检索结果-南通市图书馆

Regional economic assessment of a novel place-based model for sustainable food systems

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Geography and Sustainability 2024年第2期5卷 220-229页

作者： susanna Kujala Kari Koppelmäki University of Helsinki Ruralia InstituteKampusranta 9 C 60320SeinäjokiFinland University of Helsinki Ruralia InstituteLönnrotinkatu 750100MikkeliFinland Wageningen University&Research Farming Systems Ecology GroupDroevendaalsesteeg 16708PBWageningenThe Netherlands

Several actions from both the environmental and human viewpoints have already been made to meet the sustainability goals targeted at food ***,new place-based ideas to improve sustainability are *** symbiosis(AES),a novel food system model,is an example of a suggested system-level change to attain sustainability targets;it is a symbiosis of food production and processing using renewable energy that uses its own *** has already been found advantageous from the ecological and biophysical viewpoints,but a regional economic evaluation of the model is still ***,the aim of our paper is to assess the regional economic impact of a possible systemic change in the food system using the network of agroecological symbiosis(NAES)as an *** applied scenarios representing different ways of moving towards envisioned NAES models in Mäntsälä,Finland,and a computable general equilibrium model to evaluate the regional economic *** to our results,both regional economy and employment would increase,and the regional production base would diversify with NAES implementation applied to the region,but the extent of the benefits varies between *** scenario that includes change in both public and private food demand,production of bioenergy and utilization of by-products would cause the largest ***,realizing NAES requires investments that may influence the actual implementation of such ***,a change towards NAES can promote an economically and spatially just transition to sustainability,as NAES seems to be economically most beneficial for rural areas.

关键词： Sustainability Regional economy Localized food system Renewable energy Circularity

Frequentist and Bayesian Sample Size Determination for Single-Arm Clinical Trials Based on a Binary Response Variable: A Shiny App to Implement Exact Methods

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Statistics 2024年第1期14卷 90-105页

作者： susanna Gentile Valeria Sambucini Department of Statistical Sciences Sapienza University of Rome Rome Italy

Sample size determination typically relies on a power analysis based on a frequentist conditional approach. This latter can be seen as a particular case of the two-priors approach, which allows to build four distinct power functions to select the optimal sample size. We revise this approach when the focus is on testing a single binomial proportion. We consider exact methods and introduce a conservative criterion to account for the typical non-monotonic behavior of the power functions, when dealing with discrete data. The main purpose of this paper is to present a Shiny App providing a user-friendly, interactive tool to apply these criteria. The app also provides specific tools to elicit the analysis and the design prior distributions, which are the core of the two-priors approach.

关键词： Binomial Proportion Frequentist and Bayesian Power Functions Exact Sample Size Determination Shiny App Two-Priors Approach

SARS-CoV-2 Pooled Testing Methodology for PCR Testing Applied in Private Laboratory in Armenia

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Infectious Diseases 2024年第1期14卷 67-73页

作者： Inessa Nazaryan Narek Pepanyan Arshag Keshishyan susanna Petrosyan Naira Margaryan Shahane Mnatsakanyan EcoSence LLC Yerevan Armenia

Since the beginning of COVID-19 pandemics many countries were facing challenges with testing capacity recourse limitations. Throughout the waves of the pandemic countries were trying to address the existing constrains exploring solutions to increase the testing capacity with more cost-effective approaches. Pooled methodology was one of the methods which many have validated and used. It is evident that in case of pooled sample testing the sensitivity becomes lower, however the variation highly depends on the pool size as well as the incidence rate at the certain point. Armenia as well as many other countries has adopted regulations for mandatory COVID-19 PCR testing for all the travelers. Current study aimed to explore the efficiency of COVID-19 pooled PCR testing for nasopharyngeal swabs of individuals with no symptoms in a time period with good epidemiological state of the infection. Nasopharingeal swab samples from individuals were collected. The manual extraction of RNAs of samples was performed after pooling up to 5 samples. The pools with Cycle Threshold (CT) of < 37 were considered positive and were retested individually. In total 28,015 samples were grouped in 667 pools of which 57 were positive. The total number of positive samples was 65. The median difference (CT-pool–CT samples) was 2.4 (ranging from–3.0 to 8.9). The correlation of CT of pools and positive samples was positive. The correlation coefficient r = 0.84, P < 0.000, 95% CI range 0.7423 to 0.9243). The total economic saving when using pools compared to the individual testing was 72%. The minor difference between CT values of pools and samples can be explained by the dilution effect in the pool. However, the positive correlation between the values as well as the amount of cost saving demonstrate that pooling on nasopharyngeal samples for COVID-19 PCR testing can be a good method for efficient screening with significant resource saving. One of the most important advantages of the proposed method is

关键词： COVID-19 Screening Grouped Testing

Prognostic role of platelet-to-lymphocyte ratio and neutrophil-to-lymphocyte ratio in patients with non-metastatic and metastatic prostate cancer:A meta-analysis and systematic review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Journal of Urology 2024年第2期11卷 191-207页

