the temperatures reached increased the mineralization of soil organic matter with the consequent release of nutrients available for seedling ***,moderate fire severity suppressed the regeneration of grasses,reducing the interspecific *** of seedlings were inversely proportional to the density of *** the number was abundant(LS),the height was modest;conversely,where the number was low(HS),the greater hypsometric differentiation of pine seedlings was *** results suggest that moderate fire severity represents an environmental stress(hormesis)altering microscale conditions to increase pine germination and *** exposure of *** to a moderate environmental factor that is damaging at higher intensities,induces an adaptive

关键词： Ecophysiology Fire severity Pinus halepensis Post-fire regeneration Soil chemical properties

Eltrombopag in chronic hepatitis C

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World Journal of Gastroenterology 2014年第35期20卷 12517-12521页

作者： romeo-Gabriel Mih?il? Remus-C?lin Cip?ian Faculty of Medicine "Lucian Blaga" University of Sibiu

Chronic hepatitis C is a public health problem ***,not all patients may benefit from antiviral therapy due to *** causes are represented by portal hypertension and platelet sequestration in the spleen,decreased serum levels or activity of thrombopoietin,the bone marrow suppression induced by hepatitis C virus and a possible adverse effect of *** receptor analogs may contribute to increase platelet counts in these *** binds to another region of the thrombopoietin receptor compared to endogenous thrombopoietin and stimulates the proliferation and maturation of megakaryocytes and the platelet production in a dose-dependent *** has proven its effectiveness for the treatment of patients with primary immune *** indication for other hemopathies or situations(like thrombocytopenia secondary to chemo- or radiotherapy,acute leukemia,myelodysplastic syndroms,acquired and hereditary bone marrow failure,and platelet donors) is under *** may be particularly useful in patients with advanced chronic hepatitis or liver cirrhosis who require antiviral *** present a minireview on the results of treatment with eltrombopag in patients chronically infected with hepatitis C virus,highlighting the benefits and mentioning possible adverse *** some studies eltrombopag increased the number of virological responses after clasical antiviral treatment of patients with chronic hepatitis C and reduced the transfusional requirements of those who had to be subjected to invasive *** is a solution for many of these patients,which allows them receiving antiviral therapy and sometimes getting a sustained virological response,but they must be well monitored to prevent possible thromboembolic or bone marrow complications or liver failure occurrence.

关键词： Eltrombopag Chronic hepatitis C Hepatitis C virus Platelets Thrombocytopenia

Analysis of The Impact of Microfinance on The Economic Development of CEMAC States

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Analysis of The Impact of Microfinance on The Economic Devel...

作者： NDEBISSA KORMOUGUE romeo Boris 河北大学

学位级别：硕士

Financial system has a positive impact on economic development of countries. Thus the main objective of this paper is to stress the role of financial system on economic development of Economic and Monetary Community of Central Africa, EMCCA(Communauté Economique Monétaire de l'Afrique Centrale, CEMAC) countries, mainly the role of MFIs through savings mobilization function and micro credits. To achieve this goal, we have considered that financial system consists of banking system and microfinance *** financial system of CEMAC is dominated by the formal financial system, namely the banking system. During the period before independence, the authorities have carried out the nationalization of financial institutions inherited from colonization and the establishment of new banks. They maintained control over interest rates to minimize the cost of credit to public enterprises and certain priority areas. However, the intervention of the authorities did not give good results. This led CEMAC to liberalize its financial system for the purpose of enhancing the mobilization of savings and reallocation of resources to boast economic development and microfinance *** analysis revealed that the restructuring of the banking sector has enabled banks in CEMAC countries to have excess liquidity and favor the growth of microfinance institutions(MFIs). However banks contribution to the financing of economic activities remain limited, thus MFIs have increase their activities and contribute to the financing of poor population mainly from rural areas where banks are absents. The study made some recommendations mainly the development of banking system and the improvement of microfinance services to sustain economic development in CEMAC in general and in Central African Republic in particular.

关键词： Financial System CEMAC Central African Republic Economic development

Short-term changes in soil properties after prescribed fire and mulching with fern in Mediterranean forests

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Journal of Forestry Research 2022年第4期33卷 1271-1289页

作者： Bruno Gianmarco Carra Giuseppe Bombino Manuel Esteban Lucas-Borja Adele Muscolo Federico romeo Demetrio Antonio Zema AGRARIA Department Mediterranean University of Reggio CalabriaLoc.Feo di Vito89122 Reggio CalabriaItaly Department of Agroforestry Technology and Science and Genetics School of Advanced Agricultural and Forestry EngineeringThe University of Castilla-La ManchaCampus Universitario s/n02071 AlbaceteSpain

Prescribed fire,although having low intensity and being able to reduce the risk of wildfire may modify soil properties in the short term,with possible increases in runoffand erosion *** mulching with vegetation residues is one of the most common post-fire management *** of fern,which is abundant on the Mediterranean forest floor,may be used to replace straw for mulching fireaffected ***,the effects of prescribed fires are not completely understood,and there is no data regarding the use of fern to protect soil after fire in the *** fill this gap,selected soil chemical parameters were analyzed,on a comparative basis,in three Mediterranean forests(pine,oak and chestnut)in Calabria(Southern Italy).These parameters were measured immediately and one year after fire in unburned,burned and not treated,and burned and mulched *** in soil chemical properties among the different treatments were significant,and the effects of the prescribed fire and mulching were dependent on the time elapsed from their application and forest *** general,mulching was not effective in limiting the changes in the monitored soil properties compared to the pre-fire *** forest species showed different temporal trends in changes of soil properties.

