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A novel 2D-GO@WS2 electrochemical platform for the determination of thiram fungicide

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Journal of Environmental Sciences 2024年第2期136卷 226-236页

作者： Khouloud Abid Daniela Iannazzo Consuelo Celesti Amani Khaskhoussi Antonino Foti Ramzi Maalej Pietro Giuseppe Gucciardi Giovanni neri Department of Engineering University of MessinaC.da Di DioI-98166 MessinaItaly INSTM Research Unity of MessinaItaly Laboratory of Dielectric and Photonic Materials Faculty of Sciences of SfaxSfaxUniversitySfax 3018Tunisia CNR IPCF Istituto per i Processi Chimico-Fisici viale F.Stagno D’Alcontres 37I-98156 MessinaItaly

In this paper,the determination of Thiram fungicide by a novel modified screen-printed carbon electrode(SPCE)fabricated modifying the working electrode(WE)with 2D-GO/WS2nanohybrid composites,is *** electron microscopy(SEM),Raman spectroscopy,and fluorescence analysis(PL)were used to reveal the morphological and microstructural characteristics of the 2D-GO/WS2 nanohybrids with different graphene oxide:tungsten disulphide(GO:WS_(2))*** characterization demonstrated that the 2D-WS2/GO nanohybrids having a GO:WS_(2)ratio=2:1 shows the highest electrocatalytic activity towards oxidation of *** developed sensor permits the quantification of Thiram in the linear range 0.083-0.33μM with a limit of detection(LOD)of 0.02μM,which is below the legal limits for this fungicide in drinking water or foods.

关键词： WS_(2)nanosheets Graphene Oxide(GO) Electrochemical sensor Fungicides Thiram

Actors of Psychoactive Drug Initiation among Adolescents in Yaoundé-Cameroon

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Open Journal of Pediatrics 2024年第2期14卷 246-254页

作者： Claude-Audrey Meguieze Atabe Ngwene neri Ngole Georges Eric Nseme Etouckey Paul Olivier Koki Ndombo Department of Pediatrics Faculty of Medicine and Biomedical Sciences University of Yaoundé I Yaoundé Cameroon Department of Morphologic Sciences Faculty of Medicine and Biomedical Sciences University of Yaoundé I Yaoundé Cameroon

Introduction: Actors of psychoactive drug initiation refer to those who introduce others to psychoactive drug use (initiators) and those who are introduced to psychoactive drugs (users). By identifying their features, better prevention and intervention programs can be developed to reduce psychoactive drug use among adolescents. This article describes the role of actors of psychoactive drug initiation among teenagers in secondary schools in Yaoundé (Cameroon). Methodology: A cross sectional study was carried out in twelve secondary schools in Yaoundé from October 2022 to May 2023. Adolescents from Form four to upper sixth, who assented to participate in the study and received parental consent were included. Data were collected in a structured self-reported questionnaire and analyzed using SPSS 23. Quantitative variables were expressed using means, standard deviations, median and interquartile ranges depending on the distribution of data. Qualitative variables were expressed in the form of frequency and percentages. Results: Drug use was more prevalent among male adolescents (55.3%) from nuclear families (91.4%) who received relatively high pocket money. The main sources of drug exposure were non-family members (49.7%), especially friends outside school. The most frequent place of initiation was snack bars (33.1%). Conclusion: The study revealed the importance of the family, friends and leisure places in the initiation process of drug use in teenagers. Based on these results, parents and school authorities should work together to create a safe and supportive environment that fosters communication, education to prevent drug abuse among adolescents in Yaoundé.

关键词： Initiators Drug Users Adolescents Cameroon

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南头古城有熊酒店

建筑学报 2024年第7期 76-81页

作者：无郭锡恩胡如珊如恩设计研究室不详

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南头古城有熊酒店:与不和谐共存

建筑学报 2024年第7期 82-85页

作者：郭锡恩李畯雯(译) 如恩设计研究室上海200040 清华大学建筑学院北京100084

“城中村”是指前工业时代遗留的聚居点被包夹在现代大都市中的一种现象。有人认为城中村是脏乱差的贫民窟,但也有人将其视为充满活力和创意的世外桃源。如恩的适应性再利用项目坐落于南头古城中,这座如今是11间客房的酒店(图1),其原有... 详细信息

“城中村”是指前工业时代遗留的聚居点被包夹在现代大都市中的一种现象。有人认为城中村是脏乱差的贫民窟,但也有人将其视为充满活力和创意的世外桃源。如恩的适应性再利用项目坐落于南头古城中,这座如今是11间客房的酒店(图1),其原有建筑正是城中村建筑的典例(图2~4)。

关键词：原有建筑现代大都市适应性再利用南头古城贫民窟酒店聚居点世外桃源

Patterns of species richness and beta diversity of vascular plants along elevation gradient in Brazilian páramo

