A new model to prioritize waiting lists for elective surgery under the COVID-19 pandemic pressure.
R Valente, S Di Domenico, M Mascherini, G Santori, F Papadia, G Orengo, A Gratarola, F Cafiero, F De Cian
A New Reality: Experiences from Canadian Clerkship Medical Students during COVID-19
Canada, Medical Education, medical student, SARS-CoV-2, COVID-19
Medical students across the globe are being impacted by COVID-19. We are Canadian third year medical students who offer our experience as to how COVID-19 has impacted our medical training. We offer insight as to what medical students are doing despite being away from clinical duties. Questions regarding medical student responsibility during COVID-19 are raised. Our lived experience during this time will be beneficial to learn how the role of medical students during a pandemic evolve over time.
International Journal of Medical Students
Public aspects of medicine, Medicine (General)
A new record and redescription of Schizopera (Schizopera) knabeni (Copepoda: Harpacticoida: Miraciidae) from north-western Mexico Un registro nuevo y redescripción completa de Schizopera (Schizopera) knabeni (Copepoda: Harpacticoida: Miraciidae) del noroeste de México
Copepoda, Harpacticoida, Schizopera, Noroeste de México, taxonomia, northwestern Mexico, taxonomy
Specimens of Schizopera Sars, 1905 were found during sampling in 2 brackish systems in central and southern Sinaloa (north-western Mexico). The specimens turned out to belong to Schizopera (Schizopera) knabeni Lang, 1965 which was originally described from Monterey Bay (the type locality) and is known from Cocodrie (Louisiana). Amendments to Lang's (1965) original description and Fiers and Rutledge's (1990) partial redescription are given.Durante una serie de muestreos se hallaron ejemplares del género Schizopera Sars, 1905 en 2 sistemas salobres en el centro y sur de Sinaloa (México). El material recolectado resultó ser Schizopera (Schizopera) knabeni Lang, 1965, una especie de copépodo harpacticoide originalmente descrita de material recolectado en la Bahía de Monterey (localidad tipo) y hallada también en Cocodrie (Louisiana, EUA). Se proporcionan enmiendas a la descripción original de Lang (1965) y a la redescripción parcial de Fiers y Rutledge (1990).
Samuel Gómez, Febe Elizabeth Vargas-Arriaga
A New Series of Cytotoxic Pyrazoline Derivatives as Potential Anticancer Agents that Induce Cell Cycle Arrest and Apoptosis
pyrazoline, antiproliferative, cytotoxicity, cell cycle arrest, apoptosis
A new series of pyrazoline derivatives 1b–12b was designed, synthesized and evaluated for antiproliferative activity against three cancer cell lines (HepG-2, Hela and A549). Additionally, NIH/3T3 cell cytotoxicity were tested and the structure activity relationships (SARs) were also determined. Among these new derivatives, the compounds 3-(4-fluorophenyl)-5-(3,4,5-trimethoxythiophenyl)-4,5-dihydro-1H-pyrazole-1-carbothioamide (1b) and 3-(4-chlorophenyl)-5-(3,4,5-trimethoxythiphenyl)-4,5-dihydro-1H-pyrazole-1-carbothioamide (2b) showed the best activity against HepG-2 cells, with IC50 values of 6.78 μM and 16.02 μM, respectively. They also displayed potent activity against Hela cells; meanwhile, 3-(4-chlorophenyl)-5-(3-bromo-4-hydroxy-5-methoxythiophenyl)-4,5-dihydro-1H-pyrazole-1-carbothioamide (5b) and 3-(4-bromo-phenyl)-5-(3-bromo-4-hydroxy-5-methoxythiophenyl)-4,5-dihydro-1H-pyrazole-1-carbothioamide (6b) were also identified as promising anticancer agents against A549 cells owing to their notable inhibitory effect, compared with cisplatin (IC50 = 29.48 μM). Furthermore, it was also found that compounds 1b and 2b had low cytotoxicity against NIH/3T3 cells and further mechanistic studies revealed that 1b arrested HepG-2 cells cycle at the G2/M phase at high concentrations and induced apoptosis in HepG-2 cells. Moreover, 1b upregulated protein expression level of cleaved caspase-3, cleaved PARP, Bax and p53 and downregulated protein expression level of Bcl-2 in dose-dependent way in HepG-2 cells. Thus, this study indicates that compound 1b might be a promising antitumor drug candidate.
