Identidad de Basanacantha inermis y B. wittii (Rubiaceae) y clave de las especies de Randia de la Amazonia brasileña

Como parte de la revisión de Randia para Sudamérica, se discute la identidad de dos especies amazónicas del género. Basanacantha inermis, descripta para Amazonia y conocida solo por el material tipo, es aquí reconocida como parte de la circunscripción de Randia. El uso del epíteto inermis se encuentra bloqueado en este género por uno anterior (Randia inermis Sessé & Moc.), por lo tanto, se provee un nuevo nombre, R. adolphoduckei. Basanacantha wittii, también reconocida hasta el presente solo por el tipo, es aquí considerada como nuevo sinónimo de R. hondensis. Se elige un lectotipo para B. wittii y un neotipo para R. hondensis. Se presentan descripciones completas para Randia adolphoduckei y R. hondensis, incluyendo datos de su biología y distribución. Se provee una ilustración de R. adolphoduckei detallando sus aspectos principales. Se presenta también una clave de las especies que habitan la Amazonia brasileña

Family Cluster of Mayaro Fever, Venezuela

A cluster of protracted migratory polyarthritis involving four adult family members occurred in January 2000 after a brief overnight outing in a rural area of Venezuela. Laboratory testing demonstrated Mayaro virus as the cause of the cluster. These results documented the first human cases of Mayaro virus in Venezuela

Unveiling the impact of a CF2 motif in the isothiourea catalyst skeleton : evaluating C(3)-F2-HBTM and its catalytic activity

The St Andrews Team (A. D. S., K. K., M. T. W.) thanks the EaSI-CAT centre for Doctoral Training (MTW) and the EPSRC (EP/T023643/1; KK). The Linz team (L. S., A. E., M. W.) gratefully acknowledges generous financial support by the Austrian Science Funds (FWF) through project No. P31784, the Erasmus+ program and the JKU Linz/Upper Austria scheme. The Madrid team (J. A. F.-S., J. A., R. d. R-R.) gratefully acknowledges the Spanish Government (RTI2018-095038-B-100), “Communidad de Madrid” for European Structural Funds (S2018/NMT-4367) and proyectos sinergicos I + D (Y2020/NMT-6469) for funding. J. A. F.-S. thanks the Spanish government for a Ramón y Cajal contract.The incorporation of the CF2 motif within organic structures is known to affect the susceptibility of functional groups to oxidation, as well as altering conformation and reactivity. In this manuscript, the incorporation of the CF2 functional group within an isothiourea catalyst skeleton to give C(3)-F2-HBTM is reported. Effective gram-scale routes to both racemic and enantiopure heterocyclic Lewis bases are developed, with preliminary catalytic and kinetic activity evaluated.Peer reviewe

Challenges and Opportunities for Psychological Research in the Majority World

How can psychology transform itself into an inclusive science that engages with the rich cultural diversity of humanity? How can we strive towards a broader and deeper understanding of human behavior that is both generalizable across populations and attentive to its diversity? To address these major questions of our field, relying on scholars from different world regions, we outline first the opportunities associated with conducting psychological research in these and other majority world regions, highlighting international collaborations. Cross-cutting research themes in psychological research in the majority world are presented along with the urgent need to adopt a more critical lens to research and knowledge production within psychology. Indigenization, critical, transformative and liberatory approaches to understanding psychological phenomena framed within the decolonial imperative are presented as future options for a more diverse and equitable psychological science. Next, we address challenges, including limited institutional research infrastructure, limited national investment in research, political and social challenges these regions face, and the impact of imported (rather than locally produced) psychological knowledge. We conclude by offering recommendations to enable psychological science to be more representative of the world’s population. Our aim is to facilitate a broader, better-informed, and more empathic conversation among psychological scientists worldwide about ways to make psychological science more representative, culturally informed and inclusive

Charge density wave in layered La1-xCexSb2

The layered rare-earth diantimonides RSb2 are anisotropic metals with generally low electronic densities whose properties can be modified by substituting the rare earth. LaSb2 is a nonmagnetic metal with a low residual resistivity presenting a low-temperature magnetoresistance that does not saturate with the magnetic field. It has been proposed that the latter can be associated to a charge density wave (CDW), but no CDW has yet been found. Here we find a kink in the resistivity above room temperature in LaSb2 (at 355 K) and show that the kink becomes much more pronounced with substitution of La by Ce along the La1-xCexSb2 series. We find signatures of a CDW in x-ray scattering, specific heat, and scanning tunneling microscopy (STM) experiments in particular for x≈0.5. We observe a distortion of rare-earth-Sb bonds lying in-plane of the tetragonal crystal using x-ray scattering, an anomaly in the specific heat at the same temperature as the kink in resistivity and charge modulations in STM. We conclude that LaSb2 has a CDW which is stabilized in the La1-xCexSb2 series due to substitutional disorder.E.H. acknowledges the support of Departamento Administrativo de Ciencia, Tecnología e Innovación, COL-CIENCIAS (Colombia) Programa Doctorados en el Exterior Convocatoria 568-2012. This work was supported by the Spanish MINECO (FIS2014-54498-R, MAT2011-27470-C02-02, and CSD-2009-00013), by the European Union (Graphene Flagship Contract No. CNECT-ICT-604391 and COST MP1201 action), and by the Comunidad de Madrid through programs Nanofrontmag-CM (S2013/MIT-2850) and MAD2D-CM (S2013/MIT-3007). We acknowledge MINECO and CSIC for financial support and for provision of synchrotron radiation facilities and would like to thank the SpLine BM25 staff for assistance in using the beamline

