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https://www.readbyqxmd.com/read/29793198/assessment-of-cu-sub-lethal-toxicity-lc-50-in-the-cold-water-gorgonian-dentomuricea-meteor-under-a-deep-sea-mining-activity-scenario
#1
Inês Martins, António Godinho, Joana Goulart, Marina Carreiro-Silva
Previous aquaria-based experiments have shown dissolution and leaching of metals, especially copper (Cu), from the simulated sediment plumes generated during mining activities resulting in a pronounced increase of Cu contamination in the surrounding seawater. Metals are bioavailable to corals with food, through ingestion (particulate phase) and through tissue-facilitated transport (passive diffusion). With corals being particularly vulnerable to metal contamination, resuspension of metal-bearing sediments during mining activities represents an important ecological threat...
May 21, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29793163/rheological-characterisation-of-concentrated-domestic-slurry
#2
A K Thota Radhakrishnan, J B van Lier, F H L R Clemens
The much over-looked element in new sanitation, the transport systems which bridge the source and treatment facilities, is the focus of this study. The knowledge of rheological properties of concentrated domestic slurry is essential for the design of the waste collection and transport systems. To investigate these properties, samples were collected from a pilot sanitation system in the Netherlands. Two types of slurries were examined: black water (consisting of human faecal waste, urine, and flushed water from vacuum toilets) and black water with ground kitchen waste...
May 3, 2018: Water Research
https://www.readbyqxmd.com/read/29793114/soil-types-influence-the-fate-of-antibiotic-resistant-bacteria-and-antibiotic-resistance-genes-following-the-land-application-of-sludge-composts
#3
Junya Zhang, Qianwen Sui, Juan Tong, Hui Zhong, Yawei Wang, Meixue Chen, Yuansong Wei
Sewage sludge was generally considered a significant reservoir of antibiotic resistance genes (ARGs) and could enter agricultural systems as fertilizer after composting. Soil types and the discrepancy of sludge composts could have influenced the fate of antibiotic-resistant bacteria (ARB) following the land application of sludge composts, which deserved to be clarified. Thus, the fate of ARB and ARGs following the land application of three types of sludge composts (A, B, and C) to three different soils (red soil, loess, and black soil) was investigated...
May 21, 2018: Environment International
https://www.readbyqxmd.com/read/29792825/g1-s-transcription-factor-copy-number-is-a-growth-dependent-determinant-of-cell-cycle-commitment-in-yeast
#4
Savanna Dorsey, Sylvain Tollis, Jing Cheng, Labe Black, Stephen Notley, Mike Tyers, Catherine A Royer
To understand how commitment to cell division in late G1 phase (Start) is controlled by growth and nutrients in budding yeast, we determined the absolute concentrations of the G1/S transcription factors SBF (composed of Swi4 and Swi6) and MBF (composed of Mbp1 and Swi6), the transcriptional repressor Whi5, and the G1 cyclins, Cln1 and Cln2, in single live yeast cells using scanning number and brightness (sN&B) microscopy. In rich medium, Whi5, Mbp1, and Swi6 concentrations were independent of cell size, whereas Swi4 concentration doubled in G1 phase, leading to a size-dependent decrease in the Whi5/Swi4 ratio...
May 23, 2018: Cell Systems
https://www.readbyqxmd.com/read/29792784/xylaria-karyophthora-a-new-seed-inhabiting-fungus-of-greenheart-from-guyana
#5
Dillon R Husbands, Hector Urbina, Susy M Lewis, M Catherine Aime
In 2010-2011, a Xylaria sp. was documented growing from seeds of both Chlorocardium rodiei and Chlorocardium venenosum, a commercially valuable timber in Guyana. We conducted extensive surveys in 2015-2016, where this Xylaria sp. was observed fruiting from ca. 80% of dispersed seeds in both natural and logged forests in the Upper Demerara-Berbice, Potaro-Siparuni, and the Cuyuni-Mazaruni districts of central Guyana. Species of Xylaria are ascomycetous fungi generally characterized by black, carbonaceous, multiperitheciate ascoma commonly found growing on dead wood...
