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Mind the income gap: bias correction of inequality estimators in small-sized samples
Get PDFIncome inequality estimators are biased in small samples, leading generally to an underestimation. This aspect deserves particular attention when estimating inequality in small domains. After investigating the nature of the bias, we propose a bias correction framework for a large class of inequality measures comprising Gini Index, Generalized Entropy and Atkinson index families by accounting for complex survey designs. The proposed methodology is based on Taylor’s expansions and does not require any parametric assumption on income distribution, being very flexible. Design-based performance evaluation of our proposal has been carried out using data taken from the EU-SILC survey, showing a noticeable bias reduction for all the measures. Lastly, a small area estimation exercise shows the risks of ignoring prior bias correction in a basic area-level model, determining model misspecification
Plant-syrphid interactions in an urban farm matrix
Get PDFInsect biodiversity is being lost at a staggering rate. One of the largest contributors of global insects declines is urban development and expansion (Maxwell et al., 2020). This is because natural and semi-natural landscapes are converted into areas dominated by built features and impervious ground cover, leading to habitat loss and degradation and ultimately, insect and pollinator extinction or replacement (McKinney, 2006). Urban agricultural sites are a growing component of cities to improve food security and reintroduce ‘green spaces’ that could potentially revitalise dull city centres that are otherwise depauperate in vegetation and biodiversity. However, it is still unclear how urban agriculture contributes to biodiversity and whether it beneficially impacts pollinator communities
A.M.A. Alieni Marini dell'Adriatico. Specie aliene lungo il Canale Candiano
Get PDFLe specie aliene sono tutte quelle specie introdotte, intenzionalmente o involontariamente, al di fuori dal loro areale naturale di distribuzione. Oggi si usano diversi sinonimi per indicare le specie aliene, quali specie
esotiche, non-indigene, non-native o alloctone. L’introduzione di nuove specie aliene nei mari di tutto il mondo ha visto una rapida crescita negli ultimi decenni, dovuta alla globalizzazione e allo sviluppo crescente delle
attività umane come il traffico marittimo, l’acquacoltura, la pesca, e il turismo. Quando le specie aliene sopravvivono, si riproducono e diventano abbondanti nel nuovo areale, possono diventare specie invasive. Queste
possono provocare alterazioni alla struttura e alle funzioni dell’ecosistema marino causando alterazioni delle reti trofiche, una omogeneizzazione e perdita di habitat attraverso la riduzione della biodiversità locale e provocando effetti socioeconomici negativi nelle aree costiere. Il Mar Mediterraneo è considerato un hotspot di biodiversità per la sua ricchezza di specie, ma a livello globale, è anche uno dei mari più soggetti alle invasioni biologiche. Ad oggi si possono contare circa 1000 specie aliene nel Mediterraneo (751 specie che si sono già stabilizzate e 242 specie casuali). L’introduzione di queste specie è legata, nella maggior parte dei casi, al loro ingresso passivo o attivo attraverso il canale di Suez, canale che collega il Mar Mediterraneo con il Mar Rosso. Altre vie importanti di introduzione sono il traffico marittimo e l’acquacoltura. Le navi possono trasportare questi animali attraverso le acque di zavorra o attaccati ai loro scafi, che rappresentano per loro un buon substrato per l’insediamento. La maggior parte delle specie aliene che troviamo nel Mar Mediterraneo sono molluschi, pesci, crostacei, e policheti (vermi marini segmentati).
Il libro contiene 16 disegni naturalistici di specie di animali alieni marini trovati lungo il canale Candiano (Ravenna), realizzati dall’illustratrice naturalistica Chiara Ossani con la tecnica delle matite colorate acquerellabili. I disegni sono accompagnati dalle informazioni sulla biologia, ecologia e distribuzione delle specie
Mobilità & Città. Verso una post-car city.
Get PDFLa necessità del cambiamento di paradigma della mobilità nelle nostre città verso un modello meno dipendente dall’uso dell’auto è stato definito post-car city. Il libro, che raccoglie contributi di studiosi di numerose università italiane, restituisce un quadro di misure avviate per traguardare tale modello, valutarne la significatività rispetto alle diverse condizioni insediative e la applicabilità rispetto al quadro normativo di riferimento. Il Rapporto offre tre prospettive di dibattito: si interroga sull’efficacia e trasferibilità di modelli di integrazione trasporto e usi del suolo come i Transit Oriented Development e le politiche per sostenere la accessibilità di prossimità; discute del ruolo delle innovazioni tecnologiche e digitali e delle implicazioni socio-economiche e spaziali della loro diffusione e, infine, si confronta con le necessarie innovazioni normative per perseguire la transizione
REMODEL. WP3. User And System Interface. T3_6. Teaching By Demonstration Of Skills For New Assembly References And Tasks. Simulative evaluation of hand motion mapping. v0
No full textThe dataset contains the data related to human to robot hand mapping, ensuring natural motions and predictability for the operator, since it requires the preservation of the Cartesian position of the fingertips and the finger shapes given by the joint values. We exploit the spatial information available in-hand, in particular, related to the thumb-finger relative position, for combining joint and Cartesian mappings. In this way, it is possible to perform a large range of both volar grasps (where the preservation of finger shapes is more important) and precision grips (where the preservation of fingertip positions is more important) during primary-to-target hand mappings, even if kinematic dissimilarities are present. We consider two specific realizations of this approach: a distance-based hybrid mapping, in which the transition between joint and Cartesian mapping is driven by the approaching of the fingers to the current thumb fingertip position, and a workspace-based hybrid mapping, in which the joint–Cartesian transition is defined on the areas of the workspace in which thumb and fingertips can get in contact. The data are presented in the publication:
Meattini, R., Chiaravalli, D., Palli, G., & Melchiorri, C. (2022). Simulative Evaluation of a Joint-Cartesian Hybrid Motion Mapping for Robot Hands Based on Spatial In-Hand Information. Frontiers in Robotics and AI, 9:878364. doi: 10.3389/frobt.2022.87836
PLUS.WP1 Platform historical framework
Get PDFThe set furnishes a literature review on the genealogy of platform economy with secondary data.
