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https://www.readbyqxmd.com/read/28624639/ozone-exposure-and-flux-based-response-relationships-with-photosynthesis-leaf-morphology-and-biomass-in-two-poplar-clones
#1
Bo Shang, Zhaozhong Feng, Pin Li, Xiangyang Yuan, Yansen Xu, Vicent Calatayud
Poplar clones 546 (P. deltoides cv. '55/56'×P. deltoides cv. 'Imperial') and 107 (P. euramericana cv. '74/76') were exposed to five ozone concentrations in 15 open-top chambers (OTCs). Both ozone exposure (AOT40, Accumulation Over a Threshold hourly ozone concentration of 40ppb) and flux-based (POD7, Phytotoxic Ozone Dose above an hourly flux threshold of 7nmol O3 m(-2) PLA (projected leaf area) s(-1)) response relationships were established with photosynthesis, leaf morphology and biomass variables. Increases in both metrics showed significant negative relationships with light-saturated photosynthesis rate, chlorophyll content, leaf mass per area, actual photochemical efficiency of PSII in the light and root biomass but not with stomatal conductance (gs), leaf and stem biomass...
June 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28616165/natural-expansion-versus-translocation-in-a-previously-human-persecuted-bird-of-prey
#2
Virginia Morandini, Elena de Benito, Ian Newton, Miguel Ferrer
Many threatened species in Europe have been expanding their distributions during recent decades owing to protection measures that overcome historical human activity that has limited their distributions. Range expansion has come about via two processes, natural expansion from existing range and reintroductions to new ranges. Reintroductions may prove to be a better way to establish populations because individuals are less subject to competitive relationships lowering breeding success than individuals expanding from existing populations...
June 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28612515/the-benefits-of-a-peer-assisted-mock-paces
#3
Sarim Siddiqui, Samee Siddiqui, Qamar Mustafa, Abeer F Rizvi, Ibtesham T Hossain
BACKGROUND: Peer-assisted learning (PAL) and mock examinations have been credited as effective teaching tools; however, there is a lack of research into their effectiveness in PACES (practical assessment of clinical examination skills). This study demonstrates an effective model and the benefits of PAL after its implementation in a mock PACES at Imperial College London. There is a lack of research into the effectiveness of PAL and mock examinations in PACES METHODS: A mock PACES was designed for fifth-year medical students...
June 14, 2017: Clinical Teacher
https://www.readbyqxmd.com/read/28604293/lives-in-the-asylum-record-1864-to-1910-utilising-large-data-collection-for-histories-of-psychiatry-and-mental-health
#4
Angela McCarthy, Catharine Coleborne, Maree O'Connor, Elspeth Knewstubb
This article examines the research implications and uses of data for a large project investigating institutional confinement in Australia and New Zealand. The cases of patients admitted between 1864 and 1910 at four separate institutions, three public and one private, provided more than 4000 patient records to a collaborative team of researchers. The utility and longevity of this data and the ways to continue to understand its significance and contents form the basis of this article's interrogation of data collection and methodological issues surrounding the history of psychiatry and mental health...
July 2017: Medical History
https://www.readbyqxmd.com/read/28592404/alcohol-flavoured-tobacco-products
#5
Robert K Jackler, Callie K VanWinkle, Isabela M Bumanlag, Divya Ramamurthi
BACKGROUND: In 2009, the Food and Drug Administration (FDA) banned characterising flavours in cigarettes (except for menthol) due to their appeal to teen starter smokers. In August 2016, the agency deemed all tobacco products to be under its authority and a more comprehensive flavour ban is under consideration. OBJECTIVES: To determine the scope and scale of alcohol-flavoured tobacco products among cigars & cigarillos, hookahs and electronic cigarettes (e-cigarettes)...
