A pirataria marítima e sua caracterização como ameaça: presença, tipo, armas, violência e navios atacados entre 1991 e 2019

Maritime piracy is a threat to maritime trade whose contemporary version has been legally addressed by the United Nations Convention on the Law of the Sea (UNCLOS) and International Maritime Organization (IMO) and coercively by the UN and EU. The present article analyzes maritime piracy from the Copenhagen School’s theoretical perspective and its application to the International Chamber of Commerce’s annual reports on piracy, whose information ranges from 1991 to 2019. This analysis indicates two increase periods, characterized by presence, type, arms, violence, and ships under attack.la piratería marítima es una amenaza para el comercio marítimo cuya versión contemporánea ha sido abordada legalmente por la Convención de las Naciones Unidas sobre el Derecho del Mar (CDM) y la Organización Marítima Internacional (OMI) y coercitivamente por la ONU y la UE. El presente artículo analiza la piratería marítima desde la perspectiva teórica de la Escuela de Copenhague y su aplicación a los informes anuales de la Cámara de Comercio Internacional sobre la piratería, cuya información oscila entre 1991 y 2019. El análisis indica dos períodos de aumento, caracterizados por presencia, tipo, armas, violencia y barcos atacados.A pirataria marítima é uma ameaça para o comércio marítimo cuja versão contemporânea vem sendo abordada legalmente pela United Nations Convention on the Law of the Sea e pela Organização Marítima Internacional, e coercitivamente pela Organização das Nações Unidas e pela União Europeia. Neste artigo, é analisada a pirataria marítima a partir da perspectiva teórica da Escola de Copenhague e sua aplicação nos relatórios anuais da Câmara de Comércio Internacional sobre a Pirataria, com infor- mações de 1991 a 2019. A análise indica dois períodos de aumento, caracterizados por presença, tipo, armas, violência e navios atacados

Trajectory and Influence of the Indo-Pacific vision of the United States of America

En mayo de 2018, el USPACOM se renombró como USINDOPACOM, creándose la visión Indo-Pacífico que se presenta como una competencia geopolítica de Estados Unidos de América en contra de China. En consecuencia, se analiza la trayectoria de la visión Indo-Pacífico de Estados Unidos de América y la influencia de tal visión en los Estados que conforman el SQUAD y el non-QUAD. El análisis enfocado a poder, paz, prosperidad y principios, arroja como resultado: que mientras la trayectoria de la visión Indo-Pacífico estadounidense es en contra de China, la influencia a los dos grupos de Estados no es tal cual lo promueve Estados Unidos de América, ya que confronta menos o no se confronta a China y el contenido es dispar o simplemente no se consideraIn May 2018, USPACOM renamed its name USINDOPACOM, creating the Indo-Pacific vision that is presented as a geopolitical competition of the United States of America against China. Consequently, the trajectory of the United States of America´s Indo-Pacific vision and its influence in the SQUAD and the non-QUAD groups are analyzed. The analysis focuses on power, peace, prosperity, and principles has a result: meanwhile, the trajectory of the American Indo-Pacific vision is against China, its influence on SQUAD and non-QUAD groups is not the same because it is not against China or the Indo-Pacific vision is not considere

A 17-residue sequence from the matrix metalloproteinase-9 (MMP-9) hemopexin domain binds α4β1 integrin and inhibits MMP-9-induced functions in chronic lymphocytic leukemia B cells

