showing 36 of ~574560 from 574555 documents
Development of a Method for Anodic Degradation of Lignin for the Analysis of Paleo‐Vegetation Proxies in Speleothems
2022
Validity of the dental operating microscope and selective dentin removal with ultrasonic tips for locating the second mesiobuccal canal (MB2) in maxi…
2022
Several investigations have determined whether the use of a dental operating microscope (DOM) in combination with selective dentine removal with ultrasonic tips increases the percentage of location of the Mesiobuccal 2 (MB2) root canal in maxillary first molars (MFM). However, these studies did not report the performance of in vivo measurements with the comparison with a gold standard. The aim of this study was to determine the validity of the DOM and selective dentin removal with ultrasonic tips to locate the MB2 root canal in MFM using Cone Beam Computed Tomography (CBCT) as the gold standard.The initial sample size was 91 patients, but 7 were excluded, so the sample size was 84 patients …
Confident, cautiously confident or concerned? Working life profiles, capabilities, and expectations for work-family reconciliation among young Finnis…
2022
The uncertainties and growing social inequality young adults face in the labour market call for research on the link between young women’s expectations about working life and the real options they have in seeking to combine work with care. Drawing on Sen’s capabilities approach, this study contributes to filling this gap in the literature by examining how women in emerging adulthood in Finland foresee their future career and working life, and how these expectations are associated with socioeconomic and partnership characteristics and their expectations for work-family reconciliation. Survey data obtained from 527 young women aged 18–29 were analysed using latent profile analysis. Three dist…
Production of light (anti)nuclei in pp collisions at √s = 13 TeV
2022
Understanding the production mechanism of light (anti)nuclei is one of the key challenges of nuclear physics and has important consequences for astrophysics, since it provides an input for indirect dark-matter searches in space. In this paper, the latest results about the production of light (anti)nuclei in pp collisions at √s = 13 TeV are presented, focusing on the comparison with the predictions of coalescence and thermal models. For the first time, the coalescence parameters B2 for deuterons and B3 for helions are compared with parameter-free theoretical predictions that are directly constrained by the femtoscopic measurement of the source radius in the same event class. A fair descripti…
A Relational Approach to How Media Engage With Their Audiences in Social Media
2022
People are increasingly turning to social media for their news and for sharing and discussing news with others. Simultaneously, media organizations are becoming platform-dependent and posting short forms of their news on their social media sites in the hope that audiences will not only consume this news but also comment on and share it. This article joins other media and journalism studies exploring this phenomenon through a relational approach to media audiences to better understand how media organizations, particularly newspapers, are cultivating relationships with audiences via social media. Drawing on public relations theory about organization–public relationships, the article examines …
Influence of Geographical Area and Living Setting on Children's Weight Status, Motor Coordination, and Physical Activity
2022
This study was aimed (i) to examine the effect of living setting (rural vs. urban), geographical area (North vs. Center vs. South), and gender (boys vs. girls) on weight status, motor coordination, and physical activity (PA) level of Italian school-age children; (ii) to examine differences in the neighborhood walkability of different school areas from different geographical areas and living settings; and (iii) to examine whether motor coordination, PA level, geographical areas, living setting, neighborhood walkability, and gender could predict children's weight status. We assessed anthropometric parameters, gross motor coordination, and PA level in 1,549 children aged between 8 and 13 years…
Geografie marginali: la mappa e il tempo del piccolo globo virale (Dialogo tra AB e GdS)
2022
A partire dal Meridiano di Paul Celan, tra geografia e retorica, si stabilisce un rapporto tra la fase virale del capitalismo e la virale pandemia. Sul versante della retorica, il meridiano si connette al linguaggio dei media e delle comunicazioni ufficiali che utilizza il termine mappa per mettere in immagine la diffusione del Covid-19. Termine che per i geografi significa tecnicamente panno del mondo, ossia qualcosa che avvolge e circonda il mondo con pieghe e intensit�� in un registro temporale di crisi irriducibile alla ragione reticolare e allo spazio sincronico contemporaneo (Olsson, 2007). �� la proiezione di una simile ���mappamundi virale��� a ridisegnare il contenuto del globo att…
