Deconstruyendo la “peer-to-peer sharing economy”: El desafío de la “economía colaborativa” a las cooperativas de plataforma en la era del pos-trabajo…

2022

La denominada economía colaborativa o economía p2p, concepto multifacético de creciente relevancia, constituye nuestro objeto de estudio como resultante de la traducción del vocablo anglosajón “sharing economy”. El presente artículo se plantea metodológicamente como una revisión crítica y una síntesis de las principales tendencias de la economía del siglo XXI del principio del nuevo fenómeno del neo-capitalismo de plataformas digitales. Desde el marco de la contradicción tradicional de trabajo y capital, se realiza un análisis pormenorizado del concepto de “colaboración” como traducción de “sharing”. Se realiza una revisión cronológica de la literatura, identificando los principales trabajo…

Global economic burden of unmet surgical need for appendicitis

2022

Abstract Background There is a substantial gap in provision of adequate surgical care in many low- and middle-income countries. This study aimed to identify the economic burden of unmet surgical need for the common condition of appendicitis. Methods Data on the incidence of appendicitis from 170 countries and two different approaches were used to estimate numbers of patients who do not receive surgery: as a fixed proportion of the total unmet surgical need per country (approach 1); and based on country income status (approach 2). Indirect costs with current levels of access and local quality, and those if quality were at the standards of high-income countries, were estimated. A human capita…

Unveiling the Chemistry of Higher-Order Cycloaddition Reactions within the Molecular Electron Density Theory

2022

The higher-order cycloaddition (HOCA) reaction of tropone with cyclopentadiene (Cp) has been studied within the Molecular Electron Density Theory. The Electron Localization Function (ELF) analysis of the electronic structure of tropone and Cp characterizes the structural behaviors of the two conjugated unsaturated systems, while the conceptual DFT reactivity indices classify tropone as a strong electrophile and Cp as a strong nucleophile participating in polar cycloaddition reactions of reverse electron density flux. Eight competitive reaction paths have been characterized for this cycloaddition reaction. The most favorable one allowing the formation of the formal out [6 + 4] cycloadduct ha…

Uptake and photoinduced degradation of phthalic acid esters (PAEs) in Ulva lactuca highlight its potential application in environmental bioremediation

2022

Abstract The bioaccumulation of phthalates was studied in fragments of Ulva lactuca exposed for a maximum of 31 days at different concentrations of a solution of six phthalic acid esters (PAEs). The algal matrix showed rapid uptake since the first sampling, which increased over the time of the experimental period, at the end of which seaweed’s bioaccumulation potential was also evaluated. After the uptake, the algal matrix was subjected to UV irradiation in order to verify the removal of the phthalates. PAEs with higher octanol–water partition coefficients (logKow) and molecular weights were preferentially uptaken by U. lactuca in all the exposure experiments. It was observed that both accu…

Cancer Prevention with Resistant Starch in Lynch Syndrome Patients in the CAPP2-Randomized Placebo Controlled Trial : Planned 10-Year Follow-up

2022

Abstract The CAPP2 trial investigated the long-term effects of aspirin and resistant starch on cancer incidence in patients with Lynch syndrome (LS). Participants with LS were randomized double-blind to 30 g resistant starch (RS) daily or placebo for up to 4 years. We present long-term cancer outcomes based on the planned 10-year follow-up from recruitment, supplemented by National Cancer Registry data to 20 years in England, Wales, and Finland. Overall, 463 participants received RS and 455 participants received placebo. After up to 20 years follow-up, there was no difference in colorectal cancer incidence (n = 52 diagnosed with colorectal cancer among those randomized to RS against n = 53…

The Effects of Pandemic Restrictions on Public Health-Improvements in Urban Air Quality.