The literature sources can be found in public libraries and public archives, and in archives of municipal transportation companies. Together with main publications we considered maps and photographs. We worked on about 200 books and articles, and we selected 32 pictures. The pictures have been consulted from:
Wikipedia Commons;
Arquivo Municipal de Lisboa;
London Metropolitan Archives;
Opensource Online Archive of the Bibliothèque Nationale de France;
LandsArchive Berlin;
Opensource online archive of the Municipality of Bologna;
Opensource online archives of the Museu de Historia de la Ciutat de Barcelona;
The Servei de Arquelogia de Barcelona;
Internet History Sourcebook Project (IHSP).
All these data therefore already exist, but they have been assembled, analysed and interpreted in an original way
PLUS.WP2 Qualitative analysis of platform labor in Berlin
No full textThis set contains materials from PLUS project field work analysis on platform labour in Berlin. In particular, there are qualitative interviews to Airbnb, Helpling and Uber workers. The same interviews have been coded with Nvivo software and analyzed. Moreover, a final focus group with platform workers had been organized to validate the results of the investigation. Due to Ethics&Privacy regulations applicable at the Leuphana University Lüneburg (for data collected until 31.03.2021) and at the Humboldt University of Berlin (for data collected from 01.04.2021), the set is under restrictions: data can be shared only with PLUS partners for the duration of the PLUS project (until 31.03.2022); from 01.04.2022 access allowed only for Berlin team members
PLUS.WP2 Qualitative analysis of platform labor.Estonia
No full textThis dataset consists of summaries of the qualitative interviews with Airbnb hosts (16) and summaries of the qualitative interviews with Uber drivers (15) conducted in Tallinn. All interviews covered the topics of labour process, skills, and social protection. It is not possible to provide the full transcripts nor the NVivo fail with the transcripts due to the nature of consent the interviewees gave.
In addition, the dataset contains summary/notes of the focus group interview with Uber drivers and Airbnb host. The focus group guidelines were constructed with the aims to introduce participants to the first results of the analysis of interviews done in Tallinn, and to ask for additional reflections, comments and further experiences related to the topics. Some slides with the main results were prepared and presented to the participants as a stimulus for the discussion. Time was also dedicated to discuss Covid-19 period experiences.
For detailed information about the methodology of the qualitative interviews please check the following publications:
Kall, K., Roosalu, T., Unt, M., & Ojamäe, L. (2021). Platformisation of Tallinn’s taxi industry: Results from the PLUS Project. RASI toimetised nr 13. Tallinna Ülikool.
Ojamäe, L., Peik, K., Kall, K., Roosalu, T., & Unt, M. (2021). Hosting in Airbnb: platform work at the
intersection of hospitality, accommodation and home-making. RASI toimetised nr 14. Tallinna Ülikool
PLUS.WP7 Lisbon Sopolabs
Get PDFThis dataset includes the summary documents of the two Social Policy Labs carried out in Lisbon within the framework of PLUS:
• Session 2 - local Level: “Labour Rights and organization in Platform Economy” (November 2020)
• Session 3 - local Level: "How to innovate Welfare for Platform Workers” (January 2022)
In both cases the SoPoLabs involved platform workers, academic scholars and policymakers in structured debate around key topics regarding platform labour and its socio-economic consequences at the urban scale.
“PLUS_16F_PLUS.WP7 Lisbon Sopolabs_Labour_20201021” gives an overview of the local level SoPo lab on the topic "Labour Rights and organization in Platform Economy” that took place 27 November 2020. Several stakeholders engaged with platform economy were recruited to discuss issues related to labour organization and platform workers’ rights in the context of COVID19 pandemic.
“PLUS_16H_PLUS.WP7 Lisbon Sopolabs_Welfare_20220126” gives an overview of the local level SoPo lab on the topic “How to innovate Welfare for Platform Workers” that took place in January 2022. It aimed to identify practical initiatives that can be taken to extend welfare and social security coverage for platform workers
Data - Effect of Suboptimal Neuromuscular Control on the Risk of Massive Wear in Total Knee Replacement
No full textThe dataset contains the results of the musculoskeletal simulations in OpenSim (i.e., knee joint contact forces - JCFs), which were provided as input to the FE analyses, and the results of the wear simulations in Ansys.
More specifically, the file named OpenSim_Results_JCFs.csv contains the predicted total knee joint contact forces, for each of the six walking trials and the three conditions (i.e., JCFact, JCFmet and JCFmax) analyzed, while the file Ansys_Results_WearSimulations.csv reports (1) the maximal contact pressure (on the medial and lateral compartments), (2) the contact area and the volume lost (on the medial and lateral compartments, separately and in total) and (3) the maximal wear depth.
NOTE: the raw experimental data used in this work to develop the models and run the simulations in OpenSim are part of the 6th Grand Challenge competition dataset, which is publicly available on the SimTK platform (https://simtk.org/frs/?group_id=413)