COVID-19, Gender Housework Division and Municipality Size in Spain
2022
The COVID-19 health crisis brought with it an increase in the workload on family members due to the restriction of services and the suspension of formal and informal care networks. Numerous studies have analyzed how home confinement have affected different gender gaps, including the gender gap related to chores within the home. This research aims to contribute to the existing literature from the perspective of gender geography by introducing the variable municipality size in the analyses. Our research in the case of Spain shows the COVID-19 health crisis to have had a significant impact on gender gaps, albeit to varying degrees. Women, especially those living in small municipalities, experi…
Editorial: New Forms of Media Work and Its Organizational and Institutional Conditions
2022
This thematic issue explores the widening scope of media work and the institutional and organizational conditions that support new forms of media work. The media industry has undergone significant economic, structural, and technological changes during the past few decades, including changing patterns of ownership and digitalization of media production, distribution, and consumption. Simultaneously, practices of media work are adopted also in other industries. The 10 articles in the issue not only focus on the new professional roles and responsibilities emerging in the news media industry but also study the practices of media work in organizations in other fields, such as the music industry …
Institutional quality and resource-based economic sustainability: the mediation effects of resource governance
2022
The discovery of extractive resources is associated with multiple opportunities and unbridled optimism on achieving socio-economic development for many countries. However, the question how the host governments meet expectations of indigenous people by ensuring an ideal resource-based economic sustainability (RES) has been receiving less research attention. Using the global panel dataset of 80 resource-endowed economies from 2010 to 2017, we postulate and empirically examine the mediating effect of the resource governance (RESOGV) on the relationship between institutional quality (IQ) and RES. The ANOVA and post hoc ANOVA results revealed significant disparities in terms of IQ, RESOGV, and R…
Tiger King and the Exegesis of COVID-19 Media Coverage of Nonhuman Animals
2022
Beginning with the premise that the media participates in the manufacturing of the societal consent that enables and perpetuates the systematized exploitation of nonhuman animals, this article explores how media coverage of such nonhuman animals (and of wildlife in particular) during the COVID-19 crisis may influence our consumption of popular entertainment in a way that centralizes the discussion on the implications of established speciesist practices. I specifically focus on the impact of the first season of Netflix’s successful docuseries Tiger King: Murder, Mayhem, and Madness, directed by Eric Goode and Rebecca Chaiklin, which was released in March 2020, a key moment in the world…
Performance Comparison of Alternative Hollow-Fiber Modules for Hemodialysis by Means of a CFD-Based Model
2022
Commercial hemodialyzers are hollow-fiber cylindrical modules with dimensions and inlet–outlet configurations dictated mostly by practice. However, alternative configurations are possible, and one may ask how they would behave in terms of performance. In principle, it would be possible to depart from the standard counter-flow design, while still keeping high clearance values, thanks to the increase in the shell-side Sherwood number (Sh) due to the cross-flow. To elucidate these aspects, a previously developed computational model was used in which blood and dialysate are treated as flowing through two interpenetrating porous media. Measured Darcy permeabilities and mass transfer coefficients…
Transforming Obesity Prevention for CHILDren (TOPCHILD) Collaboration: protocol for a systematic review with individual participant data meta-analysi…
2022
ABSTRACTIntroductionBehavioural interventions in early life appear to show some effect in reducing childhood overweight and obesity. However, uncertainty remains regarding their overall effectiveness, and whether effectiveness differs among key subgroups. These evidence gaps have prompted an increase in very early childhood obesity prevention trials worldwide. Combining the individual participant data (IPD) from these trials will enhance statistical power to determine overall effectiveness and enable examination of intervention-covariate interactions. We present a protocol for a systematic review with IPD meta-analysis to evaluate the effectiveness of obesity prevention interventions commen…
Histomorphological evaluation, cell proliferation and endothelial immunostaining in oral and maxillofacial myofibroblastic lesions.
