INVASIVE CARP MOVEMENT, BEHAVIOR, AND HABITAT USE: EVALUATING COMMON CARP AS A SURROGATE FOR BIGHEADED CARPS

Invasive species are a major concern for fish populations globally, and the ability to predict the susceptibility of ecosystems to additional invasions or range expansions is needed. Bigheaded carp [Silver Carp (Hypophthalmichthys moltrix) and Bighead Carp (H. nobilis)] pose a serious threat to the Great Lakes Basin and numerous other aquatic ecosystems, where suitable habitat for spawning could allow for the establishment of breeding populations. Evaluating a surrogate would be useful to predict how bigheaded carp behave beyond their current range. To determine whether Common Carp (Cyprinus carpio) is an appropriate surrogate for bigheaded carp, their potential overlap in diets, habitat selection, and behavior must be considered. Fifty-seven adult Common Carp and 7 adult bigheaded carp were acoustically tagged in the Starved Rock Pool on the Illinois River in April 2019. Active tracking occurred monthly during the summer (June-October) of 2019 and 2020, as well as with an array of passive receivers in the Illinois River. Common Carp serve as a viable surrogate for bigheaded carp in dam passage, habitat selection during summer (avoidance of main channel, and channel border while selecting for side channel habitats), and movement probability (significance for both species for weekly average discharge). However, these results should be used with caution when predicting range size (larger core ranges for Common Carp, larger total ranges for bighead carp)and movement (different environmental variables influence movement). Because bigheaded carp are likely to spread much farther and faster than common carp, a more migratory surrogate should be explored such as Paddlefish (Polyodon spathula) or Blue Sucker (Cycleptus elongatus)

Male fetal loss in the U.S. following the terrorist attacks of September 11, 2001

Background: The secondary sex ratio (i.e., the odds of a male birth) reportedly declines following natural disasters, pollution events, and economic collapse. It remains unclear whether this decline results from an excess of male fetal loss or reduced male conceptions. The literature also does not converge as to whether the terrorist attacks of September 11, 2001 induced "communal bereavement", or the widespread feeling of distress among persons who never met those directly involved in the attacks. We test the communal bereavement hypothesis among gravid women by examining whether male fetal deaths rose above expected levels in the US following September 11, 2001. Methods: We apply interrupted time-series methods to all fetal deaths at or greater than the 20(th) week of gestation in the US from 1996 to 2002. Time-series methods control for trends, seasonality, and other forms of autocorrelation that could induce spurious associations. Results: Results support the hypothesis in that the fetal death sex ratio (i.e., the odds of a male fetal death) increased above its expected value in September 2001. Additional analysis of the secondary sex ratio indirectly supports that the terrorist attacks may have threatened the gestation of male more than female fetuses. Conclusions: Societal responses to events such as September 11, 2001 do not appear confined only to persons who have ever met the deceased. The fetal death sex ratio in the US population may serve as a sentinel indicator of the degree to which pregnant women react to population stressors

Highly photoluminescent copper carbene complexes based on prompt rather than delayed fluorescence

Linear two-coordinate copper complexes of cyclic (alkyl)(amino)-carbenes (CAAC)CuX (X = halide) show photoluminescence with solid-state quantum yields of up to 96%; in contrast to previously reported Cu photoemitters the emission is independent of temperature over the range T = 4 – 300 K and occurs very efficiently by prompt rather than delayed fluorescence, with lifetimes in the sub-nanosecond range

Supporting addiction affected families effectively: a feasibility randomised controlled trial of a psychosocial intervention delivered by lay counsellors in Goa, India.

Background: Despite evidence of the burden of alcohol use on families, there is a lack of adequate and targeted support. We aimed to examine the feasibility, acceptability and impact of Supporting Addiction Affected Families Effectively (SAFE), a brief lay counsellor-delivered intervention for affected family members (AFMs). Methods: Parallel arm feasibility randomised controlled trial [1:1 allocation to SAFE or enhanced usual care (EUC)]. The primary outcome was mean difference in symptom score assessed by the Symptom Rating Test and secondary outcomes were difference in coping, impact and social support scores measured by the Coping Questionnaire, Family Member Impact Questionnaire, and Alcohol, Drugs and the Family Social Support Scale. Process data examining feasibility and acceptability were also collected. The primary analysis was intention to treat at the 3-month endpoint. Results: In total, 115 AFMs were referred to the trial, and 101 (87.8%) consenting participants were randomised to the two arms (51 SAFE arm and 50 EUC arm). Seventy-eight per cent completed treatment, with the mean number of sessions being 4.25 sessions and mean duration being 53 min. Ninety-five per cent completed outcome assessment. There were no statistically significant differences between SAFE and EUC on any of the outcome measures, except for the between-group adjusted mean differences for social support scores (AMD −6.05, 95% CI −10.98 to −1.12, p = 0.02). Conclusion: Our work indicates that it is possible to identify AFMs through community networking, and have high rates of participation for lay counsellor-delivered psychosocial care. Nevertheless, there is a need for further intervention development to ensure its contextual relevance and appropriateness