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山地科学学报(英文) 2023年第7期20卷 1911-1920页

作者： CORDEIRO Anais de Almeida Campos KLANDERUD Kari VILLA Pedro Manuel neri Andreza Viana Federal University of Viçosa Department of Plant BiologyLaboratory of Ecology and Evolution of PlantsCampus Viçosa36570-900Viçosa-MGBrazil Faculty of Environmental Sciences and Natural Resource Management Norwegian University of Life SciencesP.O.Box 5003N-1432ÅsNorway Biodiversity Conservation Association 7101Puerto AyacuchoEstado AmazonasVenezuela

Understanding the relationships between plant diversity and the environment is an important step towards conservation of species and *** this study,we hypothesize that community species richness decreases and species composition change along the elevation gradient,with a greater contribution of species turnover than nestedness to beta *** surveyed plant species in 300 plots(1 m×1 m)in four elevational bands(2100 m,2300m,2500 m,and 2700 m)in the CaparaóNational Park,Southeastern *** samples presented a great number of species(97 spp.,59 genera,27families),however,74%of the species were considered rare with their relative abundance being<1%.Among the four bands along the gradient,we detected two distinct communities with few species in *** transition between the two communities occurred at 2500 m,and this elevation band also had the highest species richness in total.A non-metric multidimensional scaling(NMDS)showed floristic differences between the bands even though they had similar *** 89%of the plot pairs,using pairwise comparison of species composition,only half of the species that occurred in one did occur in the other *** dissimilarity among the plots and elevational band reflects a significant contribution of spatial species turnover to the species richness and beta diversity on the Caparaó*** diversity increased with spatial scale(from plot to elevational-band).The dissimilarity(βSOR=0.907)in the area was due almost exclusively to spatial species turnover(βSIM=0.879),with very low contribution of species nestedness(βSNE=0.028).Our research showed that species richness does not decrease with elevation in the study area,but the floristic composition *** clear distinction of species along the gradient show that spatial species turnover is the major diversitygenerating process in the studied area.

关键词： High altitude grassland Species turnover Partitioning diversity Campo de altitude Tropical mountains

Carbon concentrations and carbon storage capacity of three old-growth forests in the Sila National Park,Southern Italy

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Journal of Forestry Research 2023年第1期34卷 233-242页

作者： Giovanni Di Matteo Giuseppe Luzzi Antonio Basile Angelo Sposato Giada Bertini Ulderico neri Bruno Pennelli Rosario Napoli Pierfrancesco Nardi Consiglio per la ricerca e l’analisi dell’economia agraria Research Centre for Agriculture and Environment(CREA-AA)Via della Navicella 2-400184 RomeItaly Sila National Park Via NazionaleLorica Di San Giovanni in Fiore87055 CosenzaItaly Consiglio per la ricerca e l’analisi dell’economia agraria Research Centre for Forestry and Wood(CREA-FL)Viale Santa Margherita 8052100 ArezzoItaly

Old-growth forests play a key-role in reducing atmospheric carbon dioxide(CO_(2)) concentrations by storing large CO_(2)amounts in biomass and soil over *** quantifies the carbon pool into different forest compartments in three Mediterranean old-growth forests of Southern Italy populated by Pinus laricio,Fagus sylvatica and Abies *** carbon pools have been assessed per compartment,i.e.,living trees,dead wood,litterfall(foliar and woody),roots and 0-20 cm topsoil,combining the whole old-growth forest mass,(i.e.,using tree allometric relationships,deadwood factor conversions,root-to-shoot ratios,litterfall and soil samplings) by the respective organic carbon *** results show the considerable capacity of these forest ecosystems in storing CO_(2)in biomass and soil,with carbon pool values ranging from 532.2to 596.5 Mg C *** trees and 0-20 cm topsoil had larger carbon pool,contributing 53.0 and 22.1%,*** most cases,organic carbon concentration was higher(more than 60%) than the average carbon conversion rate of 50%,especially in living trees,deadwood,and woody *** study contributes further scientific evidence of the capacity of old-growth forests in storing CO_(2)in their different compartments,with special evidence on tree biomass,litterfall and mineral soil,thereby highlighting the key role of old-growth forests within the challenge of climate change mitigation.

