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C. Little

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https://www.readbyqxmd.com/read/28545216/multi-proxy-evidence-for-decreased-terrestrial-contribution-to-sedimentary-organic-matter-in-coastal-areas-of-the-east-china-sea-during-the-past-100years
#1
Yunyun Cao, Lei Xing, Ting Zhang, Wen-Hsuan Liao
Little is known about temporal changes in sedimentary organic matter (OM) in the East China Sea (ECS) due to the lack of continuous high-resolution records. In this study, we used a multi-proxy approach to reconstruct sedimentary OM variations over the past 100years from three sediment cores collected from the coastal areas of the ECS. For the three cores, total organic carbon (TOC) normalized concentrations of phytoplankton biomarkers (brassicasterol+dinosterol+alkenones) and a marine archaea biomarker (crenarchaeol) showed gradual increases over the past 100years with a greater increase after the 1980s...
May 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28545168/reliability-of-the-triple-timed-up-and-go-3tug-test
#2
Donald B Sanders, Jeffrey T Guptill, Kathy L Aleš, Lisa D Hobson-Webb, David P Jacobus, Riaz Mahmood, Janice M Massey, Melissa M Pittman, Kristi Prather, Shruti M Raja, Eric Yow, Vern C Juel
INTRODUCTION: We report the reliability of a new measure, the Triple Timed-Up-and-Go (3TUG) test, for assessing clinical function in patients with Lambert-Eaton myasthenia (LEM). METHODS: Intra-rater reproducibility and inter-rater agreement of the 3TUG were assessed in 25 control subjects, 24 patients with non-LEM neuromuscular disease and 12 LEM patients. The coverage probability (CP) method was the primary measure of reproducibility and agreement. The a priori acceptable range was <20% difference in 3TUG times and a CP ≥0...
May 25, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28544995/intrauterine-exposure-to-tobacco-and-executive-functioning-in-high-school
#3
Ruth Rose-Jacobs, Mark A Richardson, Kathryn Buchanan-Howland, Clara A Chen, Howard Cabral, Timothy C Heeren, Jane Liebschutz, Leah Forman, Deborah A Frank
BACKGROUND: Executive functioning (EF), an umbrella construct encompassing gradual maturation of cognitive organization/management processes, is important to success in multiple settings including high school. Intrauterine tobacco exposure (IUTE) correlates with negative cognitive/behavioral outcomes, but little is known about its association with adolescent EF and information from real-life contexts is sparse. We evaluated the impact of IUTE on teacher-reported observations of EF in urban high school students controlling for covariates including other intrauterine and adolescent substance exposures...
May 10, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28544424/increasing-carbon-discrimination-rates-and-depth-of-water-uptake-favor-the-growth-of-mediterranean-evergreen-trees-in-the-ecotone-with-temperate-deciduous-forests
#4
Adrià Barbeta, Josep Peñuelas
Tree populations at the low-altitudinal or -latitudinal limits of species' distributional ranges are predicted to retreat toward higher altitudes and latitudes to track the ongoing changes in climate. Studies have focused on the climatic sensitivity of the retreating species, whereas little is known about the potential replacements. Competition between tree species in forest ecotones will likely be strongly influenced by the ecophysiological responses to heat and drought. We used tree-ring widths and δ(13) C and δ(18) O chronologies to compare the growth rates and long-term ecophysiological responses to climate in the temperate-Mediterranean ecotone formed by the deciduous Fagus sylvatica and the evergreen Quercus ilex at low altitudes and at the southern latitudinal limit of F...
May 22, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28544154/floral-nectar-of-the-obligate-outcrossing-canavalia-gladiata-jacq-dc-fabaceae-contains-only-one-predominant-protein-a-class-iii-acidic-chitinase
#5
Xue-Long Ma, Richard I Milne, Hong-Xia Zhou, Jiang-Yu Fang, Hong-Guang Zha
Floral nectar can affect the fitness of insect-pollinated plants, through both attraction and manipulation of pollinators. Self-incompatible insect-pollinated plants receive more insect visits than their self-compatible relatives, and the nectar of such species might face more risk to be infested by the pathogens carried by pollinators than self-compatible plants. Proteins in nectar (nectarins) play an important role in the protection of nectar, but little is known regarding nectarins in self-incompatible species...
