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https://www.readbyqxmd.com/read/29469981/moisture-availability-limits-subalpine-tree-establishment
#1
Robert A Andrus, Brian J Harvey, Kyle C Rodman, Sarah J Hart, Thomas T Veblen
In the absence of broad-scale disturbance, many temperate coniferous forests experience successful seedling establishment only when abundant seed production coincides with favorable climate. Identifying the frequency of past establishment events and the climate conditions favorable for seedling establishment is essential to understanding how climate warming could affect the frequency of future tree establishment events and therefore future forest composition or even persistence of a forest cover. In the southern Rocky Mountains, USA, research on the sensitivity of establishment of Engelmann spruce (Picea engelmannii) and subalpine fir (Abies lasiocarpa)-two widely distributed, co-occurring conifers in North America-to climate variability has focused on the alpine treeline ecotone, leaving uncertainty about the sensitivity of these species across much of their elevation distribution...
February 22, 2018: Ecology
https://www.readbyqxmd.com/read/29469323/-molecular-epidemiology-of-cryptosporidium-infection-in-infants-with-diarrhea-in-wuhan-city
#2
Liu Xiao-Jie, Mao Tie-Bo, Wu Peng, Zhou Rui
OBJECTIVE: To understand the prevalence of Cryptosporidium infection in diarrhea infants under 2 years old in Wuhan City, so as to provide the epidemiological evidence for the prevention and treatment of cryptosporidiosis. METHODS: The fecal samples from infants under 2 years old with diarrhea were collected in Hubei General Hospital and Central South Hospital in Wuhan City, Hubei Province from August 2014 to July 2015. The fecal samples were stored in 2.5% potassium dichromate at 4 ℃ after filtered...
March 14, 2017: Zhongguo Xue Xi Chong Bing Fang Zhi za Zhi, Chinese Journal of Schistosomiasis Control
https://www.readbyqxmd.com/read/29466419/involvement-of-an-abi-like-protein-and-a-ca2-atpase-in-drought-tolerance-as-revealed-by-transcript-profiling-of-a-sweetpotato-somatic-hybrid-and-its-parents-ipomoea-batatas-l-lam-and-i-triloba-l
#3
Yufeng Yang, Yannan Wang, Licong Jia, Guohong Yang, Xinzhi Xu, Hong Zhai, Shaozhen He, Junxia Li, Xiaodong Dai, Na Qin, Cancan Zhu, Qingchang Liu
Previously, we obtained the sweetpotato somatic hybrid KT1 from a cross between sweetpotato (Ipomoea batatas (L.) Lam.) cv. Kokei No. 14 and its drought-tolerant wild relative I. triloba L. KT1 not only inherited the thick storage root characteristic of Kokei No. 14 but also the drought-tolerance trait of I. triloba L. The aim of this study was to explore the molecular mechanism of the drought tolerance of KT1. Four-week-old in vitro-grown plants of KT1, Kokei No. 14, and I. triloba L. were subjected to a simulated drought stress treatment (30% PEG6000) for 0, 6, 12 and 24 h...
2018: PloS One
https://www.readbyqxmd.com/read/29463547/doctors-language-tests-five-minutes-with-ceri-butler
#4
Abi Rimmer
No abstract text is available yet for this article.
February 20, 2018: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29462430/education-and-management-of-antimicrobials-amongst-nurses-in-africa-a-situation-analysis-an-infection-control-africa-network-ican-bsac-online-survey
#5
Andre N H Bulabula, Abi Jenkins, Shaheen Mehtar, Dilip Nathwani
Objectives: To assess the current involvement of nurses in the use and management of antimicrobials and their training in antimicrobial stewardship (AMS) across Africa. Methods: After a pilot study, an online questionnaire (SurveyMonkey) in both French and English was circulated via the Infection Control Africa Network (ICAN) mailing list to both members and non-members in Africa. The study was conducted from 26 May to 19 August 2016. Data were summarized in proportions and bar charts; proportions were compared using the χ2 test...
February 15, 2018: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29459432/junior-doctor-strikes-had-a-significant-impact-on-services-but-did-not-increase-deaths-study-finds
#6
Abi Rimmer
No abstract text is available yet for this article.
February 19, 2018: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29459267/ankle-brachial-index-and-cognitive-function-among-hispanics-latinos-results-from-the-hispanic-community-health-study-study-of-latinos
#7
Wassim Tarraf, Michael H Criqui, Matthew A Allison, Clinton B Wright, Myriam Fornage, Martha Daviglus, Robert C Kaplan, Sonia Davis, Alan S Conceicao, Hector M González
BACKGROUND AND AIMS: The Ankle-Brachial index (ABI) is a well-accepted measure of peripheral artery disease (arterial stenosis and stiffness) and has been shown to be associated with cognitive function and disorders; however, these associations have not been examined in Hispanics/Latinos. Therefore, we sought to examine relationships between ABI and cognitive function among diverse middle-age and older Hispanics/Latinos. METHODS: We used cross-sectional data on n = 7991 participants aged 45-74 years, without stroke or coronary heart disease, from the Hispanic Community Health Study/Study of Latinos...