2022

The present study aims to provide evidence on the effects of pandemic curtailment measures on public health, targeting the changes in breathable air quality, within urban areas. The analyzed period covers the full impact of lockdowns in Europe in 2020. We used everyday data for each analyzed pollutant, NO2, SO2, CO, PM2.5 and PM10, from urban monitoring stations that provided real-time concentrations (provided by Copernicus Atmosphere Monitoring Service, Environmental Protection Agency repository and European Environment Agency map services) and satellite data (provided by NASA Orbiting Carbon Observatory 2). In the present study, the urban air quality was computed using a composite index t…

Autonomia privata e Contratto di lavoro Sportivo – Tra rigido formalismo e autonomia dei privati

2022

Outflows and spectral evolution in the eclipsing AMXP SWIFT J1749.4–2807 with NICER, XMM-Newton, and NuSTAR

2022

The neutron star low-mass X-ray binary SWIFT J1749.4–2807 is the only known eclipsing accreting millisecond X-ray pulsar. In this manuscript, we perform a spectral characterization of the system throughout its 2021, 2-week-long outburst, analysing 11 NICER observations and quasi-simultaneous XMM-Newton and NuSTAR single observations at the outburst peak. The broad-band spectrum is well-modelled with a blackbody component with a temperature of ∼0.6 keV, most likely consistent with a hotspot on the neutron star surface, and a Comptonization spectrum with power-law index Γ ∼ 1.9, arising from a hot corona at ∼12 keV. No direct emission from the disc was found, possibly due to it being too cool…

Consumers’ Willingness to Pay for Agri-Food Products Delivered with Electric Vehicles in the Short Supply Chains

2022

This study aims at investigating the consumers’ willingness to pay (WTP) for agri-food products delivered in the farmers markets with electric vehicles (EVs). The empirical analysis has been carried out by administering an online questionnaire to 273 consumers within a hypothetical context. A multiple price list has been provided in order to measure the price premium for 1 kg of oranges transported by EVs comparing with the ones transported by traditional vehicles. A Tobit regression model has been used for the data analysis in order to identify the most influential factors affecting the consumers’ WTP. Results suggest that consumers’ WTP is mainly influenced by environmental attitudes, kn…

Pairwise and higher-order measures of brain-heart interactions in children with temporal lobe epilepsy

2022

Abstract Objective. While it is well-known that epilepsy has a clear impact on the activity of both the central nervous system (CNS) and the autonomic nervous system (ANS), its role on the complex interplay between CNS and ANS has not been fully elucidated yet. In this work, pairwise and higher-order predictability measures based on the concepts of Granger Causality (GC) and partial information decomposition (PID) were applied on time series of electroencephalographic (EEG) brain wave amplitude and heart rate variability (HRV) in order to investigate directed brain-heart interactions associated with the occurrence of focal epilepsy. Approach. HRV and the envelopes of δ and α EEG activity re…

Principales oportunidades ambientales en el distrito industrial textil valenciano

2022

El presente artículo analiza las principales oportunidades ambientales que el distrito industrial (DI) textil valenciano va a tener que afrontar en los próximos años. Para ello, se han recogido datos de primera mano a través de un cuestionario realizado tanto a las consultoras ambientales que trabajan en la zona, como a una muestra de empresas que conforman el DI. La información ha sido complementada con entrevistas al empresariado industrial, recogiendo su visión acerca de cómo los asuntos sobre sostenibilidad son abordados en sus organizaciones. Los resultados aportan evidencias acerca de los servicios ambientales ya cubiertos en la zona, como es el caso de la gestión de tramitaciones amb…

A Review of Mathematical and Computational Methods in Cancer Dynamics.

2022

Cancers are complex adaptive diseases regulated by the nonlinear feedback systems between genetic instabilities, environmental signals, cellular protein flows, and gene regulatory networks. Understanding the cybernetics of cancer requires the integration of information dynamics across multidimensional spatiotemporal scales, including genetic, transcriptional, metabolic, proteomic, epigenetic, and multi-cellular networks. However, the time-series analysis of these complex networks remains vastly absent in cancer research. With longitudinal screening and time-series analysis of cellular dynamics, universally observed causal patterns pertaining to dynamical systems, may self-organize in the si…

