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https://www.readbyqxmd.com/read/28531969/biogeographical-factors-affecting-the-distribution-of-stream-salamanders-on-the-cumberland-plateau-usa
#1
P R Gould, K K Cecala, S S Drukker, B A McKenzie, C Van de Ven
Geophysical and climate conditions play an important role in the distribution of organisms at both fine and broad scales. Headwater streams integrate changes at broad geographical scales and serve as important regions of nutrient processing and support high biodiversity. Stream salamanders are important members of headwater aquatic communities as both predators and prey. Combined with their biphasic life histories and physiological requirements, stream amphibians may serve as indicators for headwater stream conditions...
May 18, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28531960/multiple-stress-response-of-lowland-stream-benthic-macroinvertebrates-depends-on-habitat-type
#2
Daniel Graeber, Tinna M Jensen, Jes J Rasmussen, Tenna Riis, Peter Wiberg-Larsen, Annette Baattrup-Pedersen
Worldwide, lowland stream ecosystems are exposed to multiple anthropogenic stress due to the combination of water scarcity, eutrophication, and fine sedimentation. The understanding of the effects of such multiple stress on stream benthic macroinvertebrates has been growing in recent years. However, the interdependence of multiple stress and stream habitat characteristics has received little attention, although single stressor studies indicate that habitat characteristics may be decisive in shaping the macroinvertebrate response...
May 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28531955/influence-of-sediment-chemistry-and-sediment-toxicity-on-macroinvertebrate-communities-across-99-wadable-streams-of-the-midwestern-usa
#3
Patrick W Moran, Lisa H Nowell, Nile E Kemble, Barbara J Mahler, Ian R Waite, Peter C Van Metre
Simultaneous assessment of sediment chemistry, sediment toxicity, and macroinvertebrate communities can provide multiple lines of evidence when investigating relations between sediment contaminants and ecological degradation. These three measures were evaluated at 99 wadable stream sites across 11 states in the Midwestern United States during the summer of 2013 to assess sediment pollution across a large agricultural landscape. This evaluation considers an extensive suite of sediment chemistry totaling 274 analytes (polycyclic aromatic hydrocarbons, organochlorine compounds, polychlorinated biphenyls, polybrominated diphenyl ethers, trace elements, and current-use pesticides) and a mixture assessment based on the ratios of detected compounds to available effects-based benchmarks...
May 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28531947/shifts-in-the-relative-abundance-of-bacteria-after-wine-lees-derived-biochar-intervention-in-multi-metal-contaminated-paddy-soil
#4
Min Xu, Hongxia Xia, Jun Wu, Gang Yang, Xiaohong Zhang, Hong Peng, Xiaoyu Yu, Li Li, Hong Xiao, Hui Qi
The impact of biochar application on soil ecological functions depends on the diversity of soil conditions and of the feedstocks from which biochar is obtained. Moreover, little information is available on the effect of biochar on dynamic changes in microorganisms with the development of rice plants in multi-metal-contaminated paddy soil amended with wine-lees-derived biochar. In this paper, biochar obtained from the pyrolysis of wine lees at 600°C was used to investigate the potential role of biochar in maintaining soil ecological functions, with consideration of the alteration of the microbial population over periods of rice growth...
May 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28531882/%C3%AE-thromboglobulin-and-incident-cardiovascular-disease-risk-the-atherosclerosis-risk-in-communities-study
#5
Yasuhiko Kubota, Alvaro Alonso, Aaron R Folsom
INTRODUCTION: Although it has been suggested that increased concentrations of activated platelet biomarkers are associated with increased risk of incident cardiovascular disease (CVD) in the general population, evidence for this association is still controversial. Thus, we tested the hypothesis that activated platelets, measured by higher concentrations of β-thromboglobulin, are associated with increased risk of incident CVD (coronary heart disease, heart failure ischemic stroke, and atrial fibrillation)...
May 17, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28531859/the-role-of-conductive-materials-in-the-start-up-period-of-thermophilic-anaerobic-system
#6
Wangwang Yan, Nan Shen, Yeyuan Xiao, Yun Chen, Faqian Sun, Vinay Kumar Tyagi, Yan Zhou
The major obstacle for thermophilic anaerobic digestion (TAD) is the inhibited microorganism activity and process instability during the start-up period. This study proposed a strategy to accelerate and stabilize the thermophilic reactors start-up via adding conductive materials. The results show that methane production rate in conductive materials supplemented (CMS) reactors was almost two times higher than the control reactors. Caloramator sp., a candidate of electroactive bacteria, was significantly enriched in the carbon nano-tube (CNT) supplemented groups (12...