2022
Myofibroblasts (MF) are mesenchymal cells with features of both fibroblasts and smooth muscle cells. Although these are usually reactive cells, they can lead to myofibroblastic tumors that may share clinical and histomorphological characteristics but with different prognosis. The aim of this study is to perform a histomorphological evaluation as well as to compare and evaluate two different cell proliferation immunomarkers and two endothelial markers in a group of oral and maxillofacial myofibroblastic lesions (MFL). Cross-sectional and retrospective study. Demographic, clinical, histomorphological and immunohistochemical characteristics of 39 cases of MFL were analyzed. Immunohistochemical…
Geometric Brownian Motion (GBM) of Stock Indexes and Financial Market Uncertainty in the Context of Non-Crisis and Financial Crisis Scenarios
2022
The present article proposes a methodology for modeling the evolution of stock market indexes for 2020 using geometric Brownian motion (GBM), but in which drift and diffusion are determined considering two states of economic conjunctures (states of the economy), i.e., non-crisis and financial crisis. Based on this approach, we have found that the GBM proved to be a suitable model for making forecasts of stock market index values, as it describes quite well their future evolution. However, the model proposed by us, modified geometric Brownian motion (mGBM), brings some contributions that better describe the future evolution of stock indexes. Evidence in this regard was provided by analyzing …
Nickel(II) complexes with sterically hindered 5,6,7-trihydroquinoline derivatives selectively dimerizing ethylene to 1-butene
2022
A series of nickel complexes bearing N,N-bidentate ligands has been synthesized and characterized by elemental analysis and infrared (IR) spectroscopy. High ethylene dimerization activity, reaching 2.43 × 106 g mol−1(Ni)h−1, was achieved by using these complexes as precatalysts activated with Me2AlCl. Moreover, the selectivity to obtain α-C4 was high (93%–96%). Comparing with the previous report by our group, the higher activity and selectivity may be attributed to the substituent at the 2-position within the ligand, creating the steric hindrance around the metal atom.
Multivariate Metal-Organic Framework/Single-Walled Carbon Nanotube Buckypaper for Selective Lead Decontamination.
2022
The search for efficient technologies empowering the selective capture of environmentally harmful heavy metals from wastewater treatment plants, at affordable prices, attracts wide interest but constitutes an important technological challenge. We report here an eco-friendly single-walled carbon nanotube buckypaper (SWCNT-BP) enriched with a multivariate amino acid-based metal-organic framework (MTV-MOF) for the efficient and selective removal of Pb
A prioritised inventory of crop wild relatives and wild harvested plants of Tunisia
2022
AbstractAn inventory of crop wild relatives (CWR) and wild harvested plants (WHP) occurring in Tunisia, based on the integration of the last available floristic checklists, is presented. The taxa were prioritised according to economic value of the related crop, potential for crop improvement, threat status, endemism, inclusion in the ITPGRFA (Annex I) and average annual contributions to dietary energy (kilocalories) per capita per day by applying a scoring system based on 4 priority levels. Of a total of 2912 taxa belonging to the Tunisian Flora, 2504 CWR and/or WHP (86% of the total), from 143 families and 686 genera, were identified, 2445 of which are CWR and 847 are WHP. In detail, 1654 …
Decline in hospitalization rates for herpes zoster in Italy (2003-2018): reduction in the burden of disease or changing of hospitalization criteria?