February 9, 2018: Atherosclerosis
https://www.readbyqxmd.com/read/29459247/an-exploratory-factor-analysis-of-inflammatory-and-coagulation-markers-associated-with-femoral-artery-atherosclerosis-in-the-san-diego-population-study
#8
Natalie Suder Egnot, Emma Barinas-Mitchell, Michael H Criqui, Matthew A Allison, Joachim H Ix, Nancy S Jenny, Christina L Wassel
BACKGROUND AND AIMS: Several biomarkers of inflammation and coagulation have been implicated in lower extremity atherosclerosis. We utilized an exploratory factor analysis (EFA) to identify distinct factors derived from circulating inflammatory and coagulation biomarkers then examined the associations of these factors with measures of lower extremity subclinical atherosclerosis, including the ankle-brachial index (ABI), common and superficial femoral intima-media thickness (IMT), and atherosclerotic plaque presence, burden, and characteristics...
February 13, 2018: Thrombosis Research
https://www.readbyqxmd.com/read/29458718/frequent-diploidisation-of-haploid-armillaria-ostoyae-strains-in-an-outdoor-inoculation-experiment
#9
Renate Heinzelmann, Simone Prospero, Daniel Rigling
Very little is known about the biology and ecology of haploid Armillaria strains in nature. In this outdoor inoculation experiment, we assessed the virulence of six haploid Armillariaostoyae strains along with their diploid parent towards 2-year-old seedlings and 4-year-old saplings of Norway spruce (Picea abies), and determined their ability to colonise freshly cut stumps. As inoculum source an Armillaria-colonised hazelnut (Corylus avellana) stem segment was inserted into the soil substrate. Re-isolations from mycelial fans at the root collar of infected trees or stumps were made...
February 2018: Fungal Biology
https://www.readbyqxmd.com/read/29458713/ectomycorrhizal-fungi-increase-the-vitality-of-norway-spruce-seedlings-under-the-pressure-of-heterobasidion-root-rot-in-vitro-but-may-increase-susceptibility-to-foliar-necrotrophs
#10
S M Velmala, I Vuorinen, A Uimari, T Piri, T Pennanen
We tested if root colonisation by ectomycorrhizal fungi (EMF) could alter the susceptibility of Norway spruce (Picea abies) seedlings to root rot infection or necrotic foliar pathogens. Firstly, spruce seedlings were inoculated by various EMF and challenged with Heterobasidion isolates in triaxenix tubes. The ascomycete EMF Meliniomyces bicolor, that had showed strong antagonistic properties towards root rot causing Heterobasidion in vitro, protected spruce seedlings effectively against root rot. Secondly, spruce seedlings, inoculated with M...
February 2018: Fungal Biology
https://www.readbyqxmd.com/read/29458167/autosomal-dominant-deficiency-of-the-interleukin-17f-in-recurrent-aphthous-stomatitis-possible-novel-mutation-in-a-new-entity
#11
Alireza Zare Bidoki, Ahmad Massoud, Shamsolmoulouk Najafi, Mahsa Mohammadzadeh, Nima Rezaei
Recurrent Aphthous Stomatitis (RAS) is a common oral inflammatory disease with unknown pathogenesis. Although the immune system alterations could be involved in predisposition of individuals to oral candidiasis, precise etiologies of RAS have not been understood yet. A recent study showed that autosomal dominant IL17F deficiency could cause chronic mucocutaneous candidiasis. Considering the inflammatory nature of interleukin (IL)-17F and RAS, this study was performed to check any disease-associated mutation in a number of patients with RAS...
February 16, 2018: Gene
https://www.readbyqxmd.com/read/29454210/sunshine-duration-reconstruction-in-the-southeastern-tibetan-plateau-based-on-tree-ring-width-and-its-relationship-to-volcanic-eruptions
#12
Changfeng Sun, Yu Liu, Huiming Song, Qiufang Cai, Qiang Li, Lu Wang, Ruochen Mei, Congxi Fang
Sunshine is as essential as temperature and precipitation for tree growth, but sunshine duration reconstructions based on tree rings have not yet been conducted in China. In this study, we presented a 497-year sunshine duration reconstruction for the southeastern Tibetan Plateau using a width chronology of Abies forrestii from the central Hengduan Mountains. The reconstruction accounted for 53.5% of the variance in the observed sunshine during the period of 1961-2013 based on a stable and reliable linear regression...