April 2, 2018: Mycologia
https://www.readbyqxmd.com/read/29792720/-experimental-processing-of-corrosion-casts-of-large-animal-organs
#6
R Pálek, V Liška, L Eberlová, H Mírka, M Svoboda, S Haviar, M Emingr, O Brzoň, P Mik, V Třeška
INTRODUCTION: Corrosion casts (CCs) are used for the visualization and assessment of hollow structures. CCs with filled capillaries enable (with the help of imaging methods) to obtain data for mathematical organ perfusion modelling. As the processing is more difficult in case of organs with greater volume of the vasculature, mainly organs from small animals have been cast up to now. The aim of this study was to optimize the protocol of corrosion casting of different organs of pig. Porcine organs are relatively easily accessible and frequently used in experimental medicine...
2018: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/29792719/-sinusoidal-obstruction-syndrome-induced-by-monocrotaline-in-a-large-animal-experiment-a-pilot-study
#7
R Pálek, V Liška, V Třeška, J Rosendorf, M Emingr, V Tégl, A Králíčková, K Bajcurová, M Jiřík, Z Tonar
INTRODUCTION: Sinusoidal obstruction syndrome (SOS) is a disease which is caused by toxic injury to hepatic sinusoids. This syndrome is most frequently caused by myeloablative radiochemotherapy in patients before hematopoietic stem cells transplantation and also by oxaliplatin mainly in patients with colorectal liver metastases. The aim of this study was to establish a large animal model of SOS, which would enable further study of this disease and facilitate translation of experimental outcomes into human medicine...
2018: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/29792579/effects-of-essential-oil-from-thymus-vulgaris-on-viability-and-inflammation-in-zebrafish-embryos
#8
Katherine M Polednik, Abby C Koch, Lisa K Felzien
Innate immunity provides the initial response against pathogens and includes the inflammatory response. Regulation of the initiation and duration of neutrophil and mononuclear cell influx during inflammation determines both the successfulness of pathogen elimination and the level of resulting tissue damage. Zebrafish embryos provide excellent opportunities to visualize the inflammatory response. Neutrophil granules may be stained with Sudan black, and variation in neutrophil counts may be used to monitor the level of the response...
May 24, 2018: Zebrafish
https://www.readbyqxmd.com/read/29792499/teacher-and-student-race-as-a-predictor-for-negative-feedback-during-instruction
#9
Terrance M Scott, Nicholas Gage, Regina Hirn, HyunSuk Han
There is a long and persistent gap between the academic achievement of White and Black students in America's schools. Further, Black students are suspended from school at a rate that is more than three times greater than White students. While there has been some suggestion that perhaps teacher-student racial matching may be part of a solution, the research does not currently provide adequate support for teacher race alone to be sufficiently effective. This study analyzed 41 Black and White teacher-student dyad mixes in elementary schools and another 41 in a high school to examine how teacher and student race interact in terms of teacher and student behaviors...
May 24, 2018: School Psychology Quarterly
https://www.readbyqxmd.com/read/29792487/ethnic-racial-typicality-and-its-relation-to-ethnic-identity-and-psychological-functioning
#10
Lauren L Mitchell, Ummul-Kiram Kathawalla, Alex A Ajayi, Jillian Fish, Sarah C Nelson, Lovey H M Peissig, Moin Syed
OBJECTIVES: Ethnic identity development is considered a central task of adolescence and emerging adulthood for ethnic minority individuals. Although the process of developing a coherent ethnic identity has received attention from researchers, there has been little work done to elucidate the content of ethnic identity. This study uses an inductive mixed-methods approach to address 1 aspect of ethnic identity content: typicality, or the degree of perceived similarity individuals feel to their ethnic-racial group...
May 24, 2018: Cultural Diversity & Ethnic Minority Psychology
https://www.readbyqxmd.com/read/29792484/-a-threat-on-the-ground-the-consequences-of-witnessing-stereotype-confirming-ingroup-members-in-interracial-interactions
#11
Valerie Jones Taylor, Randi L Garcia, J Nicole Shelton, Caitlyn Yantis
OBJECTIVES: Three studies explored interpersonal consequences of engaging in interracial interactions after witnessing racial ingroup members' stereotypical behavior. METHOD: Study 1 used experience-sampling methodology to assess ethnic minority students' (n = 119) intergroup anxiety, metastereotypes, and anticipatory behaviors following one of three types of interpersonal interactions: (a) a White person and a racial ingroup member who had behaved stereotypically, (b) a White person and a nonstereotypical ingroup member, or (c) neither...