2022
Background: Herpes Zoster (HZ) is a very demanding disease caused by the reactivation of latent Varicella Zoster Virus. The main aim of this study was to estimate the burden of the HZ hospitalizations in Italy from 2003 to 2018 evaluating temporal trends. Methods: Retrospective population-based study analyzing Hospital Discharge Records. Hospitalization records reporting the ICD-9 CM 053.X code in the principal diagnosis or in any of the five secondary diagnoses were considered as cases. Trends of hospitalization rates have been evaluated by Joinpoint analyses. Results: Overall, 99,036 patients were hospitalized with HZ in the 16-year period of the study, and 83,720 (84.5%) of these patient…
Towards an Assembly Support System with Dynamic Bayesian Network
2022
Due to the new technological advancements and the adoption of Industry 4.0 concepts, the manufacturing industry is now, more than ever, in a continuous transformation. This work analyzes the possibility of using dynamic Bayesian networks to predict the next assembly steps within an assembly assistance training system. The goal is to develop a support system to assist the human workers in their manufacturing activities. The evaluations were performed on a dataset collected from an experiment involving students. The experimental results show that dynamic Bayesian networks are appropriate for such a purpose, since their prediction accuracy was among the highest on new patterns. Our dynamic Bay…
Development of a Roadmap for the Implementation of a Sustainable Mobility Action Plan in University Campuses of Emerging Countries
2022
Universities are centers of knowledge and their Campuses are like small cities, thus making them the ideal place to develop, apply and evaluate policies and tools for innovative mobility solutions that can subsequently be extended to other contexts. A review of mobility measures in different European Universities has revealed that many of them apply policies to promote sustainable mobility, but there is a significant lack of standardized mobility plans and roadmaps for their successful implementation. The objective of the present work is to develop a successful roadmap, which is necessary for the smooth implementation of a mobility plan, as it has been found through a thorough review of goo…
Probing the Extremes of Covalency in M-Al bonds: Lithium and Zinc Aluminyl Compounds.
2022
Synthetic routes to lithium, magnesium, and zinc aluminyl complexes are reported, allowing for the first structural characterization of an unsupported lithium-aluminium bond. Crystallographic and quantum-chemical studies are consistent with the presence of a highly polar Li-Al interaction, characterized by a low bond order and relatively little charge transfer from Al to Li. Comparison with magnesium and zinc aluminyl systems reveals changes to both the M-Al bond and the (NON)Al fragment (where NON=4,5-bis(2,6-diisopropylanilido)-2,7-di-tert-butyl-9,9-dimethylxanthene), consistent with a more covalent character, with the latter complex being shown to react with CO<sub>2</sub> vi…
On the number of constituents of products of characters
2022
It has been conjectured that if the number of distinct irreducible constituents of the product of two faithful irreducible characters of a finite p-group, for p ≥ 5, is bigger than (p + 1)/2, then it is at least p. We give a counterexample to this conjecture.
First-Line Treatments for Extensive-Stage Small-Cell Lung Cancer With Immune Checkpoint Inhibitors Plus Chemotherapy: A Network Meta-Analysis and Cos…
2022
BackgroundImmune checkpoint inhibitors (ICIs) plus chemotherapy were unlikely to be considered cost-effective compared with chemotherapy as the first-line treatment of patients with extensive-stage small-cell lung cancer (ES-SCLC) in China due to its high costs. However, the cost-effectiveness of the comparison between the regimens of ICIs plus chemotherapy were remained unclear yet. The aim of this study was to evaluate the efficacy and cost-effectiveness of ICIs plus chemotherapy as the first-line treatment for ES-SCLC from the perspective of the Chinese healthcare system.MethodsA network meta-analysis (NMA) was conducted to indirect compare the clinical benefits between the ICIs plus che…
Learning about Students’ Receiving Special Educational Support Experiences of Qualification, Socialization and Subjectification in Finnish Vocational…
2022
This paper airs the experiences of eighteen students with special educational needs completing their studies at a Finnish vocational institution, which has a mandate to provide intensive special support for the students. It contributes to the national and international discussion of education’s purposes and elaborates on students’ descriptions. The study frames a research question: To what extent are Biesta’s domains of good education—qualification, socialization, and subjectification—audible in the narratives of Finland’s VET special educational needs students? The paper adopts a narrative approach and uses narrative positioning analysis as a methodical …