May 20, 2017: Plant Biology
https://www.readbyqxmd.com/read/28544107/the-relationship-between-sleep-disturbance-and-glycemic-control-in-adults-with-type-2-diabetes-an-integrative-review
#6
REVIEW
Bingqian Zhu, Patricia E Hershberger, Mary C Kapella, Cynthia Fritschi
AIMS AND OBJECTIVES: To explore and synthesize current research to assess the state of science about the relationship between sleep disturbance and glycemic control in adults with type 2 diabetes (T2DM). BACKGROUND: Sleep disturbance is suggested a risk factor for T2DM. Diabetes alone is a leading cause of death, but when coupled with sleep disturbance poses additional health risks. However, little is known about the relationship between sleep disturbance and glycemic control in people with overt diabetes...
May 25, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/28544045/are-there-sensitive-periods-when-child-maltreatment-substantially-elevates-suicide-risk-results-from-a-nationally-representative-sample-of-adolescents
#7
Stephanie H Gomez, Jenny Tse, Yan Wang, Brianna Turner, Alexander J Millner, Matthew K Nock, Erin C Dunn
BACKGROUND: Although child maltreatment is a well documented risk factor for suicidal behavior, little is known about whether the timing of child maltreatment differentially associates with risk of suicidal ideation, suicide plans, or suicide attempts. The goal of this study was to examine whether a first exposure to physical or sexual abuse during specific developmental periods significantly elevated risk for suicidal behavior in adolescents. METHODS: Data came from the National Comorbidity Survey Adolescent Supplement, a population-based sample of US adolescents aged 13-18 years old (n = 9,272)...
May 23, 2017: Depression and Anxiety
https://www.readbyqxmd.com/read/28543911/polymorphism-of-tlr5-rs5744174-is-associated-with-disease-progression-in-chinese-patients-with-chronic-hbv-infection
#8
Lina Cao, Tong Zhang, Junping Zhu, Aixin Li, Kai Zheng, Nan Zhang, Bin Su, Wei Xia, Hao Wu, Ning Li, Qiushui He
Toll-like receptors (TLRs) play a crucial role in innate and adaptive immunity, protecting the host from viral pathogens. Studies have implicated that TLR5 is associated with various diseases such as autoimmune and inflammation related diseases. However, little is known about the relationship between TLR5 and hepatitis B virus (HBV) infection. We studied the effect of TLR5 gene polymorphisms on susceptibility to and disease progression of chronic hepatitis B (CHB) infection in Chinese. Blood samples were taken from 636 patients with CHB, HBV-related liver cirrhosis (LC) or hepatocellular carcinoma (HCC) and 273 controls...
May 25, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28543869/the-impact-on-relationships-following-disclosure-of-transgenderism-a-wife-s-tale
#9
C Watts, P Watts, E Collier, R Ashmore
WHAT IS KNOWN ON THE SUBJECT?: The experiences of transgender people are becoming increasingly more visible in popular culture, biographical literature and the media. The topic has received little attention within the psychiatric and mental health nursing literature. There is a paucity of literature exploring the impact on relationships following a disclosure of transgenderism. WHAT DOES THIS PAPER ADD TO EXISTING KNOWLEDGE?: A narrative account of the consequences for the wife of one transwoman and their relationships with friends and family following the disclosure of transgenderism...
June 2017: Journal of Psychiatric and Mental Health Nursing
https://www.readbyqxmd.com/read/28543616/experimental-soil-warming-shifts-the-fungal-community-composition-at-the-alpine-treeline
#10
Emily F Solly, Björn D Lindahl, Melissa A Dawes, Martina Peter, Rômulo C Souza, Christian Rixen, Frank Hagedorn
Increased CO2 emissions and global warming may alter the composition of fungal communities through the removal of temperature limitation in the plant-soil system, faster nitrogen (N) cycling and changes in the carbon (C) allocation of host plants to the rhizosphere. At a Swiss treeline featuring Larix decidua and Pinus uncinata, the effects of multiple years of CO2 enrichment and experimental soil warming on the fungal community composition in the organic horizons were analysed using 454-pyrosequencing of ITS2 amplicons...