May 24, 2018: Cultural Diversity & Ethnic Minority Psychology
https://www.readbyqxmd.com/read/29792302/blood-pressure-patterns-and-subsequent-coronary-artery-calcification-in-women-who-delivered-preterm-births
#12
Janet M Catov, Gabrielle G Snyder, Abigail Fraser, Cora E Lewis, Kiang Liu, Andrew D Althouse, Marnie Bertolet, Erica P Gunderson
Women who delivered preterm infants have excess cardiovascular disease, but vascular pathways linking these conditions are not understood. We considered that higher blood pressure over 25 years among women with preterm delivery may be associated with coronary artery calcification (CAC). The CARDIA study (Coronary Artery Risk Development in Young Adults) enrolled 1049 black and white women with births between 1985 and 2010 (n=272 ever preterm [<37 weeks]; n=777 all term births [≥37 weeks]). Latent mixture modeling identified blood pressure trajectories across 20 years, and these were related to CAC at years 20 and 25...
May 23, 2018: Hypertension
https://www.readbyqxmd.com/read/29792241/efficacy-of-digital-cbt-for-insomnia-to-reduce-depression-across-demographic-groups-a-randomized-trial
#13
Philip Cheng, Annemarie I Luik, Cynthia Fellman-Couture, Edward Peterson, Christine L M Joseph, Gabriel Tallent, Kieulinh Michelle Tran, Brian K Ahmedani, Timothy Roehrs, Thomas Roth, Christopher L Drake
BACKGROUND: Insomnia and depression are highly comorbid and mutually exacerbate clinical trajectories and outcomes. Cognitive behavioral therapy for insomnia (CBT-I) effectively reduces both insomnia and depression severity, and can be delivered digitally. This could substantially increase the accessibility to CBT-I, which could reduce the health disparities related to insomnia; however, the efficacy of digital CBT-I (dCBT-I) across a range of demographic groups has not yet been adequately examined...
May 24, 2018: Psychological Medicine
https://www.readbyqxmd.com/read/29791912/differential-expression-of-micrornas-in-breast-cancers-from-four-different-ethnicities
#14
Jennifer Pollard, Phil A Burns, Tom A Hughes, Colan Ho-Yen, J Louise Jones, Geetashree Mukherjee, Ganiat O Omoniyi-Esan, Nicholas Akinwale Titloye, Valerie Speirs, Abeer M Shaaban
INTRODUCTION: Breast cancer outcomes vary across different ethnic groups. MicroRNAs (miRs) are small non-coding RNA molecules that regulate gene expression across a range of pathologies, including breast cancer. The aim of this study was to evaluate the presence and expression of miRs in breast cancer samples from different ethnic groups. MATERIALS AND METHODS: Breast cancer tissue from 4 ethnic groups, i.e., British Caucasian, British Black, Nigerian, and Indian, were identified and matched for patients' age, tumour grade/type, and 10 × 10 µm sections taken...
May 23, 2018: Pathobiology: Journal of Immunopathology, Molecular and Cellular Biology
https://www.readbyqxmd.com/read/29791813/higher-lung-cancer-incidence-in-young-women-than-young-men-in-the-united-states
#15
Ahmedin Jemal, Kimberly D Miller, Jiemin Ma, Rebecca L Siegel, Stacey A Fedewa, Farhad Islami, Susan S Devesa, Michael J Thun
BACKGROUND: Previous studies showed a higher incidence of lung cancer among young women than among young men in the United States. Whether this pattern has continued in contemporary birth cohorts and, if so, whether it can be fully explained by sex differences in smoking behaviors are unknown. METHODS: We examined the nationwide population-based incidence of lung cancer according to sex, race or ethnic group, age group (30 to 34, 35 to 39, 40 to 44, 45 to 49, and 50 to 54 years), year of birth (1945 to 1980), and calendar period of diagnosis (1995-1999, 2000-2004, 2005-2009, and 2010-2014), and we calculated female-to-male incidence rate ratios...