Insights into past ocean proxies from micron-scale mapping of sulfur species in carbonates

Laboratory work and analyses were supported by a Steve Fossett Fellowship awarded to Rose; a U.S. Department of Energy (DOE) Biological and Environmental Research grant (DE-SC0014613), U.S. National Science Foundation (NSF) grants (EAR-0951509, 1229370), an Agouron Institute (California, USA) grant, a Packard (The David and Lucile Packard Foundation, California, USA) Fellowship, and a Hanse-Wissenschaftskolleg (Germany) Fellowship awarded to Fike; and an NSF Career Grant (EAR-1056480) awarded to Catalano. Use of the Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory (California, USA), is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under contract DE-AC02-76SF00515. GeoSoilEnviroCARS is supported by the NSF–Earth Sciences (EAR-1634415) and DOE–GeoSciences (DE-FG02-94ER14466).Geological reconstructions of global ocean chemistry and atmospheric oxygen concentrations over Earth history commonly rely on the abundance and stable isotopic composition (δ34S) of sulfur-bearing compounds. Carbonate-associated sulfate (CAS), sulfate bound within a calcium carbonate mineral matrix, is among the most commonly interrogated sulfur mineral phases. However, recent work has revealed variability in δ34SCAS values that cannot be explained by evolution of the marine sulfate reservoir, challenging the common interpretation that CAS is inherently a high-fidelity record of seawater sulfate. To investigate the source of this inconsistency, we used X-ray spectromicroscopy to map the micron-scale distribution of S-bearing sedimentary phases in Ordovician-aged (ca. 444 Ma) shallow marine carbonates from Anticosti Island, Québec, Canada. Clear differences in the abundance of CAS are observed between cements and fossils, suggesting that variance in bulk-rock data could be a consequence of component mixing and that coupled synchrotron-petrographic screening can identify the carbonate components that are most likely to retain primary CAS. Furthermore, we observe multiple, distinct forms of sulfate (both inorganic and organic). Differences in these forms among fossil clades could provide new insights into biomineralization mechanisms in extinct organisms.PostprintPeer reviewe

The systematic development of a mobile phone–delivered brief intervention for hazardous drinking in India

Background: The treatment gap for alcohol use disorders (AUD) in India is the highest among all mental health and substance use disorders. Despite evidence of the cost effectiveness of brief interventions (BIs) for hazardous drinking, implementation in low- and middle-income countries (LMICs) is rare due to several human resource–related barriers. This paper describes the processes and outputs of a study aimed at systematically developing a mobile phone–delivered BI to overcome such barriers. Methods: This is a mixed methods study with four steps: (1) Review of existing relevant evidence base by extracting data from studies cited in two recent, relevant and high-quality systematic reviews; (2) In-depth interviews (IDIs) with 11 national experts in addictions research and practice, and 22 hazardous drinkers; (3) Delphi survey (2 rounds) to identify components for the intervention package through consensus building; and (4) Content and intervention development workshops with a range of stakeholders to develop the intervention package. Results: The research team sourced 72 journal articles from two selected systematic reviews. Key content areas extracted from the studies included facts and statistics about health related to drinking behavior, self-reflection, goal-setting messages, motivational messages, and skills to manage risky situations. The IDIs with experts and hazardous drinkers endorsed most of these content areas as well. The Delphi survey achieved consensus on 19 content areas, which included targeted recommendations, personalized feedback and information, goal management, and coping skills. The content and intervention development workshops resulted in an intervention package delivered over 8 weeks, with the following seven themes guiding the content of the weekly messages: safe drinking/health education, alcohol reduction, drinking and risk management, drinking alternatives, situational content, urge management, and maintenance and relapse prevention. Conclusion: The research team designed this study to consider contextual factors while developing the intervention, which is important to ensure acceptability and feasibility of the intervention. Interestingly, the contextually informed intervention components had several commonalities with BIs developed and tested in high-income countries.</p

Coping Strategies and Help-Seeking Behaviors among Survivors of Intimate Partner Violence: A Qualitative Study of Spouses of Men with Heavy Drinking in India