June 7, 2017: Tobacco Control
https://www.readbyqxmd.com/read/28588050/development-of-a-novel-maternal-fetal-physiologically-based-pharmacokinetic-model-i-insights-into-factors-that-determine-fetal-drug-exposure-through-simulations-and-sensitivity-analyses
#6
Zufei Zhang, Marjorie Z Imperial, Gabriela I Patilea-Vrana, Janak Wedagedera, Lu Gaohua, Jashvant D Unadkat
Determining fetal drug exposure (except at the time of birth) is not possible for both logistical and ethical reasons. Therefore, we developed a novel maternal-fetal physiologically based pharmacokinetic (m-f-PBPK) model to predict fetal exposure to drugs and populated this model with gestational age-dependent changes in maternal-fetal physiology. Then, we used this m-f-PBPK to: (1) perform a series of sensitivity analyses to quantitatively demonstrate the impact of fetoplacental metabolism and placental transport on fetal drug exposure for various drug dosing regimens administered to the mother; (2) predict the impact of gestational age on fetal drug exposure; and (3) demonstrate that a single umbilical venous: maternal plasma (UV:MP) ratio (even after multiple oral dose administration to steady-state) does not necessarily reflect fetal drug exposure...
June 6, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/28581022/a-multi-method-assessment-of-bone-maintenance-and-loss-in-an-imperial-roman-population-implications-for-future-studies-of-age-related-bone-loss-in-the-past
#7
Patrick Beauchesne, Sabrina C Agarwal
OBJECTIVES: One of the hallmarks of contemporary osteoporosis and bone loss is dramatically higher prevalence of loss and fragility in females post-menopause. In contrast, bioarchaeological studies of bone loss have found a greater diversity of age- and sex-related patterns of bone loss in past populations. We argue that the differing findings may relate to the fact that most studies use only a single methodology to quantify bone loss and do not account for the heterogeneity and complexity of bone maintenance across the skeleton and over the life course...
June 5, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28573911/framing-the-transit-expeditionary-culture-and-identities-in-lieutenant-e-j-w-noble-s-caricatures-of-the-1874-transit-of-venus-expedition-to-honolulu
#8
Rebekah Higgitt
Making use of a source previously unknown to historians, this article sheds new light on the British expedition to the Sandwich Islands to observe the 1874 transit of Venus. This source, a series of caricature drawings that follow the expedition from departure to return, gives insight into expeditionary culture and the experience of a previously unremarked member of this astronomical expedition, Evelyn J.W. Noble, a career officer of the Royal Marine Artillery. It also reveals overlapping military, scientific and masculine identities, developed in dialogue with, and often deliberately subverting, more public accounts...
June 2, 2017: Annals of Science
https://www.readbyqxmd.com/read/28567483/-gender-norms-and-expertise-constructions-of-gender-in-psychiatrists-legal-opinions-in-imperial-germany-1871-1914
#9
Marcus B Carrier
This article focuses on notions of gender in psychiatrists' expert opinions written for lawsuits during the German Empire, 1871-1914. Four different narratives concerning gender can be identified in these testimonies. On the one hand, the reports describe women and men who did not conform to the gender stereotypes of the time. The psychiatrists found the non-conformist defendants to be of unsound mind. On the other hand, women and men who did conform to the gender stereotypes were also described. In those cases, however, "feminine" women were certified insane, whereas "masculine" men were accused of simulating a mental disease in order to avoid punishment...
May 31, 2017: NTM
https://www.readbyqxmd.com/read/28554914/a-bespoke-mobile-application-for-the-longitudinal-assessment-of-depression-and-mood-during-pregnancy-protocol-of-a-feasibility-study
#10
Jose Salvador Marcano Belisario, Kevin Doherty, John O'Donoghue, Paul Ramchandani, Azeem Majeed, Gavin Doherty, Cecily Morrison, Josip Car
INTRODUCTION: Depression is a common mental health disorder during pregnancy, with important consequences for mothers and their children. Despite this, it goes undiagnosed and untreated in many women attending antenatal care. Smartphones could help support the prompt identification of antenatal depression in this setting. In addition, these devices enable the implementation of ecological momentary assessment techniques, which could be used to assess how mood is experienced during pregnancy...
