Carbon Quantum Dots from Lemon Waste Enable Communication among Biodevices

A bioinspired method of communication among biodevices based on fluorescent nanoparticles is herein presented. This approach does not use electromagnetic waves but rather the exchange of chemical systems—a method known as molecular communication. The example outlined was based on the fluorescence properties of carbon dots and follows a circular economy approach as the method involves preparation from the juice of lemon waste. The synthesis is herein presented, and the fluorescence properties and diffusion coefficient are evaluated. The application of carbon dots to molecular communication was studied from a theoretical point of view by numerically solving the differential equation that governs the phenomenon. The theoretical results were used to develop a prototype molecular communication platform that enables the communication of simple messages via aqueous fluids to a fluorescence-detecting biodevice receiver

Carbon Quantum Dots as Fluorescence Nanochemosensors for Selective Detection of Amino Acids

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L'artivismo di Giacomo Verde: come l'arte in video può cambiare le prospettive individuali e sociali

Ho deciso di approfondire la figura di Giacomo Verde. Nel primo capitolo s’intende inquadrare il periodo storico nel quale Verde si è inserito e le correnti storiche che ha attraversato. Il secondo capitolo è dedicato all’arte ludica e in particolare, all’invenzione del Teleracconto (1989) per il gruppo Giallo Mare Minimal Teatro. Dalla Storia di Hansel e Gretel a Bit il burattino ai racconti illustrati con gli ologrammi, ad altri progetti in video, Verde sposta l’attenzione dell’arte dall’oggetto al soggetto. Nel terzo capitolo, si farà riferimento a ciò che ha segnato nel profondo la sua carriera: l’Artivismo. Il suo significato e come viene applicato alla vita pratica. Con questo percorso si ha l’auspicio che la voglia di battersi per un valore, per un cambiamento sociale non sia solo simbolico. Concretizzare può essere un atto difficile da perseguire ed è per questo che ci vengono incontro gli strumenti e le persone; con l’arte in video si scatena un po' lo stesso meccanismo: arte fatta di dispositivi tecnologi che coniugano più aspetti della vita umana: primo fra tutti quello emozionale. Alla luce di queste premesse e per concludere l’excursus su un artista poliedrico, ho deciso di somministrare un sondaggio a campione parziale. Ispirata dalle esperienze passate e dalla prefazione di Antonio Caronia in Artivismo tecnologico. Scritti e interviste su arte, politica, teatro e tecnologie (2007), mi sono chiesta cosa ne pensassero gli altri circa il rapporto tra arte e politica, quanto questi si sentano influenzati da una società che comunica quasi esclusivamente attraverso le immagini. Verde, in fondo, con la sua poetica, insegna che l’arte, per essere incline alla condivisione e accessibile a tutti, deve essere anche fatta dalle persone

NEOTROPICAL CARNIVORES: a data set on carnivore distribution in the Neotropics

Mammalian carnivores are considered a key group in maintaining ecological health and can indicate potential ecological integrity in landscapes where they occur. Carnivores also hold high conservation value and their habitat requirements can guide management and conservation plans. The order Carnivora has 84 species from 8 families in the Neotropical region: Canidae; Felidae; Mephitidae; Mustelidae; Otariidae; Phocidae; Procyonidae; and Ursidae. Herein, we include published and unpublished data on native terrestrial Neotropical carnivores (Canidae; Felidae; Mephitidae; Mustelidae; Procyonidae; and Ursidae). NEOTROPICAL CARNIVORES is a publicly available data set that includes 99,605 data entries from 35,511 unique georeferenced coordinates. Detection/non-detection and quantitative data were obtained from 1818 to 2018 by researchers, governmental agencies, non-governmental organizations, and private consultants. Data were collected using several methods including camera trapping, museum collections, roadkill, line transect, and opportunistic records. Literature (peer-reviewed and grey literature) from Portuguese, Spanish and English were incorporated in this compilation. Most of the data set consists of detection data entries (n = 79,343; 79.7%) but also includes non-detection data (n = 20,262; 20.3%). Of those, 43.3% also include count data (n = 43,151). The information available in NEOTROPICAL CARNIVORES will contribute to macroecological, ecological, and conservation questions in multiple spatio-temporal perspectives. As carnivores play key roles in trophic interactions, a better understanding of their distribution and habitat requirements are essential to establish conservation management plans and safeguard the future ecological health of Neotropical ecosystems. Our data paper, combined with other large-scale data sets, has great potential to clarify species distribution and related ecological processes within the Neotropics. There are no copyright restrictions and no restriction for using data from this data paper, as long as the data paper is cited as the source of the information used. We also request that users inform us of how they intend to use the data

NEOTROPICAL ALIEN MAMMALS: a data set of occurrence and abundance of alien mammals in the Neotropics

Biological invasion is one of the main threats to native biodiversity. For a species to become invasive, it must be voluntarily or involuntarily introduced by humans into a nonnative habitat. Mammals were among first taxa to be introduced worldwide for game, meat, and labor, yet the number of species introduced in the Neotropics remains unknown. In this data set, we make available occurrence and abundance data on mammal species that (1) transposed a geographical barrier and (2) were voluntarily or involuntarily introduced by humans into the Neotropics. Our data set is composed of 73,738 historical and current georeferenced records on alien mammal species of which around 96% correspond to occurrence data on 77 species belonging to eight orders and 26 families. Data cover 26 continental countries in the Neotropics, ranging from Mexico and its frontier regions (southern Florida and coastal-central Florida in the southeast United States) to Argentina, Paraguay, Chile, and Uruguay, and the 13 countries of Caribbean islands. Our data set also includes neotropical species (e.g., Callithrix sp., Myocastor coypus, Nasua nasua) considered alien in particular areas of Neotropics. The most numerous species in terms of records are from Bos sp. (n = 37,782), Sus scrofa (n = 6,730), and Canis familiaris (n = 10,084); 17 species were represented by only one record (e.g., Syncerus caffer, Cervus timorensis, Cervus unicolor, Canis latrans). Primates have the highest number of species in the data set (n = 20 species), partly because of uncertainties regarding taxonomic identification of the genera Callithrix, which includes the species Callithrix aurita, Callithrix flaviceps, Callithrix geoffroyi, Callithrix jacchus, Callithrix kuhlii, Callithrix penicillata, and their hybrids. This unique data set will be a valuable source of information on invasion risk assessments, biodiversity redistribution and conservation-related research. There are no copyright restrictions. Please cite this data paper when using the data in publications. We also request that researchers and teachers inform us on how they are using the data