Background. Despite the high prevalence of intimate partner violence (IPV) against women in India (33%), there are persistently low rates of disclosure and help-seeking amongst survivors. The aim of this study was to explore both coping strategies employed by survivors and the perceived barriers and facilitators to seeking support from informal and formal resource networks. Methods. We conducted semistructured, in-depth qualitative interviews with thirty-five women survivors of IPV in Goa, India, in secure, private locations, utilizing flipcharts and vignettes to elicit deeper insights into efficacies of support resources. The data were transcribed, translated, and analyzed utilizing qualitative content analysis. Results. The most common coping mechanisms cited by survivors involved passive resistance, such as self-distraction, keeping quiet during violent outbursts, and leaving the home temporarily. Generally, survivors sought support from informal support networks (the natal family, in-laws, neighbors/community members, and close friends) before approaching formal support structures (medical/legal professionals, professors, police, and nongovernment organizations). In fact, informal structures were often facilitators of formal help-seeking. Survivors sought help at various stages of their marital relationship. Primary deterrents to help-seeking included the normalization of IPV by survivors and providers alike, resulting in the stigmatization of disclosing experiences of IPV and ostracism of survivors and close relatives; another barrier was a general lack of awareness of existing support resources. Conclusion. Our findings reveal that there are numerous barriers to help-seeking and shortcomings of support resources. Survivors’ evaluations of support resources reveal that robust, community-level, and meso-level structural changes are required to promote help-seeking behaviors, including the destigmatization of IPV amongst providers and broader society and raising awareness of available support resources

Persistent COVID-19 symptoms 1 year after hospital discharge: A prospective multicenter study

Objective To determine the health status and exercise capacity of COVID-19 survivors one year after hospital discharge. Methods This multicenter prospective study included COVID-19 survivors 12 months after hospital discharge. Participants were randomly selected from a large cohort of COVID-19 patients who had been hospitalized until 15th April 2020. They were interviewed about persistent symptoms, underwent a physical examination, chest X-ray, and a 6-minute walk test (6MWT). A multivariate analysis was performed to determine the risk factors for persistent dyspnea. Results Of the 150 patients included, 58% were male and the median age was 63 (IQR 54-72) years. About 82% reported >= 1 symptoms and 45% had not recovered their physical health. The multivariate regression analysis revealed that the female sex, chronic obstructive pulmonary disease, and smoking were independent risk factors for persistent dyspnea. Approximately 50% completed less than 80% of the theoretical distance on the 6MWT. Only 14% had an abnormal X-ray, showing mainly interstitial infiltrates. A third of them had been followed up in outpatient clinics and 6% had undergone physical rehabilitation. Conclusion Despite the high rate of survivors of the first wave of the COVID-19 pandemic with persistent symptomatology at 12 months, the follow-up and rehabilitation of these patients has been really poor. Studies focusing on the role of smoking in the persistence of COVID-19 symptoms are lacking

Ipilmumab and cranial radiation in metastatic melanoma patients: a case series and review

Background: Ipilimumab improves survival in metastatic melanoma patients. This population frequently develops brain metastases, which have been associated with poor survival and are often treated with radiation. Therefore, outcomes following ipilimumab and radiation are of interest, especially given case reports and animal studies suggest combined treatment may generate abscopal responses outside the radiation field. Findings: We reviewed sixteen consecutive melanoma patients who received 1 to 8 courses of radiation, with a sum total of 51, systematically evaluating abscopal responses by following the largest extra-cranial lesion. We also reviewed other series of patients treated with cranial radiation and ipilimumab. Our patients received between 1 and 8 courses of cranial radiation. Four patients received radiation concurrently with ipilimumab. Median survival was 14 months, and 17 months in patients initially treated with SRS. Interestingly, after radiotherapy, there was a 2.8-fold increased likelihood that the rate of extra-cranial index lesion response improved that didn’t reach statistical significance (p = 0.07); this was more pronounced when ipilimumab was administered within three months of radiation (p < 0.01). Conclusion: Our experience and review of recently published series suggest ipilimumab and cranial radiation is well tolerated and can result in prolonged survival. Timing of ipilimumab administration in relation to radiation may impact outcomes. Additionally, our results demonstrate a trend for favorable systemic response following radiotherapy worthy of further evaluation in studies powered to detect potential synergies between radiation and immunotherapy

Coding variants in NOD-like receptors: An association study on risk and survival of colorectal cancer

Nod-like receptors (NLRs) are important innate pattern recognition receptors and regulators of inflammation or play a role during development. We systematically analysed 41 non-synonymous single nucleotide polymorphisms (SNPs) in 21 NLR genes in a Czech discovery cohort of sporadic colorectal cancer (CRC) (1237 cases, 787 controls) for their association with CRC risk and survival. Five SNPs were found to be associated with CRC risk and eight with survival at 5% significance level. In a replication analysis using data of two large genome-wide association studies (GWASs) from Germany (DACHS: 1798 cases and 1810 controls) and Scotland (2210 cases and 9350 controls) the associations found in the Czech discovery set were not confirmed. However, expression analysis in human gut-related tissues and immune cells revealed that the NLRs associated with CRC risk or survival in the discovery set were expressed in primary human colon or rectum cells, CRC tissue and/or cell lines, providing preliminary evidence for a potential involvement of NLRs in general in CRC development and/or progression. Most interesting was the finding that the enigmatic development-related NLRP5 (also known as MATER) was not expressed in normal colon tissue but in colon cancer tissue and cell lines. Future studies may show whether regulatory variants instead of coding variants might affect the expression of NLRs and contribute to CRC risk and survival