May 10, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28531857/post-carbon-removal-nitrifying-mbbr-operation-at-high-loading-and-exposure-to-starvation-conditions
#7
Bradley Young, Robert Delatolla, Kevin Kennedy, Edith LaFlamme, Alain Stintzi
This study investigates the performance of MBBR nitrifying biofilm post carbon removal at high loading and starvation conditions. The nitrifying MBBR, treating carbon removal lagoon effluent, achieved a maximum SARR of 2.13gN/m(2)d with complete conversion of ammonia to nitrate. The results also show the MBBR technology is capable of maintaining a stable biofilm under starvation conditions in systems that nitrify intermittently. The biomass exhibited a higher live fraction of total cells in the high loaded reactors (73-100%) as compared to the reactors operated in starvation condition (26-82%)...
May 5, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28531853/methane-production-in-an-anaerobic-osmotic-membrane-bioreactor-using-forward-osmosis-effect-of-reverse-salt-flux
#8
Sheng Li, Youngjin Kim, Sherub Phuntsho, Laura Chekli, Ho Kyong Shon, TorOve Leiknes, Noreddine Ghaffour
This study investigated the impact of reverse salt flux (RSF) on microbe community and bio-methane production in a simulated fertilizer driven FO-AnMBR system using KCl, KNO3 and KH2PO4 as draw solutes. Results showed that KH2PO4 exhibited the lowest RSF in terms of molar concentration 19.1mM/(m(2).h), while for KCl and KNO3 it was 32.2 and 120.8mM/(m(2).h), respectively. Interestingly, bio-methane production displayed an opposite order with KH2PO4, followed by KCl and KNO3. Pyrosequencing results revealed the presence of different bacterial communities among the tested fertilizers...
May 10, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28531653/characteristics-needs-and-experiences-of-u-s-veterans-on-a-specialized-prison-unit
#9
Jack Tsai, Elizabeth Goggin
The Veterans Service Unit (VSU) in Connecticut is one of several all-veterans prison units that are being created throughout the United States. This study examined the characteristics, needs, and experiences of veterans on the Connecticut VSU. This study utilized data from a quality improvement survey that was completed by 87 of the 110 veterans on the Connecticut VSU (79% response rate). The majority of veterans on the VSU were white, aged 41-56, never married, and had an honorable or general military discharge making them potentially eligible for Veterans Affairs (VA) healthcare upon release...
May 17, 2017: Evaluation and Program Planning
https://www.readbyqxmd.com/read/28531606/estimation-of-malnutrition-risk-in-cancer-patients-via-health-promotion-in-the-community
#10
Eftychia Papadopoulou, Giagkos Lavranos
No abstract text is available yet for this article.
June 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531605/estimation-of-malnutrition-prevalence-in-ibd-patients-in-the-community
#11
Anastasia Nicolaou, Giagkos Lavranos
No abstract text is available yet for this article.
June 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531552/the-role-of-next-generation-sequencing-in-infection-prevention-in-human-parainfluenza-virus-3-infections-in-immunocompromised-patients
#12
Atul Kothari, Mary J Burgess, Juan Carlos Rico Crescencio, Joshua L Kennedy, Jesse L Denson, Kurt C Schwalm, Ashley N Stoner, John C Kincaid, Faith E Davies, Darrell L Dinwiddie
BACKGROUND: Respiratory viral infections are a significant problem in patients with hematologic malignancies. We report a cluster of HPIV 3 infections in our myeloma patients, and describe the utility of next generation sequencing (NGS) to identify transmission linkages which can assist in infection prevention. OBJECTIVES: To evaluate the utility of NGS to track respiratory viral infection outbreaks and delineate between community acquired and nosocomial infections in our cancer units...
May 12, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28531549/impact-of-community-based-nurse-led-clinics-on-patient-outcomes-patient-satisfaction-patient-access-and-cost-effectiveness-a-systematic-review
#13
REVIEW
Sue Randall, Tonia Crawford, Jane Currie, Jo River, Vasiliki Betihavas
BACKGROUND: The role and scope of nursing practice has evolved in response to the dynamic needs of individuals, communities, and healthcare services. Health services are now focused on maintaining people in their communities, and keeping them out of hospital where possible. Community based nurse-led clinics are ideally placed to work towards this goal. The initial impetus for these services was to increase patient access to care, to provide a cost-effective and high quality streamlined service...
May 11, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/28531454/preliminary-validation-of-the-malay-yale-food-addiction-scale-factor-structure-and-item-analysis-in-an-obese-population
#14
Yogarabindranath Swarna Nantha, Norafidza Ashiquin Abd Patah, Mahalakshmi Ponnusamy Pillai
BACKGROUND AND AIMS: Researchers suggest that the rise in obesity rates may be explained by the addictive properties of certain types of food. In view of the growing obesity epidemic in South-East Asia, there is a need for a psychometric tool to assess the concept of food addiction amongst high-risk populations. The objective of this study is to translate the Yale Food Addiction Scale (YFAS) into the Malay language and subsequently validate its use in an obese population. METHODS: Between the year 2014 and 2015, a total of 250 obese adults were assessed for food addiction utilizing the Malay version of the YFAS at a primary care clinic...