Online Communities and Gambling Behaviors : a Systematic Review

2022

Abstract Purpose of Review The internet and virtual environments have enabled the formation of online communities around a variety of interests. Online communities focused on gambling are increasingly popular and attract users to interact and share ideas and experiences with likeminded others. This study reviews evidence from the latest research examining the role of online communities in gambling behaviors and gambling problems. Recent Findings A systematic literature search resulted in 17 studies. Research shows that online communities are used for diverse reasons like discussing gambling experiences and problems, sharing tips, and celebrating winnings with others. These reasons of online…

Modelling and in vivo evaluation of Tendon forces and strain in dynamic rehabilitation exercises : a scoping review

2022

ObjectivesAlthough exercise is considered the preferred approach for tendinopathies, the actual load that acts on the tendon in loading programmes is usually unknown. The objective of this study was to review the techniques that have been applied in vivo to estimate the forces and strain that act on the human tendon in dynamic exercises used during rehabilitation.DesignScoping review.Data sourcesEmbase, PubMed, Web of Science and Google Scholar were searched from database inception to February 2021.Eligibility criteriaCross-sectional studies available in English or Spanish language were included if they focused on evaluating the forces or strain of human tendons in vivo during dynamic exerc…

Solution structure of recombinant Pvfp-5β reveals insights into mussel adhesion

2022

Solution structure of byssal plaque protein Pvfp-5 beta secreted by the Asian green mussel Perna viridis gives molecular insight into mussel adhesion on wet surfaces.Some marine organisms can resist to aqueous tidal environments and adhere tightly on wet surface. This behavior has raised increasing attention for potential applications in medicine, biomaterials, and tissue engineering. In mussels, adhesive forces to the rock are the resultant of proteinic fibrous formations called byssus. We present the solution structure of Pvfp-5 beta, one of the three byssal plaque proteins secreted by the Asian green mussel Perna viridis, and the component responsible for initiating interactions with the…

Comparing Mathematics Early Years Education in Spain, Portugal and Slovenia

2022

This work aims to examine how the learning of mathematics in early childhood is developed in different policies, particularly within the processes of formal education and care in early years institutions. A comparative analysis of early mathematics education policies across countries must consider cultural differences, teaching practice, structural differences and institutional framework conditions, as well as the initial training and professional knowledge of teachers and educators. Extracted from the official country regulations, the following pages include some of the main characteristics of the national systems of early childhood education and care (ECEC) in Portugal, Slovenia and Spain…

Biological traits, geographic distributions, and species conservation in aquatic ecosystems

2022

Aquatic ecosystems (both marine and freshwater) have long served as model systems for exploring the role of environmental stressors on organismal performance and survival, the biogeographic distributions of populations and species, and ultimately the diversity, functioning, and stability of ecosystems (Adams, 2002; Forbes, 1887; MacArthur & Wilson, 2001; Paine, 1969; Somero et al., 2017 ). Climate change, alien species invasions, land use change, urbaniza-tion, and other anthropogenic impacts have all been demonstrated to impair aquatic ecosystems at multiple levels of biological orga-nization within aquatic ecosystems (Karr, 1991; Doney et al., 2012; Harley et al., 2006; Poloczanska et…

Heroic Education: An Educational Project that Helps NEET People Orient Themselves to the Future, Work, and Training with the Skills They Need to Be S…

2022

Heroic education is an educational model that helps young people orient them selves towards the future, work, and training. It provides them with the skills they need to be successful in life. The program offers a variety of courses and activities that help participants learn about themselves and their world. It’s a great way for young people to get started on their path to success. The program is designed to help participants learn about their strengths and weaknesses. It also helps them learn about their options for the future. Heroic education is based on the principle that every young person has the potential to be a hero in their community. The program is offered in partnership with lo…

Dispersion engineered tapered photonic crystal fiber for broadband and tuned 2 µm emission using degenerate four-wave mixing

2022

International audience; We numerically demonstrate a broadband parametric gain around 2 µm using a tapered Photonic crystal fiber.