UAV and GPR Data Integration in Glacier Geometry Reconstruction: A Case Study from Irenebreen, Svalbard
2022
Although measurements of thickness and internal structure of glaciers are substantial for the understanding of their evolution and response to climate change, detailed data about polythermal glaciers, are scarce. Here, we present the first ground-penetrating radar (GPR) measurement data of Irenebreen, and high-resolution DEM and orthomosaic, obtained from unmanned aerial vehicle (UAV) photogrammetry. A combination of GPR and UAV data allowed for the reconstruction of the glacier geometry including thermal structure. We compare different methods of GPR signal propagation speed determination and argue that a common midpoint method (CMP) should be used if possible. Our observations reveal that…
Search for radiative b-baryon decays and study of their anomalous photon polarization at LHCb
2022
En esta tesis se presenta el estudio de dos desintegraciones radiativas de bariones que contienen un quark bottom: Lambda_b -> Lambda gamma and Xi_b^- -> Xi^- gamma. En primer lugar, se ha realizado una búsqueda de dichas desintegraciones usando datos tomados por el experimento LHCb para medir sus fracciones de desintegración. En segundo lugar, se usan los candidatos señal para medir la polarización del fotón a haciendo uso del formalismo de helicidad. Esta tesis presenta la primera medida de la polarización del fotón usando la desintegración radiativa b-bariónica Lambda_b -> Lambda gamma, y el primer estudio de la desintegración Xi_b^- -> Xi^- gamma. El marco teórico actual de la física de…
Migrantes, refugiados y tercer sector social. Un análisis del papel de las grandes ONG españolas en la gestión de fondos y políticas
2022
Introducción. A lo largo de los últimos años España ha visto incrementar su población inmigrante y refugiada, lo que ha planteado nuevas necesidades en cuanto a su atención e integración. En gran medida, esta tarea ha recaído en las Organizaciones No Gubernamentales con la financiación del Estado, algo que también habría sucedido en otros países europeos afectados por la crisis de los sistemas de bienestar en mayor o menor medida. Metodología. Con el fin de obtener datos al respecto, hemos procedido a consultar la base de datos de subvenciones del Estado y las resoluciones de las convocatorias del Ministerio de Inclusión, Migraciones y Seguridad Social en relación con la financiación recibi…
A Knowledge, Attitude, and Perception Study on Flu and COVID-19 Vaccination during the COVID-19 Pandemic: Multicentric Italian Survey Insights
2022
In January 2020, Chinese health authorities identified a novel coronavirus strain never before isolated in humans. It quickly spread across the world, and was eventually declared a pandemic, leading to about 310 million confirmed cases and to 5,497,113 deaths (data as of 11 January 2022). Influenza viruses affect millions of people during cold seasons, with high impacts, in terms of mortality and morbidity. Patients with comorbidities are at a higher risk of acquiring severe problems due to COVID-19 and the flu—infections that could impact their underlying clinical conditions. In the present study, knowledge, attitudes, and opinions of the general population regarding COVID-19 and influenza…
The impact of liquid-pressurized extracts of Spirulina, Chlorella and Phaedactylum tricornutum on in vitro antioxidant, antiinflammatory and bacteria…
2022
The impact of Spirulina, Chlorella and Phaeodactylum tricornutum (P. tricornutum) microalgal extracts obtained by pressurized liquid extraction (PLE) on antioxidant and anti-inflammatory activities, microbial growth and in vitro gut microbiota composition was evaluated. PLE, compared to conventional extraction, led to a significant (p < 0.05) increase in proteins, carbohydrates, polyphenols, and antioxidant capacities of the three microalgal extracts. Moreover, Spirulina and P. tricornutum extracts significantly (p < 0.05) reduced the in vitro activation of the inflammatory NF-κB pathway. The microalgal extracts had also an inhibitory effect on the pathogenic bacteria while potential benefi…
Electrocaloric Effect in (1−x)(0.8Na0.5Bi0.5TiO3-0.2BaTiO3)−xCaTiO3 Solid Solutions at High Electric Fields
2022
This research was funded by the Latvian Science Council Fund, grant number lzp-2020/2-0080. The Institute of Solid State Physics, University of Latvia as the Center of Excellence has received funding from the European Union’s Horizon 2020 Framework Programme, grant number 739508.