May 22, 2017: New Phytologist
https://www.readbyqxmd.com/read/28543423/research-with-pregnant-women-new-insights-on-legal-decision-making
#11
Anna C Mastroianni, Leslie Meltzer Henry, David Robinson, Theodore Bailey, Ruth R Faden, Margaret O Little, Anne Drapkin Lyerly
U.S. researchers and scholars often point to two legal factors as significant obstacles to the inclusion of pregnant women in clinical research: the Department of Health and Human Services' regulatory limitations specific to pregnant women's research participation and the fear of liability for potential harm to children born following a pregnant woman's research participation. This article offers a more nuanced view of the potential legal complexities that can impede research with pregnant women than has previously been reflected in the literature...
May 2017: Hastings Center Report
https://www.readbyqxmd.com/read/28543266/evaluation-of-pre-reconstruction-interpolation-methods-for-iterative-reconstruction-of-radial-k-space-data
#12
Ye Tian, K C Erb, Ganesh Adluru, Devavrat Likhite, Apoorva Pedgaonkar, Michael Blatt, Srikant Kamesh Iyer, John Roberts, Edward DiBella
PURPOSE: To evaluate the use of three different pre-reconstruction interpolation methods to convert non-Cartesian k-space data to Cartesian samples such that iterative reconstructions can be performed more simply and more rapidly. METHODS: Phantom as well as cardiac perfusion radial datasets were reconstructed by four different methods. Three of the methods used pre-reconstruction interpolation once followed by a fast Fourier transform (FFT) at each iteration. The methods were: bilinear interpolation of nearest-neighbor points (BINN), 3-point interpolation, and a multi-coil interpolator called GRAPPA Operator Gridding (GROG)...
May 19, 2017: Medical Physics
https://www.readbyqxmd.com/read/28543227/implant-dentistry-in-australia-the-present-and-future-a-survey-of-australian-dentists-and-specialists
#13
Y N Guo, J E Dudley, R M Logan, L C Richards
BACKGROUND: In recent years, implant dentistry has become a routine part of many general dental practices in Australia. However, there has been little information regarding its extent and scope. This investigation aimed to address this issue by surveying Australian general dental practitioners (GDPs) and relevant specialists regarding their practice of implant dentistry. METHODS: Anonymous electronic surveys were designed online using SurveyMonkey(™) and delivered to the following professional bodies: all seven State/Territory branches of the Australian Dental Association, the Australian and New Zealand Academy of Periodontists, the Australian and New Zealand Academy of Oral and Maxillofacial Surgeons, and prosthodontist members of the Australian Prosthodontic Society...
May 25, 2017: Australian Dental Journal
https://www.readbyqxmd.com/read/28542920/relating-quantitative-variation-within-a-behavior-to-variation-in-transcription
#14
Kyle M Benowitz, Elizabeth C McKinney, Christopher B Cunningham, Allen J Moore
Many studies have shown that variation in transcription is associated with changes in behavioral state, or with variation within a state, but little has been done to address if the same genes are involved in both. Here we investigate the transcriptional basis of variation in parental provisioning using two species of burying beetle, Nicrophorus orbicollis and Nicrophorus vespilloides. We used RNA-seq to compare transcription in parents that provided high amounts of provisioning behavior versus low amounts in males and females of each species...
May 23, 2017: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/28542850/reproductive-biology-of-black-seabream-acanthopagrus-schlegelii-threadfin-porgy-evynnis-cardinalis-and-red-pargo-pagrus-major-in-the-northern-south-china-sea-with-consideration-of-fishery-status-and-management-needs
#15
C S W Law, Y Sadovy de Mitcheson
The reproductive biology of three commercially significant seabream species (family: Sparidae) Acanthopagrus schlegelii, Evynnis cardinalis and Pagrus major, taken from Hong Kong and adjacent northern South China Sea (SCS) waters, were investigated for their sexual patterns, spawning seasons, length at maturity and exploitation in relation to their conservation and management status. Histological analysis showed E. cardinalis and P. major to be functionally gonochoristic, the latter having a bisexual juvenile stage and being a rudimentary hermaphrodite...