Antibacterial activity and chemical characterization of almond (Prunus dulcis L.) peel extract

2022

In this study, almond skin of Prunus dulcis L. variety Casteltermini was characterised for its chemical composition and for the inhibitory activity towards food associated microorganisms belonging to pathogenic (Salmonella Enteritidis, Staphylococcus aureus, Escherichia coli and Listeria monocytgenes), spoilage (Pseudomonas poae and Brochotrix thermospacta) and useful (Levilactobacillus brevis and Saccharomyces cerevisiae) groups. The n-hexane extract of P. dulcis skin, investigated by GC–MS, evidenced linoleic, palmitic, and oleic acids as the main abundant compounds. Staphylococcus aureus ATCC 33862 growth was strongly limited by n-hexane extract and the minimum inhibition concentration (…

Study of $\psi(3686)\rightarrow\Lambda\bar{\Lambda}\omega$

2022

Based on a data sample of $(448.1\pm2.9)\times10^6$ $\psi(3686)$ events collected with the BESIII detector at the BEPCII collider, the branching fraction of $\psi(3686)\rightarrow\Lambda\bar{\Lambda}\omega$ is measured to be $\rm (3.30\pm0.34(stat.)\pm0.29(syst.))\times10^{-5}$ for the first time. In addition, the $\Lambda\omega$ (or $\bar{\Lambda}\omega$) invariant mass spectra is studied and the potential presence of excited $\Lambda$ states has been investigated.

« Récits d’enfances mineures dans les Amériques Noires »

2022

International audience; Étude comparée des récits d’enfance (autobiographiques ou non) de quatre romancières contemporaines afrodescendantes nord-américaines et brésiliennes : Maya Angelou, Toni Morrison, Carolina Maria de Jesus et Conceição Evaristo. Il s’agira d’étudier la poétique des « enfances mineures » dans un corpus à plusieurs échelles de minorité(s), constitué de plumes du canon postcolonial, primées et traduites internationalement, mais aussi de voix plus marginales et encore peu reconnues dans leur pays. Les romancières de la favela appartiennent en effet à ce que la critique brésilienne nomme parfois le « quilombo » éditorial, du nom de la contre-culture de résistance des escla…

Liberty and Equality as the Morality of the Rule of Law

2022

After presenting a schematic map of the concepts at stake (liberty, equality) in so far as they are relevant for the general topic (their relationship with rule of law – from now on RoL), and after examining different forms of their relationships, this entry focuses on the specificity of the relationship between liberty and equality in the legal context. The title suggests that a combination of liberty and equality is the very basis of every legal system inspired by RoL. This circumstance requires the identification of different versions of the idea of RoL.

Pathways from Maternal Harsh Discipline Through Rumination to Anxiety and Depression Symptoms: Gender and Normativeness of Harsh Discipline as Modera…

2022

This study examined gender-specific longitudinal pathways from harsh parenting through rumination to anxiety and depression symptoms among early adolescents from three countries and six subgroups. Participants were 567 mothers, 428 fathers, and 566 children (T1: Mage = 10.89; 50% girls) from Medellín, Colombia (n = 100); Naples, Italy (n = 95); Rome, Italy (n = 99); Durham, North Carolina, United States (Black n = 92, Latinx n = 80, and White n = 100). Parent reported maternal and paternal harsh parenting were measured at T1. Adolescent reported rumination was measured at T2 (Mage = 12.58) and anxiety and depression symptoms were measured at T1 and T3 (Mage = 13.71). Rumination mediated the…

Supported Poly(Ionic Liquid)-Heteropolyacid Based Materials for Heterogeneous Catalytic Fructose Dehydration in Aqueous Medium

2022

Two sets of four different supported catalyst materials were prepared. One set was obtained by polymerization of a bis-vinylimidazolium salt, which formed a poly(ionic liquid) coating on SiO2, TiO2, boron nitride BN, and carbon nitride C3N4. The other set was, instead, obtained by immobilizing Keggin heteropolyacid H3PW12O40 onto poly-imidazolium functionalized materials. All the catalysts, including the bare supports, were subjected to physical and chemical characterization by XRD, SEM, Specific Surface Area and pore size measurements, TGA, FTIR, and acidity-basicity measurements. The catalytic activity of the materials was tested versus the fructose dehydration in water solution at two di…