February 14, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29453999/evolutionary-and-expression-analyses-reveal-a-pattern-of-ancient-duplications-and-functional-specializations-in-the-diversification-of-the-downstream-of-kinase-dok-genes
#13
Geoffrey Guittard, Pierre Pontarotti, Samuel Granjeaud, Magda Rodrigues, Laurent Abi-Rached, Jacques A Nunès
Downstream of Kinase (DOK) proteins represent a multigenic family of adaptors that includes negative regulators of immune cell signaling. Using phylogenetics and intron/exon structure data, we show here that the seven human DOK genes (DOK1 to DOK7) form three highly divergent groups that emerged before the protostome-deuterostome split: DOK1/2/3, DOK4/5/6, and DOK7. For two of these three groups (DOK1/2/3 and DOK4/5/6), further gene duplications occurred in vertebrates and so while chordates only have three DOK genes, vertebrates have seven DOK genes over the three groups...
February 14, 2018: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29453271/government-will-cap-legal-costs-of-clinical-negligence-claims
#14
Abi Rimmer
No abstract text is available yet for this article.
February 16, 2018: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29452424/age-related-changes-in-survival-and-turnover-rates-of-balsam-fir-abies-balsamea-l-mill-fine-roots
#15
Marek J Krasowski, Michael B Lavigne, Michael A Szuter, Jakub Olesinski, John A Kershaw, Elizabeth McGarrigle
Fine-root (≤2 mm) demographics change as forests age, but the direction and extent of change are unknown. Knowledge of the change and understanding of causes will improve predictions of climate change impacts. We used minirhizotrons at three young and three mature balsam fir (Abies balsamea (L.) Mill.) sites to measure median lifespan (MLS) for each site and for annual cohorts. We computed turnover rate from the inverse of MLS (Tinv) and calculated a second turnover rate (T) from annual mortality, annual production and previous year-end standing crop...
February 14, 2018: Tree Physiology
https://www.readbyqxmd.com/read/29451907/timber-isoscapes-a-case-study-in-a-mountain-area-in-the-italian-alps
#16
Yuri Gori, Ana Stradiotti, Federica Camin
BACKGROUND: Local timber is still one of the main sources of work and income for mountain communities. However, illegal logging is a major cause of deforestation in many countries and has significant impacts on local communities and biodiversity. Techniques for tracing timber would provide a useful tool to protect local timber industries and contribute to the fight against illegal logging. Although considerable progress has been made in food traceability, timber provenance is still a somewhat neglected research area...
2018: PloS One
https://www.readbyqxmd.com/read/29449286/doctors-working-for-medical-defence-organisation-face-redundancy
#17
Abi Rimmer
No abstract text is available yet for this article.
February 15, 2018: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29449209/don-t-distract-from-true-issues-facing-young-doctors-bma-tells-pay-body
#18
Abi Rimmer
No abstract text is available yet for this article.
February 15, 2018: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29449058/-epidemiology-of-lower-extremity-artery-disease
#19
Victor Aboyans, Marie-Antoinette Sevestre, Ileana Désormais, Philippe Lacroix, Gerry Fowkes, Michael H Criqui
It is estimated that more than 200 million individuals are affected by lower extremity artery disease (LEAD) worldwide. This prevalence has increased between 2000 and 2010 by 25%, especially in low/middle income countries. In France, about one million people are affected by this condition. Almost two-thirds of patients with LEAD are asymptomatic. This explains the interest of the measurement of the ankle-brachial index (ABI), an objective and harmless diagnostic tool. An ABI≤0.90 is considered as diagnostic for LEAD...
February 12, 2018: La Presse Médicale
https://www.readbyqxmd.com/read/29447429/arterial-stiffness-and-subendocardial-viability-ratio-in-patients-with-peripheral-arterial-disease
#20
Giovanni Scandale, Gabriel Dimitrov, Martino Recchia, Gianni Carzaniga, Marzio Minola, Edoardo Perilli, Maria Carotta, Mariella Catalano
Arterial stiffening is a hallmark of the aging process and atherosclerosis, including peripheral arterial disease (PAD). We investigated the associations between carotid-femoral pulse wave velocity (c-fPWV), augmentation index corrected for heart rate (Aix@HR75), ankle brachial index (ABI), and subendocardial viability ratio (SEVR), an indicator of cardiac perfusion. The c-fPWV, Aix@HR75, and SEVR was estimated using applanation tonometry. The ankle systolic pressure measurements for the calculation of the ABI were obtained using an 8-mHz Doppler probe...
February 15, 2018: Journal of Clinical Hypertension
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