13 páginas, 7 figuras, 2 tablas -- PAGS nros. 27601-27613We previously showed that pro-matrix metalloproteinase-9 (proMMP-9) binds to B chronic lymphocytic leukemia (B-CLL) cells and contributes to B-CLL progression by regulating cell migration and survival. Induction of cell survival involves a non-proteolytic mechanism and the proMMP-9 hemopexin domain (PEX9). To help design specific inhibitors of proMMP-9-cell binding, we have now characterized B-CLL cell interaction with the isolated PEX9. B-CLL cells bound soluble and immobilized GST-PEX9, but not GST, and binding was mediated by α4β1 integrin. The ability to recognize PEX9 was observed in all 20 primary samples studied irrespective of their clinical stage or prognostic marker phenotype. By preparing truncated forms of GST-PEX9 containing structural blades B1B2 or B3B4, we have identified B3B4 as the primary α4β1 integrin-interacting region within PEX9. Overlapping synthetic peptides spanning B3B4 were then tested in functional assays. Peptide P3 (FPGVPLDTHDVFQYREKAYFC), a sequence present in B4 or smaller versions of this sequence (peptides P3a/P3b), inhibited B-CLL cell adhesion to GST-PEX9 or proMMP-9, with IC50 values of 138 and 279 μm, respectively. Mutating the two aspartate residues to alanine rendered the peptides inactive. An anti-P3 antibody also inhibited adhesion to GST-PEX9 and proMMP-9. GST-PEX9, GST-B3B4, and P3/P3a/P3b peptides inhibited B-CLL cell transendothelial migration, whereas the mutated peptide did not. B-CLL cell incubation with GST-PEX9 induced intracellular survival signals, namely Lyn phosphorylation and Mcl-1 up-regulation, and this was also prevented by the P3 peptides. The P3 sequence may, therefore, constitute an excellent target to prevent proMMP-9 contribution to B-CLL pathogenesisThis work was supported by Grants SAF2009–07035 and RTICC RD06/0020/0011 (to A. G.-P.) and RTICC RD06/0020/0080 (to M. J. T.) from the Ministerio de Ciencia e Innovación, Spain, and by a grant from the Fundación Puerta de Hierro (to J. A. G. M.)Peer reviewe

A qualitative research of adolescents with behavioral problems about their experience in a dialectical behavior therapy skills training group

BACKGROUND: Several quantitative studies support the effectiveness of the Dialectical Behavior Therapy (DBT) psychosocial skills training group component for adolescents with impulse-control disorder and/or emotional dysregulation. However, qualitative research to assess this psychotherapeutic tool in the adolescent population is sparse. This study aims to examine the subjective experience of adolescents with behavioral issues who have completed DBT skills training group, as well as using this experience to extract hypotheses regarding its usefulness which can then be verified at a later time by means of quantitative instruments. METHODS: We developed a qualitative study by using focus groups with adolescents (N=20) whose diagnosis includes symptoms such as behavior disorder, impulse-control disorder and/or emotional dysregulation, and good informants, who have completed DBT skills training. Three focus groups were created. RESULTS: The subjective experience of adolescents who have completed a DBT skills training group is collected in four main categories: experience of illness, motivation for therapy, experience of therapy and results of the therapy. CONCLUSIONS: Adolescents with behavioral problems assess their participation in the DBT skills training group positively, even recommending its usefulness to healthy population. Beyond learning skills, they emphasize the intrapsychic changes (as improvement in reflective activity) that they objectify after the group experience.This study was partially funded by the Spanish Association of Child and Adolescent Psychiatry (AEPNYA) by awarding the research team the 2015 AEPNYA research prize. The funding body had no role in the design of the study and collection, analysis, and interpretation of data and in writing the manuscript

Normothermic regional perfusion vs. super-rapid recovery in controlled donation after circulatory death liver transplantation

[Background & Aims] Although there is increasing interest in its use, definitive evidence demonstrating a benefit for postmortem normothermic regional perfusion (NRP) in controlled donation after circulatory death (cDCD) liver transplantation is lacking. The aim of this study was to compare results of cDCD liver transplants performed with postmortem NRP vs. super-rapid recovery (SRR), the current standard for cDCD.[Methods] This was an observational cohort study including all cDCD liver transplants performed in Spain between June 2012 and December 2016, with follow-up ending in December 2017. Each donor hospital determined whether organ recovery was performed using NRP or SRR. The propensity scores technique based on the inverse probability of treatment weighting (IPTW) was used to balance covariates across study groups; logistic and Cox regression models were used for binary and time-to-event outcomes.[Results] During the study period, there were 95 cDCD liver transplants performed with postmortem NRP and 117 with SRR. The median donor age was 56 years (interquartile range 45–65 years). After IPTW analysis, baseline covariates were balanced, with all absolute standardised differences <0.15. IPTW-adjusted risks were significantly improved among NRP livers for overall biliary complications (odds ratio 0.14; 95% CI 0.06–0.35, p <0.001), ischaemic type biliary lesions (odds ratio 0.11; 95% CI 0.02–0.57; p = 0.008), and graft loss (hazard ratio 0.39; 95% CI 0.20–0.78; p = 0.008).[Conclusions] The use of postmortem NRP in cDCD liver transplantation appears to reduce postoperative biliary complications, ischaemic type biliary lesions and graft loss, and allows for the transplantation of livers even from cDCD donors of advanced age.[Lay summary] This is a propensity-matched nationwide observational cohort study performed using livers recovered from donors undergoing cardiac arrest provoked by the intentional withdrawal of life support (controlled donation after circulatory death, cDCD). Approximately half of the livers were recovered after a period of postmortem in situ normothermic regional perfusion, which restored warm oxygenated blood to the abdominal organs, whereas the remainder were recovered after rapid preservation with a cold solution. The study results suggest that the use of postmortem normothermic regional perfusion helps reduce rates of post-transplant biliary complications and graft loss and allows for the successful transplantation of livers from older cDCD donors.Peer reviewe