作者： Stefano Salciccia Marco Frisenda Giulio Bevilacqua Pietro Viscuso Paolo Casale Ettore De Berardinis Giovanni Battista Di Pierro susanna Cattarino Gloria Giorgino Davide Rosati Francesco Del Giudice Alessandro Sciarra Gianna Mariotti Alessandro Gentilucci Department of Urology Sapienza Rome UniversityPoliclinico Umberto I00161 RomeItaly Department of Urology Humanitas20089 RozzanoMIItaly

Objective: To analyze data available in the literature regarding a possible prognostic value of the platelet-to-lymphocyte ratio (PLR) and neutrophil-to-lymphocyte ratio (NLR) in prostate cancer (PCa) patients stratified in non-metastatic and metastatic ***: A literature search process was performed following the Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines. In our meta-analysis, the pooled event rate estimated and the pooled hazard ratio were calculated using a random effect ***: Forty-two articles were selected for our analysis. The pooled risk difference for non-organ confined PCa between high and low NLR cases was 0.06 (95% confidence interval [CI]: −0.03-0.15) and between high and low PLR cases increased to 0.30 (95% CI: 0.16-0.43). In non-metastatic PCa cases, the pooled hazard ratio for overall mortality between high and low NLR was 1.33 (95% CI: 0.78-1.88) and between high and low PLR was 1.47 (95% CI: 0.91-2.03), whereas in metastatic PCa cases, between high and low NLR was 1.79 (95% CI: 1.44-2.13) and between high and low PLR was 1.05 (95% CI: 0.87-1.24).Conclusion: The prognostic values of NLR and PLR in terms of PCa characteristics and responses after treatment show a high level of heterogeneity of results among studies. These two ratios can represent the inflammatory and immunity status of the patient related to several conditions. A higher predictive value is related to a high NLR in terms of risk for overall mortality in metastatic PCa cases under systemic treatments.

关键词： Prostatic neoplasm Neutrophil-to-lymphocyte ratio Platelet-to-lymphocyteratio Meta-analysis Radical prostatectomy Metastatic

Identification of Pu and U isotopic composition and its applications in environmental and CBRN research

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Defence Technology（防务技术） 2021年第3期17卷 728-740页

作者： susanna Salminen-Paatero Paula Vanninen Jussi Paatero Department of Chemistry RadiochemistryP.O.Box 55FI-00014University of HelsinkiFinland VERIFIN-Finnish Institute for the Verification of the Chemical Weapons Convention Department of ChemistryP.O.Box 55FI-00014University of HelsinkiFinland Finnish Meteorological Institute Observation ServicesP.O.Box 503FI-00101HelsinkiFinland

This paper describes the most common presently used methods for detecting uranium and plutonium isotopes after their introduction to environment. Known isotope ratios of U and Pu in different nuclear events are important tool for characterizing the sources of nuclear material. Detection techniques both in field and in laboratory are presented, as well as different models that can be used for identifying the origin and age of the nuclear material. Identification of the source of nuclear material in environmental samples is needed for estimating the quality and quantity of the nuclear hazard. This information is essential in risk assessment and crisis management, in chemical, biological, radiological and nuclear(CBRN) research after e.g. a terrorist attack, in radioecology and environmental radioactivity research.

关键词： CBRN Nuclear contamination Plutonium isotope ratios Uranium isotope ratios Nuclear fingerprinting Nuclear particle

Insights from human sleep research on neural mechanisms of Alzheimer’s disease

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2020年第7期15卷 1251-1252页

作者： susanna Cordone Luigi De Gennaro Department of Psychology University of Rome"Sapienza"RomeItaly IRCCS Fondazione Santa Lucia RomeItaly

Alzheimer's disease(AD)is considered as the major cause of dementia and affects about 50 million people in world population,with an expected increase of 27%in the coming decades,as reported by the most recent AD *** fast-growing empirical evidence is highlighting the close relationship between sleep and AD since the preclinical stage of the disease,pointing to an important role of sleep in the occurrence and progression of AD.

关键词： sleep Alzheimer clinical

Adaptive link layer security architecture for telecommand communications in space networks

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Engineering and Electronics 2014年第3期25卷 357-372页

作者： Lei Zhang Chengjin An susanna Spinsante Chaojing Tang College of Electronic Science and Engineering National University of Defense Technology Department of Information Engineering Università Politecnica delle Marche

Impressive advances in space technology are enabling complex missions, with potentially significant and long term impacts on human life and activities. In the vision of future space exploration, communication links among planets, satel ites, spacecrafts and crewed vehicles wil be designed according to a new paradigm, known as the disruption tolerant networking. In this scenario, space channel peculiarities impose a massive reengineering of many of the protocols usually adopted in terrestrial networks; among them, security solutions are to be deeply reviewed, and tailored to the specific space requirements. Security is to be provided not only to the payload data exchanged on the network, but also to the telecommands sent to a spacecraft, along possibly differentiated paths. Starting from the secure space telecommand design developed by the Consultative Committee for Space Data Systems as a response to agency-based requirements, an adaptive link layer security architecture is proposed to address some of the chal enges for future space networks. Based on the analysis of the communication environment and the error diffusion properties of the authentication algorithms, a suitable mechanism is proposed to classify frame retransmission requests on the basis of the originating event （error or security attack） and reduce the impact of security operations. An adaptive algorithm to optimize the space control protocol, based on estimates of the time varying space channel, is also presented. The simulation results clearly demonstrate that the proposed architecture is feasible and efficient, especially when facing malicious attacks against frame transmission.