Dual-Diameter Laterals in Center-Pivot Irrigation System

2022

Design strategies to enhance modern irrigation practices, reduce energy consumption, and improve water use efficiency and crop yields are fundamental for sustainability. Concerning Center-Pivot Irrigation Systems, different design procedures aimed at optimizing water use efficiency have been proposed. Recently, following a gradually decreasing sprinkler spacing along the pivot lateral with constant diameter and sprinkler flow rate, a new design method providing a uniform water application rate has been introduced. However, no suggestions were given to design multiple-diameter laterals characterized by different values of the inside pipe diameter. In this paper, first the previous design pro…

The FASER Detector

2022

FASER, the ForwArd Search ExpeRiment, is an experiment dedicated to searching for light, extremely weakly-interacting particles at CERN's Large Hadron Collider (LHC). Such particles may be produced in the very forward direction of the LHC's high-energy collisions and then decay to visible particles inside the FASER detector, which is placed 480 m downstream of the ATLAS interaction point, aligned with the beam collisions axis. FASER also includes a sub-detector, FASER$\nu$, designed to detect neutrinos produced in the LHC collisions and to study their properties. In this paper, each component of the FASER detector is described in detail, as well as the installation of the experiment system …

Connecting Domains—Ecological Momentary Assessment in a Mobile Sensing Framework

2022

Ecological Momentary Assessment (EMA) is the state-of-the-art methodology to capture an individual’s experiences (e.g., feelings, thoughts, behaviors) in daily life in an ecologically valid way. In this chapter, we outline the prominent role of EMA within a broader mobile sensing framework connecting domains of data acquisition from a range of sensing sources. We particularly highlight the advantages of context-aware assessment strategies that link the assessment of experiences to specific sensing events or patterns. Finally, we discuss strategies that go beyond assessment to implement innovative Ecological Momentary Interventions in real-life.

Dental students? perspectives on three intraoral scanners and CAD/CAM systems before and after a pre-clinical elective course in digital dentistry

2022

Intraoral scanners (IOS) are gaining interest in Dentistry for their ability to capture digital impressions of the oral cavity. These digital impressions facilitate the fabrication of indirect restorations using CAD/CAM technology. This study aimed to describe an elective course given to predoctoral dental students on the topic of Digital Dentistry and assess their learning outcomes and system preferences.Three IOS were evaluated by eight students enrolled in a Digital Dentistry elective course. These systems included Emerald S (Planmeca), Cerec Omnicam (Denstply Sirona), and True Definition (3M/Midmark). After a literature review and a hands-on session were completed for each system, the s…

First Observation of the Semileptonic Decay $\Lambda_c^+\rightarrow pK^- e^+\nu_e$

2022

Using $4.5~\mathrm{fb}^{-1}$ of $e^+e^-$ annihilation data samples collected at the center-of-mass energies ranging from 4.600~GeV to 4.699~GeV with the BESIII detector at the BEPCII collider, a first study of the semileptonic decays $\Lambda_c^+\rightarrow pK^-e^+\nu_e$, $\Lambda_c^+\rightarrow \Lambda(1520) e^+\nu_e$ and $\Lambda_c^+\rightarrow \Lambda(1405) e^+\nu_e$ is performed. The $\Lambda_c^+\rightarrow pK^-e^+\nu_e$ decay is observed with a significance of $8.2\sigma$ and the branching fraction is measured to be $\mathcal{B}(\Lambda_c^+\rightarrow pK^- e^+\nu_e)=(0.88\pm0.17_{\rm stat.}\pm0.07_{\rm syst.})\times 10^{-3}$. We also report evidence of $\Lambda_c^+\rightarrow \Lambda(1…

Hemodynamic and ventilatory changes in pediatric patients with special needs: A comparative clinical study