May 29, 2017: BMJ Open
https://www.readbyqxmd.com/read/28521654/the-chemistry-department-at-imperial-college-london-a-history-1845-2000
#11
William H Brock
No abstract text is available yet for this article.
May 19, 2017: Ambix
https://www.readbyqxmd.com/read/28505340/members-of-microvirga-and-bradyrhizobium-genera-are-native-endosymbiotic-bacteria-nodulating-lupinus-luteus-in-northern-tunisian-soils
#12
Abdelhakim Msaddak, Mokhtar Rejili, David Durán, Luis Rey, Juan Imperial, Jose Manuel Palacios, Tomas Ruiz-Argüeso, Mohamed Mars
The genetic diversity of bacterial populations nodulating Lupinus luteus (yellow lupine) in Northern Tunisia was examined. Phylogenetic analyses of 43 isolates based on recA and gyrB partial sequences grouped them in three clusters, two of which belong to genus Bradyrhizobium (41 isolates) and one, remarkably, to Microvirga (2 isolates), a genus never previously described as microsymbiont of this lupine species. Representatives of the three clusters were analysed in-depth by multilocus sequence analysis of five housekeeping genes (rrs, recA, glnII, gyrB and dnaK)...
June 1, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28502640/a-cohort-study-reveals-myocarditis-to-be-a-rare-and-life-threatening-presentation-of-large-vessel-vasculitis
#13
Katie Bechman, Deepa Gopalan, Petros Nihoyannopoulos, Justin C Mason
BACKGROUND: The predominant forms of adult large vessel vasculitis (LVV) are giant cell arteritis (GCA) and Takayasu arteritis (TA). Cardiac involvement in LVV is a cause of morbidity and mortality, particularly in TA. Cardiac failure is most commonly secondary to uncontrolled arterial hypertension or myocardial ischaemia. Pulmonary hypertension and aortic valve incompetence following ascending aortic dilatation represent other serious cardiovascular complications. However, cardiac failure as a consequence of myocarditis is rarely reported, principally in single case reports or in autopsy studies...
April 4, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28501427/ethnopharmacological-approach-to-the-herbal-medicines-of-the-elements-alpha-to-delta-in-nikolaos-myrepsos-dynameron-part-ii
#14
E Valiakos, M Marselos, N Sakellaridis, Th Constantinidis, H Skaltsa
ETHNOPHARMACOLOGICAL RELEVANCE: Dynameron is a Byzantine medical compendium, divided into 24 sections, the "Elements", containing 2667 recipes, most of which inherited by previous physicians of the classic ancient Greek and Hellenistic, and imperial Roman periods. AIM OF THE STUDY: In continuation to our previous study concerning the first and largest chapter of the "Element Alpha" of Nikolaos Myrepsos׳ Dynameron (Valiakos et al., 2015), this paper focuses on the plants quoted in the recipes of the eight following chapters entitled "About Salts", "About Honeypacks" and "About Spreads", all belonging to the same "Element Alpha"; "About Antitussives" and "About Suppositories" belonging to the "Element Beta"; "About women's Cathartics" belonging to the "Element Gamma"; "About Drossaton" and "About Diachrisma", both belonging to the "Element Delta"...
May 10, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28403736/make-health-and-safety-a-part-of-global-struggles-against-imperialism-racism-and-other-oppressions
#15
Deborah Deeg Gold
Deborah "Deeg" Gold was presented in November 2016 with the Alice Hamilton Award of the Occupational Health and Safety Section of the American Public Health Association. Deeg worked for more than 20 years for the California Division of Occupational Safety and Health (Cal/OSHA) as a field compliance officer, senior industrial hygienist, and then became the agency's Deputy Chief for Health. Prior to joining Cal/OSHA, Deeg Gold was a rank-and-file worker health and safety activist in her union. She is also an activist on many social justice issues, including opposing the death penalty and is a queer activist...