May 23, 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28542726/the-association-between-psychotic-experiences-and-disability-results-from-the-who-world-mental-health-surveys
#16
F Navarro-Mateu, J Alonso, C C W Lim, S Saha, S Aguilar-Gaxiola, A Al-Hamzawi, L H Andrade, E J Bromet, R Bruffaerts, S Chatterji, L Degenhardt, G de Girolamo, P de Jonge, J Fayyad, S Florescu, O Gureje, J M Haro, C Hu, E G Karam, V Kovess-Masfety, S Lee, M E Medina-Mora, A Ojagbemi, B-E Pennell, M Piazza, J Posada-Villa, K M Scott, J C Stagnaro, M Xavier, K S Kendler, R C Kessler, J J McGrath
OBJECTIVE: While psychotic experiences (PEs) are known to be associated with a range of mental and general medical disorders, little is known about the association between PEs and measures of disability. We aimed to investigate this question using the World Mental Health surveys. METHOD: Lifetime occurrences of six types of PEs were assessed along with 21 mental disorders and 14 general medical conditions. Disability was assessed with a modified version of the WHO Disability Assessment Schedule...
May 25, 2017: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/28542558/improvement-of-non-key-traits-in-radiata-pine-breeding-programme-when-long-term-economic-importance-is-uncertain
#17
Yongjun Li, Heidi Dungey, Alvin Yanchuk, Luis A Apiolaza
Diameter at breast height (DBH), wood density (DEN) and predicted modulus of elasticity (PME) are considered as 'key traits' (KT) in the improvement in radiata pine breeding programmes in New Zealand. Any other traits which are also of interest to radiata pine breeders and forest growers are called 'non-key traits' (NKTs). External resin bleeding (ERB), internal checking (IC), number of heartwood rings (NHR) are three such non-key traits which affect wood quality of radiata pine timber. Economic importance of the KTs and NKTs is hard to define in radiata pine breeding programmes due to long rotation period...
2017: PloS One
https://www.readbyqxmd.com/read/28542477/mycobacterium-tuberculosis-arrests-host-cycle-at-the-g1-s-transition-to-establish-long-term-infection
#18
Bridgette M Cumming, Md Aejazur Rahman, Dirk A Lamprecht, Kyle H Rohde, Vikram Saini, John H Adamson, David G Russell, Adrie J C Steyn
Signals modulating the production of Mycobacterium tuberculosis (Mtb) virulence factors essential for establishing long-term persistent infection are unknown. The WhiB3 redox regulator is known to regulate the production of Mtb virulence factors, however the mechanisms of this modulation are unknown. To advance our understanding of the mechanisms involved in WhiB3 regulation, we performed Mtb in vitro, intraphagosomal and infected host expression analyses. Our Mtb expression analyses in conjunction with extracellular flux analyses demonstrated that WhiB3 maintains bioenergetic homeostasis in response to available carbon sources found in vivo to establish Mtb infection...
May 22, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28542430/ros-regulation-of-axonal-mitochondrial-transport-is-mediated-by-ca2-and-jnk-in-drosophila
#19
Pin-Chao Liao, Lauren C Tandarich, Peter J Hollenbeck
Mitochondria perform critical functions including aerobic ATP production and calcium (Ca2+) homeostasis, but are also a major source of reactive oxygen species (ROS) production. To maintain cellular function and survival in neurons, mitochondria are transported along axons, and accumulate in regions with high demand for their functions. Oxidative stress and abnormal mitochondrial axonal transport are associated with neurodegenerative disorders. However, we know little about the connection between these two...
2017: PloS One
https://www.readbyqxmd.com/read/28542416/soil-texture-analysis-revisited-removal-of-organic-matter-matters-more-than-ever
#20
Johannes Lund Jensen, Per Schjønning, Christopher W Watts, Bent T Christensen, Lars J Munkholm
Exact estimates of soil clay (<2 μm) and silt (2-20 μm) contents are crucial as these size fractions impact key soil functions, and as pedotransfer concepts based on clay and silt contents are becoming increasingly abundant. We examined the effect of removing soil organic matter (SOM) by H2O2 before soil dispersion and determination of clay and silt. Soil samples with gradients in SOM were retrieved from three long-term field experiments each with uniform soil mineralogy and texture. For soils with less than 2 g C 100 g-1 minerals, clay estimates were little affected by SOM...
2017: PloS One
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