2022

Very limited data are available on the hemodynamic and ventilatory changes during sedation and general anesthesia using bispectral index (BIS) monitoring in intellectually disabled children. The purpose was to determine the hemodynamic and ventilatory changes after propofol and sevoflurane administration in children with special needs (CSN) versus healthy children (HC) during dental treatment.Forty pediatric patients needing dental treatment were allocated into two groups: children without systemic disease (healthy children [HC]) and mentally disabled children (children with special needs [CSN]). Sevoflurane in oxygen (100% oxygen, 5 l/min) and continuous propofol infusion (target-controlle…

Hydrocarbons removal from synthetic bilge water by adsorption onto biochars of dead Posidonia oceanica.

2022

AbstractBilge waters are wastewaters produced on boats during navigation and usually contain hydrocarbons and oils. They cannot be directly released into the sea if not below a hydrocarbons concentration limit set by current legislation. Appropriate oil in water separator (OWS) systems can be installed on board boats to remove hydrocarbons from bilge water allowing their spillage into the sea. These systems may contain an adsorption step on a suitable adsorbent. Here, biochars produced from pyrolysis of dead Posidonia oceanica, pristine or chemically activated, have been tested as hydrocarbons adsorbents. Adsorption experiments with aqueous dispersions simulating bilge waters containing a m…

Mortality after transjugular intrahepatic portosystemic shunt in older adult patients with cirrhosis: A validated prediction model

2022

Background and Aims Implantation of a transjugular intrahepatic portosystemic shunt (TIPS) improves survival in patients with cirrhosis with refractory ascites and portal hypertensive bleeding. However, the indication for TIPS in older adult patients (greater than or equal to 70 years) is debated, and a specific prediction model developed in this particular setting is lacking. The aim of this study was to develop and validate a multivariable model for an accurate prediction of mortality in older adults. Approach and Results We prospectively enrolled 411 consecutive patients observed at four referral centers with de novo TIPS implantation for refractory ascites or secondary prophylaxis of va…

Assessment of the ecological sustainability of river basins based on the modified the ESHIPPOfish model on the example of the Velika Morava basin (Se…

2022

This study examines the ecological sustainability of the Velika Morava River Basin (Serbia, Central Balkans) under modern conditions of multiple freshwater stressors, including climate change. The impact of stressors on the ecological services of the river basin is considered, including: drinking water, irrigation, recreation, tourism, ecotourism, and fishing. In order to assess the ecological sustainability of the river basin, a modification of the ESHIPPO model was performed. The essence of the modification is a change to the ES component, which, in the basic model, assesses the degree of ecological specialization of a taxon; and in the modified assessment of the ecological stability of t…

Fractional quantum oscillator and disorder in the vibrational spectra.

2022

AbstractWe study the role of disorder in the vibration spectra of molecules and atoms in solids. This disorder may be described phenomenologically by a fractional generalization of ordinary quantum-mechanical oscillator problem. To be specific, this is accomplished by the introduction of a so-called fractional Laplacian (Riesz fractional derivative) to the Scrödinger equation with three-dimensional (3D) quadratic potential. To solve the obtained 3D spectral problem, we pass to the momentum space, where the problem simplifies greatly as fractional Laplacian becomes simply $$k^\mu $$ k μ , k is a modulus of the momentum vector and $$\mu $$ μ is Lévy index, characterizing the degree of disorde…

The relationship of dental students’ characteristics to social support, psychosocial factors, lifestyle, and quality of life

2022

To examine the relationships between sociodemographic characteristics, student academic information, social support, sense of coherence, anxiety, lifestyle, and quality of life among dental students.A cross-sectional study among 233 dental students in Brazil. We captured data on sociodemographic and socioeconomic characteristics, social support through Social Support Appraisal, psychosocial factors (sense of coherence and anxiety based on SOC-13 and Depression, Anxiety and Stress Scale-21 - anxiety subscale, respectively), lifestyle as per individual Lifestyle Profile and quality of life based on VERAS-Q. Data was analysed through Structural Equation Modelling.Greater social support, higher…