May 2017: New Solutions: a Journal of Environmental and Occupational Health Policy: NS
https://www.readbyqxmd.com/read/28397550/the-pillar-of-metropolitan-greatness-the-long-making-of-archeological-objects-in-paris-1711-2001
#16
Stéphane Van Damme
Over three centuries after the 1711 discovery in the choir of Notre-Dame in Paris of a square-section stone bas-relief (the Pillar of the Boatmen) with depictions of several deities, both Gaulish and Roman, the blocks comprising it were analyzed as a symbol of Parisian power, if not autonomy, vis-à-vis the Roman Empire. Variously considered as local, national, or imperial representations, the blocks were a constant object of admiration, interrogation, and speculation among antiquarians of the Republic of Letters...
April 1, 2017: History of Science; An Annual Review of Literature, Research and Teaching
https://www.readbyqxmd.com/read/28395058/diagnostic-utility-of-lymphoid-enhancer-binding-factor-1-immunohistochemistry-in-small-b-cell-lymphomas
#17
Thomas Menter, Pritesh Trivedi, Raida Ahmad, Rashpal Flora, Stephan Dirnhofer, Alexandar Tzankov, Kikkeri N Naresh
Objectives: Recent studies have shown that lymphoid enhancer binding factor 1 (LEF1) is a useful marker for chronic lymphocytic B-cell leukemia (CLL)/small lymphocytic lymphoma. Yet, it is not still being widely used in a diagnostic setting. In this study, we document the experience with LEF1 immunohistochemistry during routine diagnostics. Methods: In total, 191 B-cell lymphoma cases from Hammersmith Hospital, Imperial College NHS Healthcare Trust (London, UK) were investigated by immunohistochemistry for LEF1 during routine diagnostic workup...
March 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28391972/neuroaxonal-dystrophy-in-a-flock-of-pied-imperial-pigeons-ducula-bicolor
#18
M Barrows, R Killick, C Day, R Saunders, K Baiker, L Ressel, D Denk
Five juvenile pied imperial pigeons (Ducula bicolor) presented with neurological signs including torticollis, ataxia and poor flying ability. All were humanely destroyed and submitted for post-mortem examination. Microscopically, the most significant findings were in the brain and spinal cord. Spheroid formation was evident within the medulla, pons, diencephalon, cortical grey and subcortical white matter, spinal cord white and grey matter and the granular and molecular cell layers of the cerebellum. There was no evidence of associated inflammation...
April 6, 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/28391832/2-picolylamine-derivatization-for-high-sensitivity-detection-of-abscisic-acid-in-apicomplexan-blood-infecting-parasites
#19
Ernest Moles, Josep Marcos, Santiago Imperial, Oscar J Pozo, Xavier Fernàndez-Busquets
We have developed a new liquid chromatography-electrospray ionization tandem mass spectrometry methodology based on 2-picolylamine derivatization and positive ion mode detection for abscisic acid (ABA) identification. The selected reaction leads to the formation of an amide derivative which contains a highly active pyridyl group. The enhanced ionization allows for a 700-fold increase over commonly monitored unmodified ABA, which in turn leads to excellent limits of detection and quantification values of 0.03 and 0...
June 1, 2017: Talanta
https://www.readbyqxmd.com/read/28391339/mycophenolate-mofetil-therapy-in-immunoglobulin-a-nephropathy-histological-changes-after-treatment
#20
Hannah Beckwith, Nick Medjeral-Thomas, Jack Galliford, Megan Griffith, Jeremy Levy, Liz Lightstone, Andrew Palmer, Candice Roufosse, Charles Pusey, H Terence Cook, Tom Cairns
Background: Endocapillary hypercellularity independently predicts renal outcome in immunoglobulin A nephropathy (IgAN). Mycophenolate mofetil (MMF) treatment is offered to patients presenting to the Imperial College Renal and Transplant Centre with IgAN and histological evidence of endocapillary hypercellularity. Clinical trials of MMF in IgAN have been inconclusive and have been limited by a lack of specific histological inclusion and exclusion criteria when recruiting patients. Evidence of histological improvement following MMF treatment would support its therapeutic use...
January 1, 2017: Nephrology, Dialysis, Transplantation
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