关键词： space network telecommand security adaptive estimate performance optimization misbehavior detection.

Amyotrophic lateral sclerosis disease burden:doing better at getting better

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2023年第8期18卷 1728-1729页

作者： Cinzia Volonté susanna Amadio National Research Council-Institute for Systems Analysis and Computer Science“Antonio Ruberti” Cellular Neurobiology UnitIRCCS Fondazione Santa LuciaRomeItaly Cellular Neurobiology Unit IRCCS Fondazione Santa LuciaRomeItaly

Amyotrophic lateral sclerosis(ALS)is classified as a multigenic,multifactorial,and heterogeneous neurodegenerative/neuroinflammatory disease that slays especially upper and lower motor neurons controlling voluntary muscle *** the insurgence that is characterized by typical symptoms such as weakness in the limbs and muscle twitches,the disease rapidly evolves into progressive muscle atrophy,paralysis,and lastly death occurring by respiratory failure usually within 2-4 years of diagnosis.

关键词： sclerosis paralysis respiratory

Associations of accelerometry-measured and self-reported physical activity and sedentary behavior with skeletal muscle energetics:The Study of Muscle,Mobility and Aging(SOMMA)

在线全文

学校读者我要写书评

暂无评论

Journal of Sport and Health Science 2024年第5期13卷 621-630页

作者： Yujia(susanna)Qiao Terri L.Blackwell Peggy M.Cawthon Paul M.Coen Steven R.Cummings Giovanna Distefano Samaneh Farsijani Daniel E.Forman Bret H.Goodpaster Stephen B.Kritchevsky Theresa Mau Frederico G.S.Toledo Anne B.Newman Nancy W.Glynn Department of Epidemiology School of Public HealthUniversity of PittsburghPittsburghPA 15261USA San Francisco Coordinating Center California Pacific Medical Center Research InstituteSan FranciscoCA 94143USA Department of Epidemiology and Biostatistics University of CaliforniaSan FranciscoCA 94143USA Translational Research Institute AdventHealthOrlandoFL 32804USA Department of Medicine(Geriatrics and Cardiology) University of Pittsburghand GeriatricsResearchEducationand Clinical Center(GRECC)VA Pittsburgh Healthcare SystemPittsburghPA 15261USA Department of Internal Medicine Section on Gerontology and Geriatric MedicineWake Forest School of MedicineWinston-SalemNC 27109USA Division of Endocrinology and Metabolism Department of MedicineUniversity of PittsburghPittsburghPA 15261USA

Background:Skeletal muscle energetics decline with age,and physical activity(PA)has been shown to offset these declines in older ***,many studies reporting these effects were based on self-reported PA or structured exercise ***,we examined the associations of accelerometry-measured and self-reported PA and sedentary behavior(SB)with skeletal muscle energetics and explored the extent to which PA and sedentary behavior would attenuate the associations of age with muscle ***:As part of the Study of Muscle,Mobility and Aging,enrolled older adults(n=879),810(age=76.4±5.0 years old,mean±SD;58%women)had maximal muscle oxidative capacity measured ex vivo via high-resolution re spirometry of permeabilized myofibers(maximal oxidative phosphorylation(maxOXPHOS))and in vivo by ^(31)phosphorus magnetic resonance spectroscopy(maximal adenosine triphosphate(ATP_(max))).Accelerometry-measured sedentary behavior,light activity,and moderate-to-vigorous PA(MVPA)were assessed using a wrist-worn ActiGraph GT9X over 7 ***-reported sedentary behavior,MVPA,and all PA were assessed with the Community Healthy Activities Model Program for Seniors(CHAMPS)*** regression models with progressive covariate adjustments evaluated the associations of sedentary behavior and PA with muscle energetics,as well as the attenuation of the age/muscle energetics association by MVP A and sedentary *** a sensitivity analysis,we also examined activPAL-measured daily step count and time spent in sedentary behavior and their associations with muscle ***:Every 30 min/day more of ActiGraph-measured MVPA was associated with 0.65 pmol/(s×mg)higher maxOXPHOS and 0.012 mM/s higher ATP_(max)after adjusting for age,site/technician,and sex(p<0.05).Light activity was not associated with maxOXPHOS or ATP_(max).Meanwhile,every 30 min/day spent in ActiGraph-measured sedentary behavior was associated with 0.39 pmol/s×mg lower maxOXPHOS and0.

关键词： Aging Exercise Mitochondria