December 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531292/perceived-social-support-and-its-impact-on-depression-and-health-related-quality-of-life-a-comparison-between-cancer-patients-and-general-population
#15
Hyosang Yoo, Dong Wook Shin, Ansuk Jeong, So Young Kim, Hyung-Kook Yang, Jun Suk Kim, Ji Eun Lee, Jae Hwan Oh, Eun-Cheol Park, Keeho Park, Jong-Hyock Park
Objective: It is well known that cancer patients' perception of social support is associated with their depressive symptoms and health-related quality of life. However, there have been little studies that compared the variates of cancer patients with the general population. We sought to compare differences in the level of perceived social support and the impact of perceived social support on depressive symptoms and health-related quality of life between cancer survivors and the general population...
May 20, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28531268/implementation-of-an-integrated-approach-to-the-national-hiv-aids-strategy-for-improving-human-immunodeficiency-virus-care-for-youths
#16
J Dennis Fortenberry, Linda J Koenig, Bill G Kapogiannis, Carrie L Jeffries, Jonathan M Ellen, Craig M Wilson
Importance: Youths aged 13 to 24 years old living with human immunodeficiency virus (HIV) are less likely than adults to receive the health and prevention benefits of HIV treatments, with only a small proportion having achieved sustained viral suppression. These age-related disparities in HIV continuum of care are owing in part to the unique developmental issues of adolescents and young adults as well as the complexity and fragmentation of HIV care and related services. This article summarizes a national, multiagency, and multilevel approach to HIV care for newly diagnosed youths designed to bridge some of these fragmentations by addressing National HIV/AIDS Strategy goals for people living with HIV...
May 22, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28531262/biogeography-of-cryoconite-bacterial-communities-on-glaciers-of-the-tibetan-plateau
#17
Yongqin Liu, Trista J Vick-Majors, John C Priscu, Tandong Yao, Shichang Kang, Keshao Liu, Ziyuang Cong, Jingbo Xiong, Yang Li
Cryoconite holes, water-filled pockets containing biological and mineralogical deposits that form on glacier surfaces, play important roles in glacier mass balance, glacial geochemistry, and carbon cycling. The presence of cryoconite material decreases surface albedo and accelerates glacier mass loss, a problem of particular importance in the rapidly melting Tibetan Plateau. No studies have addressed the microbial community composition of cryoconite holes and their associated ecosystem processes on Tibetan glaciers...
May 20, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28531243/increased-postural-sway-during-quiet-stance-as-a-risk-factor-for-prospective-falls-in-community-dwelling-elderly-individuals
#18
Jonas Johansson, Anna Nordström, Yngve Gustafson, Göran Westling, Peter Nordström
Objective: fall-related injuries constitute major health risks in older individuals, and these risks are projected to increase in parallel with increasing human longevity. Impaired postural stability is a potential risk factor related to falls, although the evidence is inconclusive, partly due to the lack of prospective studies. This study aimed to investigate how objective measures of postural sway predict incident falls. Design, setting and participants: this prospectively observational study included 1,877 community-dwelling individuals aged 70 years who participated in the Healthy Ageing Initiative between June 2012 and December 2015...
May 22, 2017: Age and Ageing
https://www.readbyqxmd.com/read/28531185/thermal-stability-and-kinetic-constants-for-129-variants-of-a-family-1-glycoside-hydrolase-reveal-that-enzyme-activity-and-stability-can-be-separately-designed
#19
Dylan Alexander Carlin, Siena Hapig-Ward, Bill Wayne Chan, Natalie Damrau, Mary Riley, Ryan W Caster, Bowen Bethards, Justin B Siegel
Accurate modeling of enzyme activity and stability is an important goal of the protein engineering community. However, studies seeking to evaluate current progress are limited by small data sets of quantitative kinetic constants and thermal stability measurements. Here, we report quantitative measurements of soluble protein expression in E. coli, thermal stability, and Michaelis-Menten constants (kcat, KM, and kcat/KM) for 129 designed mutants of a glycoside hydrolase. Statistical analyses reveal that functional Tm is independent of kcat, KM, and kcat/KM in this system, illustrating that an individual mutation can modulate these functional parameters independently...
2017: PloS One
https://www.readbyqxmd.com/read/28531184/bacarena-individual-based-metabolic-modeling-of-heterogeneous-microbes-in-complex-communities
#20
Eugen Bauer, Johannes Zimmermann, Federico Baldini, Ines Thiele, Christoph Kaleta
Recent advances focusing on the metabolic interactions within and between cellular populations have emphasized the importance of microbial communities for human health. Constraint-based modeling, with flux balance analysis in particular, has been established as a key approach for studying microbial metabolism, whereas individual-based modeling has been commonly used to study complex dynamics between interacting organisms. In this study, we combine both techniques into the R package BacArena (https://cran.r-project...
May 22, 2017: PLoS Computational Biology
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