May 24, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29791738/designing-testing-and-implementing-a-sustainable-nurse-home-visiting-program-right-home
#16
Sharon Goldfeld, Anna Price, Lynn Kemp
Nurse home visiting (NHV) offers a potential platform to both address the factors that limit access to services for families experiencing adversity and provide effective interventions. Currently, the ability to examine program implementation is hampered by a lack of detailed description of actual, rather than expected, program development and delivery in published studies. Home visiting implementation remains a black box in relation to quality and sustainability. However, previous literature would suggest that efforts to both report and improve program implementation are vital for NHV to have population impact and policy sustainability...
May 2018: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/29791563/insects-galls-of-pantanal-areas-in-the-state-of-mato-grosso-do-sul-brazil-characterization-and-occurrence
#17
Sharlene Ascendino, Valéria C Maia
Two Pantanal areas were investigated in Corumbá, Mato Grosso do Sul. The field works were carried out in five trails, in August and December/2011 and April/2012. Seventy-six gall morphotypes were found in 52 host plants, 22 of them were identified at species level and 30 at genus. Fabaceae, Myrtaceae and Sapindaceae were the plant families with the greatest richness of gall. Leaves were the plant organ with the greatest gall richness. Six gall shapes were found - globoid, lenticular, fusiform, cylindrical, conical, and marginal roll...
May 17, 2018: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29791476/identifying-county-characteristics-associated-with-resident-well-being-a-population-based-study
#18
Brita Roy, Carley Riley, Jeph Herrin, Erica S Spatz, Anita Arora, Kenneth P Kell, John Welsh, Elizabeth Y Rula, Harlan M Krumholz
BACKGROUND: Well-being is a positively-framed, holistic assessment of health and quality of life that is associated with longevity and better health outcomes. We aimed to identify county attributes that are independently associated with a comprehensive, multi-dimensional assessment of individual well-being. METHODS: We performed a cross-sectional study examining associations between 77 pre-specified county attributes and a multi-dimensional assessment of individual US residents' well-being, captured by the Gallup-Sharecare Well-Being Index...
2018: PloS One
https://www.readbyqxmd.com/read/29791458/incidence-of-lung-cancer-histologic-cell-types-according-to-neighborhood-factors-a-population-based-study-in-california
#19
Mindy C DeRouen, Lauren Hu, Meg McKinley, Kathleen Gali, Manali Patel, Christina Clarke, Heather Wakelee, Robert Haile, Scarlett Lin Gomez, Iona Cheng
BACKGROUND: The relationships between neighborhood factors (i.e., neighborhood socioeconomic status (nSES) and ethnic enclave) and histologic subtypes of lung cancer for racial/ethnic groups, particularly Hispanics and Asian American/Pacific Islanders (AAPIs), are poorly understood. METHODS: We conducted a population-based study of 75,631 Californians diagnosed with lung cancer from 2008 through2012. We report incidence rate ratios (IRRs) for lung cancer histologic cell-types by nSES among racial/ethnic groups (non-Hispanic (NH) Whites, NH Blacks, Hispanics and AAPIs) and according to Hispanic or Asian neighborhood ethnic enclave status among Hispanics and AAPIs, respectively...
2018: PloS One
https://www.readbyqxmd.com/read/29791455/national-patterns-of-physician-management-of-sleep-apnea-and-treatment-among-patients-with-hypertension
#20
Rebecca Robbins, Azizi Seixas, Girardin Jean-Louis, Sairam Parthasarathy, David M Rapoport, Gbenga Ogedegbe, Joseph A Ladapo
STUDY OBJECTIVES: Sleep apnea is associated with hypertension, and treatment may improve outcomes. We examine national burden of sleep apnea, rates of sleep apnea treatment, and whether racial/ethnic disparities exist among patients with hypertension. METHODS: Data from the National Ambulatory Medical Care Survey/National Hospital Ambulatory Medical Care Survey (NAMCS/NHAMCS), 2005-2012, were analyzed (N = 417,950). We identified hypertension patient visits where sleep apnea diagnosis or complaint was recorded...
2018: PloS One
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