Asset Tangibility, information asymmetries and intangibles as determinants of family firms leverage
2022
Using a sample of Spanish tourism small and medium-sized firms, we have tested the impact of family control, publicly-available information and tangibility on financial structure, providing a multi-theoretical model that incorporates contributions from the classical theory of finance, inspired by agency theory, the behavioural theory of the firm and strategic theory. The results point to the need to jointly consider the effects of information transmission practices, asset investment decisions and ownership structures on debt capacity. The results show how family control is associated with propensity to take on debt, so that the desire to maintain social control and socioemotional wealth pre…
MAXQDA and its application to Social Sciences: a comparative case study on urban vulnerability
2022
Introducción. En el ámbito de las Ciencias Sociales cada vez es más frecuente el empleo de programas informáticos en el análisis de datos cuantitativos y cualitativos. El presente artículo tiene por objeto presentar la aplicación del software MAXQDA a partir de un estudio de caso comparado sobre vulnerabilidad urbana en el Sur (Guatemala) y en el Norte (España). Para ello, se presenta una revisión teórica internacional sobre la aplicación de plataformas ofimáticas bajo la denominación de CAQDAS, cuyo surgimiento y aplicación ha supuesto en el ámbito de la investigación social nuevos métodos de análisis cualitativos y mixtos. Dentro de dicha denominación, MAXQDA se presenta como una platafor…
Economic Benefits of Waste Pickling Solution Valorization
2022
An integrated hybrid membrane process, composed of a diffusion dialysis (DD), a membrane distillation (MD) and a reactive precipitation unit (CSTR), is proposed as a promising solution for the valorization and onsite recycling of pickling waste streams. An economic analysis was performed aiming to demonstrate the feasibility of the developed process with a NPV of about EUR 40,000 and a DPBP of 4 years. The investment and operating costs, as well as the avoided costs and the benefits for the company operating the plant, were analyzed with an extensive cost tracking exercise and through face-to-face contact with manufacturers and sector leaders. A mathematical model was implemented using the …
Application of PGPB Combined with Variable N Doses Affects Growth, Yield-Related Traits, N-Fertilizer Efficiency and Nutritional Status of Lettuce Gr…
2022
Nitrogen (N) fertilization is a crucial agricultural practice for boosting production traits in vegetables. However, N synthetic fertilizers—commonly adopted by farmers—have several counterproductive effects on the environment and on humans. The research was performed to assess the combined influence of plant growth promoting bacteria (PGPB) (Azospirillum brasilense DSM 1690, A. brasilense DSM 2298 and Pseudomonas sp. DSM 25356) and various N fertilization doses (0, 30, 60 or 120 kg ha−1) on growth, yield, quality and nitrogen indices of lettuce in protected cultivation. Plant height, root collar diameter, number of leaves and fresh weight were enhanced by A. brasilense DS…
Balance performance analysis after the COVID-19 quarantine in children aged between 8 and 12 years old: Longitudinal study.
2022
Background: Corona Virus Disease 2019 (COVID-19) has caused great changes in daily activities, especially in children. In Spain, to avoid infections, a home quarantine was declared, which caused a drastic reduction in daily or weekly physical activity in children. Objective: to analyse the balance performance after the COVID-19-induced quarantine on children's balance, through the use of balance tests, considering the type of sport practiced. Methods: an observational and longitudinal study was carried out with a sample size of 150 healthy children (69 boys and 81 girls) with a mean age of 10.02 ± 1.15 years. Postural control was evaluated under different equilibrium conditions before and a…