Ecosystem response persists after a prolonged marine heatwave.

Some of the longest and most comprehensive marine ecosystem monitoring programs were established in the Gulf of Alaska following the environmental disaster of the Exxon Valdez oil spill over 30 years ago. These monitoring programs have been successful in assessing recovery from oil spill impacts, and their continuation decades later has now provided an unparalleled assessment of ecosystem responses to another newly emerging global threat, marine heatwaves. The 2014-2016 northeast Pacific marine heatwave (PMH) in the Gulf of Alaska was the longest lasting heatwave globally over the past decade, with some cooling, but also continued warm conditions through 2019. Our analysis of 187 time series from primary production to commercial fisheries and nearshore intertidal to offshore oceanic domains demonstrate abrupt changes across trophic levels, with many responses persisting up to at least 5 years after the onset of the heatwave. Furthermore, our suite of metrics showed novel community-level groupings relative to at least a decade prior to the heatwave. Given anticipated increases in marine heatwaves under current climate projections, it remains uncertain when or if the Gulf of Alaska ecosystem will return to a pre-PMH state.

Mothers' Selection of Future Primary Caregivers in Rural West Java, Indonesia.

This study analyzes mothers' preference of a future primary caregiver by using within-family analysis approach in the context of Sundanese population in rural West Java, Indonesia. This is a cross-sectional study involving healthy mothers (60-69 years old) with a perfect score of Instrumental Activity of Daily Living (IADL), and who had at least two living children. The within-family analysis of a selection of future caregivers was conducted based on the report from 177 mothers of their 904 children using multilevel modeling with binomial outcome. Being a daughter, older, emotionally the closest to the mother, having supported the mother in the past, being perceived as future bequest receiver, and being geographically closer to mother increased the chance of being selected as preferred future primary caregivers. There were also cross-level effects of socioeconomic status (SES) on the selection of future primary caregivers by mothers, where poor mothers tend to pick poor children as their future primary caregivers. The results were contrasted to the findings from a similar study conducted in the United States. In addition, the importance of knowledge about future care preference and its implications for intervention is discussed.

Suicidal Risk Following the Termination of Romantic Relationships.

BACKGROUND: The termination of a romantic relationship is an established predictor of suicide attempt. Severing a relationship with a romantic figure can feel life-ending, based on attachment theory. AIMS: The primary goal of this study was to determine if specific risk markers for suicide are related to an individual's commitment level to the romantic relationship prior to its dissolution. METHOD: The purpose of this study was to examine if commitment and investment are linked with suicidal risk in a sample of adults (n = 208) in the United States ages 18-64 who experienced the break-up of a significant romantic relationship within the past 3 months. RESULTS: A structural equation model analysis revealed a significant association between commitment to the romantic relationship and suicidal risk when mediated by depression. This suggests that high commitment to the previous romantic relationship is indirectly associated with suicidal risk, indicating a need for increased attention to individuals who recently experienced a break-up. LIMITATIONS: This study is limited by its cross-sectional design and by retrospective accounts of the previous relationships. CONCLUSION: This study indicates that high commitment to a romantic relationship may serve as a risk factor of depression and therefore of suicide when the relationship is terminated.

The role of phosphoglycans in the susceptibility of Leishmania mexicana to the temporin family of anti-microbial peptides.

Natural product antimicrobial peptides (AMPs) have been proposed as promising agents against the Leishmania species, insect vector borne protozoan parasites causing the neglected tropical disease leishmaniasis. However, recent studies have shown that the mammalian pathogenic amastigote form of L. mexicana, a causative agent of cutaneous leishmaniasis, is resistant to the amphibian-derived temporin family of AMPs when compared to the insect stage promastigote form. The mode of resistance is unknown, however the insect and mammalian stages of Leishmania possess radically different cell surface coats, with amastigotes displaying low (or zero) quantities of lipophosphoglycan (LPG) and proteophosphoglycan (PPG), macromolecules which form thick a glycocalyx in promastigotes. It has been predicted that negatively charged LPG and PPG influence the sensitivity/resistance of promastigote forms to cationic temporins. Using LPG and PPG mutant L. mexicana, and an extended range of temporins, in this study we demonstrated that whilst LPG has little role, PPG is a major factor in promastigote sensitivity to the temporin family of AMPs, possibly due to the conferred anionic charge. Therefore, the lack of PPG seen on the surface of pathogenic amastigote L. mexicana may be implicated in their resistance to these peptides.

Critical assessment of high-circulation print newspaper coverage of the Institute of Medicine report Dietary Reference Intakes for Calcium and Vitamin D.

OBJECTIVE: To evaluate high-circulation US and Canadian newspaper coverage of the Institute of Medicine (IOM) report Dietary Reference Intakes for Calcium and Vitamin D and assess pre-report and post-report reporter-specific vitamin D-related coverage. DESIGN: Two independent reviewers analysed the newspaper articles. The key report findings cited, proportion of sentences describing the IOM report and proportion of sentences describing critical viewpoints on the report were calculated. The content of articles written by reporters with a history of pre-report vitamin D-related articles was compared with that of articles written by reporters without such a history. SETTING: Factiva and LexisNexis searches of the top thirty US and three English-language Canadian print newspapers, by circulation. SUBJECTS: Articles on the IOM report published from 30 November to 21 December 2010 and previous vitamin D-related articles written by the same reporters. RESULTS: Only ten articles met inclusion/exclusion criteria. Articles inconsistently cited the key findings in the IOM report. Reporters with a history of pre-report articles highlighting the benefits of vitamin D dedicated a greater proportion of sentences to viewpoints critical of the IOM report (P < 0·01). There was no significant difference between pre-report publication history and proportion of sentences focused on the IOM report. A borderline-significant difference (P = 0·058) was observed between pre-report articles highlighting the benefits of vitamin D and the absence of reference to potential risks of vitamin D overconsumption. CONCLUSION: Our findings suggest that newspaper articles did not consistently or comprehensively report the IOM recommendations and that pre-report publication history of reporters was related to post-report article content.