关键词： Ecosystem carbon pool Organic carbon concentration Ecosystem compartment Climate change mitigation Carbon forestry

Charm mixing from BABAR

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Chinese Physics C 2008年第6期32卷 463-469页

作者： N.neri BABAR Collaboration Universitàdi Pisa and INFNL.Bruno Pontecorvo 356127 PisaItaly

We present recent results from BABAR experiment for D^0-D^0mixing measurements. Mixing parameters can be measured in different ways using different D^ decay modes, here we discuss the most sensitive analyses such as D^0→ K^＋π^- where we had the first evidence of charm mixing, the measurement of the ratio of lifetimes of the decays D^0→ K^K^ and D^0→π^＋π^- relative to D^0→ K^-π^＋, the time dependent Dalitz plot analysis of D^0→K^＋π^-π^0. New limits on CP-violating time-integrated asymmetries in Do→ K^＋K^- and D^0→π^＋π^- are also discussed. The analyses presented are based on 384 fb^-1 data collected with the BABAR detector at the PEP-II asymmetric B Factory.

关键词： charm mixing flavor oscillations D^0 mesons BABAR

Liver pathology in COVID-19 related death and leading role of autopsy in the pandemic

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World Journal of Gastroenterology 2023年第1期29卷 200-220页

作者： Martina Zanon Margherita neri Stefano Pizzolitto Davide Radaelli Monica Concato Michela Peruch Stefano D'Errico Department of Medical Surgical and Health Sciences University of TriesteTrieste 34149Italy Department of Medical Sciences University of FerraraFerrara 44121Italy Department of Pathology Santa Maria della Misericordia University HospitalUdine 33100Italy

BACKGROUND Information on liver involvement in patients with coronavirus disease 2019 is currently *** To highlight the pathological changes found during the autopsy of severe acute respiratory syndrome coronavirus 2 positive *** A systematic literature search on PubMed was carried out until June 21,*** A literature review reveals that pre-existing liver disease and elevation of liver enzyme in these patients are not common;liver enzyme elevations tend to be seen in those in critical *** the poor expression of viral receptors in the liver,it seems that the virus is able to infect this organ and therefore cause liver ***,to date,the search for the virus inside the liver is not frequent(16%of the cases)and only a small number show the presence of the *** most of the autopsy cases,macroscopic assessment is lacking,while microscopic evaluation of livers has revealed the frequent presence of congestion(42.7%)and steatosis(41.6%).Less frequent is the finding of hepatic inflammation or necrosis(19%)and portal inflammation(18%).The presence of microthrombi,frequently found in the lungs,is infrequent in the liver,with only 12%of cases presenting thrombotic formations within the vascular *** To date,the greatest problem in interpreting these modifications remains the association of the damage with the direct action of the virus,rather than with the inflammation or alterations induced by hypoxia and hypovolemia in patients undergoing oxygen therapy and decompensated patients.

关键词： Liver COVID-19 Autopsy Immunohistochemistry In situ hybridization Immunofluorescence

Can the computed tomography texture analysis of colorectal liver metastases predict the response to first-line cytotoxic chemotherapy?

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World Journal of Hepatology 2022年第1期14卷 244-259页

作者： Etienne Rabe Dania Cioni Laura Baglietto Marco Fornili Michela Gabelloni Emanuele neri Academic Radiology Master in Oncologic ImagingDepartment of Translational ResearchUniversity of PisaPisa 56126Italy Bay Radiology-Cancercare Oncology Centre Bay RadiologyPort Elizabeth 6001Eastern CapeSouth Africa Department of Clinical and Experimental Medicine University of PisaPisa 56126Italy

BACKGROUND Artificial intelligence in radiology has the potential to assist with the diagnosis,prognostication and therapeutic response prediction of various cancers.A few studies have reported that texture analysis can be helpful in predicting the response to chemotherapy for colorectal liver metastases,however,the results have *** metastases were not clearly excluded in these studies and in most studies the full range of texture analysis features were not *** study was designed to determine if the computed tomography(CT)texture analysis results of non-necrotic colorectal liver metastases differ from previous reports.A larger range of texture features were also evaluated to identify potential new *** To identify potential new imaging biomarkers with CT texture analysis which can predict the response to first-line cytotoxic chemotherapy in non-necrotic colorectal liver metastases(CRLMs).METHODS Patients who presented with CRLMs from 2012 to 2020 were retrospectively selected on the institutional radiology information system of our private radiology *** inclusion criteria were non-necrotic CRLMs with a minimum size of 10 mm(diagnosed on archived 1.25 mm portal venous phase CT(FOLFOX,FOLFIRI,FOLFOXIRI,CAPE-OX,CAPE-IRI or capecitabine).The final study cohort consisted of 29 *** treatment response of the CRLMs was classified according to the RECIST 1.1 *** means of CT texture analysis,various first and second order texture features were extracted from a single nonnecrotic target CRLM in each responding and non-responding *** between features and response to chemotherapy were assessed by logistic regression *** prognostic accuracy of selected features was evaluated by using the area under the *** There were 15 responders(partial response)and 14 non-responders(7 stable and 7 with progressive disease).The responders presented with a higher number of CRLMs(P=0.05).In univariable an

关键词： Colorectal cancer Liver metastases Radiomics Computed tomography texture analysis Response assessment