关键词： Organic matter Nutrients Macro-elements Vegetation cover Post-fire management

Complex relationships between physiological stress and endoparasite infections in natural populations

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Current Zoology 2020年第5期66卷 449-457页

作者： Claudia romeo Lucas A.WAUTERS Francesca Santicchia Ben DANTZER Rupert Palme Adriano Martinoli Nicola Ferrari Department of Veterinary Medicine Universita degli Stu di di MilanoVia Celoria 10Milano2133Italy bDepartment of Theoretical and Applied Sciences Environment Analysis and Management Unit-Guido Tosi Research Group-Universita degli Studi delKInsubriaVia J.H.Dunant 3Varese21100Italy Department of Biology Evolutionary Ecology GroupUniversity of AntwerpUniversiteitsplein 1Wilrijk2610Belgium Department of Psychology University of Michigan530 Church StreetAnn ArborMl48109USA Department of Ecology and Evolutionary Biology University of Michigan830 North UniversityAnn ArborMl48109USA Unit of Physiology Pathophysiology and Experimental En docri no logyDepartment of Biomedical Scie ncesUniversity of Veterinary Medicine ViennaVeterinarplatz 1Vienna1210Austria Centro di Ricerca Coordinata Epidemiologia e Sorveglianza Molecolare delle Infezioni Universita degli Studi di MilanoMilanoItaly

Short-term elevation of glucocorticoids(GCs)is one of the major physiological mechanisms by which vertebrates cope with challenging environmental or social factors(stressors).However,when exposure to stressors occurs repeatedly or over a prolonged period of time,animals may experience chronic elevation of GCs,which reduces the immune response efficiency and can lead to higher intensity of parasitic ***,we used invasive gray squirrels Sciurus carolinensis in troduced in Norther n Italy and their 2 most prevale nt gastrointesti nal parasites,the n ematode Strongyloides robustus and coccidia of the genus Eimeria,as a model to investigate relati on ships among macroparasite infection and concentrations of fecal glucocorticoid metabolites(FGMs),an integrated measure of circulating *** results revealed an association of FGMs with infection by ***,but not with *** with higher FGMs appear to be responsible for the greatest *** egg shedding within gray squirrel populations,thus possibly acting as ***,FGMs were negatively associated with adult ***,suggesting that the abundance of adults of this nematode species does not induce elevation in FGMs,but is only affected by it through immun e-mediated effects on its fecun *** ally,the relati on ship betwee n ***(both eggs and adult parasites)and FGMs was not linear,suggesting that only high levels of physiological stress in fluence parasite inf *** fin dings highlight that the direction and magnitude of the stress-infection relationship may depend not only on the specific hostparasite system,but also on the different life stages of the same parasite.

关键词： fecal glucocorticoid metabolites invasive alien species parasites Sciurus carolinensis stress tree squirrel

Radiomics and machine learning applications in rectal cancer:Current update and future perspectives

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World Journal of Gastroenterology 2021年第32期27卷 5306-5321页

作者： Arnaldo Stanzione Francesco Verde Valeria romeo Francesca Boccadifuoco Pier Paolo Mainenti Simone Maurea Department of Advanced Biomedical Sciences University of Naples"Federico II"Naples 80131Italy Institute of Biostructures and Bioimaging National Council of ResearchNapoli 80131Italy

The high incidence of rectal cancer in both sexes makes it one of the most common tumors,with significant morbidity and mortality *** define the best treatment option and optimize patient outcome,several rectal cancer biological variables must be ***,medical imaging plays a crucial role in the characterization of this disease,and it often requires a multimodal *** resonance imaging is the first-choice imaging modality for local staging and restaging and can be used to detect high-risk prognostic *** tomography is widely adopted for the detection of distant ***,conventional imaging has recognized limitations,and many rectal cancer characteristics remain assessable only after surgery and histopathology *** is a growing interest in artificial intelligence applications in medicine,and imaging is by no means an *** introduction of radiomics,which allows the extraction of quantitative features that reflect tumor heterogeneity,allows the mining of data in medical images and paved the way for the identification of potential new imaging *** manage such a huge amount of data,the use of machine learning algorithms has been ***,without prior explicit programming,they can be employed to build prediction models to support clinical decision *** this review,current applications and future perspectives of artificial intelligence in medical imaging of rectal cancer are presented,with an imaging modality-based approach and a keen eye on unsolved *** results are promising,but the road ahead for translation in clinical practice is rather long.

关键词： Rectal cancer Radiomics Radiogenomics Artificial intelligence Machine learning Deep learning