Geographic patterns of tree dispersal modes in Amazonia and their ecological correlates

Aim: To investigate the geographic patterns and ecological correlates in the geographic distribution of the most common tree dispersal modes in Amazonia (endozoochory, synzoochory, anemochory and hydrochory). We examined if the proportional abundance of these dispersal modes could be explained by the availability of dispersal agents (disperser-availability hypothesis) and/or the availability of resources for constructing zoochorous fruits (resource-availability hypothesis). Time period: Tree-inventory plots established between 1934 and 2019. Major taxa studied: Trees with a diameter at breast height (DBH) ≥ 9.55 cm. Location: Amazonia, here defined as the lowland rain forests of the Amazon River basin and the Guiana Shield. Methods: We assigned dispersal modes to a total of 5433 species and morphospecies within 1877 tree-inventory plots across terra-firme, seasonally flooded, and permanently flooded forests. We investigated geographic patterns in the proportional abundance of dispersal modes. We performed an abundance-weighted mean pairwise distance (MPD) test and fit generalized linear models (GLMs) to explain the geographic distribution of dispersal modes. Results: Anemochory was significantly, positively associated with mean annual wind speed, and hydrochory was significantly higher in flooded forests. Dispersal modes did not consistently show significant associations with the availability of resources for constructing zoochorous fruits. A lower dissimilarity in dispersal modes, resulting from a higher dominance of endozoochory, occurred in terra-firme forests (excluding podzols) compared to flooded forests. Main conclusions: The disperser-availability hypothesis was well supported for abiotic dispersal modes (anemochory and hydrochory). The availability of resources for constructing zoochorous fruits seems an unlikely explanation for the distribution of dispersal modes in Amazonia. The association between frugivores and the proportional abundance of zoochory requires further research, as tree recruitment not only depends on dispersal vectors but also on conditions that favour or limit seedling recruitment across forest types

Geography and ecology shape the phylogenetic composition of Amazonian tree communities

Aim: Amazonia hosts more tree species from numerous evolutionary lineages, both young and ancient, than any other biogeographic region. Previous studies have shown that tree lineages colonized multiple edaphic environments and dispersed widely across Amazonia, leading to a hypothesis, which we test, that lineages should not be strongly associated with either geographic regions or edaphic forest types. Location: Amazonia. Taxon: Angiosperms (Magnoliids; Monocots; Eudicots). Methods: Data for the abundance of 5082 tree species in 1989 plots were combined with a mega-phylogeny. We applied evolutionary ordination to assess how phylogenetic composition varies across Amazonia. We used variation partitioning and Moran\u27s eigenvector maps (MEM) to test and quantify the separate and joint contributions of spatial and environmental variables to explain the phylogenetic composition of plots. We tested the indicator value of lineages for geographic regions and edaphic forest types and mapped associations onto the phylogeny. Results: In the terra firme and várzea forest types, the phylogenetic composition varies by geographic region, but the igapó and white-sand forest types retain a unique evolutionary signature regardless of region. Overall, we find that soil chemistry, climate and topography explain 24% of the variation in phylogenetic composition, with 79% of that variation being spatially structured (R$^{2}$ = 19% overall for combined spatial/environmental effects). The phylogenetic composition also shows substantial spatial patterns not related to the environmental variables we quantified (R$^{2}$ = 28%). A greater number of lineages were significant indicators of geographic regions than forest types. Main Conclusion: Numerous tree lineages, including some ancient ones (>66 Ma), show strong associations with geographic regions and edaphic forest types of Amazonia. This shows that specialization in specific edaphic environments has played a long-standing role in the evolutionary assembly of Amazonian forests. Furthermore, many lineages, even those that have dispersed across Amazonia, dominate within a specific region, likely because of phylogenetically conserved niches for environmental conditions that are prevalent within regions