Illness perceptions of COVID-19 in Europe: Predictors, impacts and temporal evolution

Objective: Illness perceptions (IP) are important predictors of emotional and behavioral responses in many diseases. The current study aims to investigate the COVID-19-related IP throughout Europe. The specific goals are to understand the temporal development, identify predictors (within demographics and contact with COVID-19) and examine the impacts of IP on perceived stress and preventive behaviors. Methods: This was a time-series-cross-section study of 7, 032 participants from 16 European countries using multilevel modeling from April to June 2020. IP were measured with the Brief Illness Perception Questionnaire. Temporal patterns were observed considering the date of participation and the date recoded to account the epidemiological evolution of each country. The outcomes considered were perceived stress and COVID-19 preventive behaviors. Results: There were significant trends, over time, for several IP, suggesting a small decrease in negativity in the perception of COVID-19 in the community. Age, gender, and education level related to some, but not all, IP. Considering the self-regulation model, perceptions consistently predicted general stress and were less consistently related to preventive behaviors. Country showed no effect in the predictive model, suggesting that national differences may have little relevance for IP, in this context. Conclusion: The present study provides a comprehensive picture of COVID-19 IP in Europe in an early stage of the pandemic. The results shed light on the process of IP formation with implications for health-related outcomes and their evolution. © Copyright © 2021 Dias Neto, Nunes da Silva, Roberto, Lubenko, Constantinou, Nicolaou, Lamnisos, Papacostas, Höfer, Presti, Squatrito, Vasiliou, McHugh, Monestès, Baban, Alvarez-Galvez, Paez-Blarrina, Montesinos, Valdivia-Salas, Ori, Lappalainen, Kleszcz, Gloster, Karekla and Kassianos

Association of diabetes and diabetes treatment with incidence of breast cancer

[EN] The aim of this study was to evaluate the association of diabetes and diabetes treatment with risk of postmenopausal breast cancer.Histologically confirmed incident cases of postmenopausal breast (N = 916) cancer were recruited from 23 Spanish public hospitals. Population-based controls (N = 1094) were randomly selected from primary care center lists within the catchment areas of the participant hospitals. ORs (95 % CI) were estimated using mixed-effects logistic regression models, using the recruitment center as a random effect term. Breast tumors were classified into hormone receptor positive (ER+ or PR+), HER2+ and triple negative (TN). Diabetes was not associated with the overall risk of breast cancer (OR 1.09; 95 % CI 0.82–1.45), and it was only linked to the risk of developing TN tumors: Among 91 women with TN tumors, 18.7 % were diabetic, while the corresponding figure among controls was 9.9 % (OR 2.25; 95 % CI 1.22–4.15). Regarding treatment, results showed that insulin use was more prevalent among diabetic cases (2.5 %) as compared to diabetic controls (0.7 %); OR 2.98; 95 % CI 1.26–7.01. They also showed that, among diabetics, the risk of developing HR+/HER2− tumors decreased with longer metformin use (ORper year 0.89; 95 % CI 0.81–0.99; based on 24 cases and 43 controls). This study reinforces the need to correctly classify breast cancers when studying their association with diabetes. Given the low survival rates in women diagnosed with TN breast tumors and the potential impact of diabetes control on breast cancer prevention, more studies are needed to better characterize this association.S

Corrigendum: Illness perceptions of COVID-19 in Europe: Predictors, impacts and temporal evolution

A corrigendum on Illness perceptions of COVID-19 in Europe: predictors, impacts and temporal evolution by Dias Neto, D., Nunes da Silva, A., Roberto, M. S., Lubenko, J., Constantinou, M., Nicolaou, C., Lamnisos, D., Papacostas, S., Höfer, S., Presti, G., Squatrito, V., Vasiliou, V. S., McHugh, L., Monestès, J. L., Baban, A., Alvarez-Galvez, J., Paez-Blarrina, M., Montesinos, F., Valdivia-Salas, S., Ori, D., Lappalainen, R., Kleszcz, B., Gloster, A., Karekla, M., and Kassianos, A. P. (2021). Front. Psychol. 12:640955. doi: 10.3389/fpsyg.2021.640955info:eu-repo/semantics/publishedVersio