Hong Wang, Jinhong Zheng, Weijie Xu, Cheng Chen, Duncan Wei, Wenxiu Ni, Ying Pan
A new species of Harpacticella Sars, 1908 (Copepoda, Harpacticoida), from a tidal pool on Jeju Island, Korea
A new species of the genus Harpacticella Sars, 1908 is described from a tidal pool on Jeju Island, Korea. Harpacticella jejuensis sp. n. is closely related to H. itoi Chang & Kim, 1991, with regard to the structure of P1 exp-1 and enp-1, the length of P1 exp-1 and exp-2, and the setal number of the P5 exopod in males. However, the new species is clearly distinguishable from H. itoi by the combined following characters: six setae on the P5 exopod in females, one naked seta on the inner margin of P1 exp-2, the short endopod of P1 compared to the exopod, and a naked long seta on the proximal inner margin of the P5 exopod of males. The mtCOI partial sequence is provided as a DNA barcode for the new species.
Seung-Han Lee, Kichoon Kim, Wonchoel Lee
A new species of Laemostenus Bonelli, 1810 (Coleoptera, Carabidae) from Els Ports Natural Park (Catalonia, northeastern Iberian peninsula)
Un nuevo Laemostenus Bonelli, 1810 (Coleoptera, Carabidae) del Parc Natural dels Ports (Cataluña, nordeste de la península ibérica)Se describe Laemostenus (Antisphodrus) portsensis sp. n., localizada en cinco cavidades del Parc Natural dels Ports. Se compara con sus vecinos geográficos, L. (A.) levantinus (Bolívar, 1919) y L. (A.) lassallei Mateu, 1989, de los que se distingue por la forma de la cabeza y el pronoto, y especialmente por la morfología de la genitalia masculina. Se completa el estudio aportando datos sobre el hábitat y la ecología de la nueva especie.
https://www.raco.cat/index.php/ABC/article/view/293206
A new species of Parategastes Sars, 1904 from the Thale Noi Lake, southern Thailand (Copepoda, Harpacticoida, Tegastidae)
Parategastes pholpunthini sp. n. is described and illustrated based on material collected in the Thale Noi Lake, Phatthalung province, southern Thailand. This species can be distinguished from its congeners by the number segments of female antennule, the lengths of rami and basis of P1, the shape of middle inner seta of P4 exp-3, shape of P5, and relative lengths of spine at apically of baseoendopod of P5. The differences among Parategastes species are pointed out and they are compared with the new species. An identification key to species of the genus Parategastes are proposed.
A new species of the genus Aonides Claparède, 1864 (Polychaeta, Spionidae) from the Macaronesian Region (Eastern Central Atlantic)
Polychaeta, Spionidae, Aonides, Atlantic, Macaronesia, Selvagens Islands, Canary Islands
P align=justify>A new spionid of the genus Aonides Claparède, 1864 has been collected in a muddy sand bottom of a marine cave from the Selvagens Islands. This genus included seven species, two of which have been recorded from the central Macaronesian region: Aonides oxycephala (Sars 1862) and the new species Aonides selvagensis. The new species differs from the remaining Aonides species by the presence of 5 anal cirri, 6-8 pairs of branchiae, the absence of eyes, and shape and arrangement of the parapodial hooks.
Maria del Carmen Brito, Jorge Nunez, Rodrigo Riera
Consejo Superior de Investigaciones Científicas
A noção de agricultura familiar no direito brasileiro: uma conceituação em torno de elementos socioeconômicos e culturais
Agricultura Familiar, Justiça socioambiental, Povos e comunidades tradicionais, Social and environmental justice, Traditional peoples and communities, family agriculture
A lei 11.326/2006 positivou no direito brasileiro o conceito de agricultura familiar, identificado a partir de elementos essencialmente socioeconômicos. Contudo, ao estender seus efeitos ao conjunto de povos e comunidades tradicionais, a lei acabou por criar um segundo grupo de agricultores familiares, identificado a partir de elementos culturais. O objetivo do artigo é delimitar os contornos de ambos os grupos, apontando seus elementos centrais definidores.
https://www.seer.furg.br/juris/article/view/6966