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https://www.readbyqxmd.com/read/28325890/environmental-filtering-triggers-community-assembly-of-forest-understorey-plants-in-central-european-pine-stands
#1
Werner Ulrich, Piotr Sewerniak, Radosław Puchałka, Marcin Piwczyński
Habitat filtering models predict ecologically similar plant species to jointly colonize sites due to comparable environmental characteristics leading to an aggregated pattern of species spatial occurrence. Models focused on interspecific competition expect species with similar ecological requirements to be spatially segregated. While both models are corroborated by field work, few empirical studies have tried to infer under which habitat conditions these patterns of co-occurrence prevail. Here we use an exceptional data set on central European pine forest understorey plant communities to assess the change in community structure along gradients of soil productivity and heterogeneity...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28323754/-it-s-inside-my-body-and-it-s-mine
#2
Elizabeth T Montgomery, Ariane van der Straten, Miria Chitukuta, Krishnaveni Reddy, Kubashni Woeber, Millicent Atujuna, Linda-Gail Bekker, Juliane Etima, Teopista Nakyanzi, Ashley J Mayo, Ariana Katz, Nicole Laborde, Cynthia I Grossman, Lydia Soto-Torres, Thesla Palanee-Phillips, Jared M Baeten
The MTN-020/ASPIRE trial evaluated the safety and effectiveness of the dapivirine vaginal ring for prevention of HIV-1 infection among African women. A nested qualitative component was conducted at 6 of 15 study sites in Uganda, Malawi, Zimbabwe and South Africa to evaluate acceptability of and adherence to the ring. Qualitative study participants (n = 214) were interviewed with one of 3 modalities: single in-depth interview, up to 3 serial interviews, or an exit Focus Group Discussion. Using semi-structured guides administered in local languages, 280 interviews were audio-recorded, transcribed, translated, coded and analyzed...
March 18, 2017: AIDS
https://www.readbyqxmd.com/read/28319178/inter-nesting-movements-and-habitat-use-of-adult-female-kemp-s-ridley-turtles-in-the-gulf-of-mexico
#3
Donna J Shaver, Kristen M Hart, Ikuko Fujisaki, David Bucklin, Autumn R Iverson, Cynthia Rubio, Thomas F Backof, Patrick M Burchfield, Raul de Jesus Gonzales Diaz Miron, Peter H Dutton, Amy Frey, Jaime Peña, Daniel Gomez Gamez, Hector J Martinez, Jaime Ortiz
Species vulnerability is increased when individuals congregate in restricted areas for breeding; yet, breeding habitats are not well defined for many marine species. Identification and quantification of these breeding habitats are essential to effective conservation. Satellite telemetry and switching state-space modeling (SSM) were used to define inter-nesting habitat of endangered Kemp's ridley turtles (Lepidochelys kempii) in the Gulf of Mexico. Turtles were outfitted with satellite transmitters after nesting at Padre Island National Seashore, Texas, USA, from 1998 through 2013 (n = 60); Rancho Nuevo, Tamaulipas, Mexico, during 2010 and 2011 (n = 11); and Tecolutla, Veracruz, Mexico, during 2012 and 2013 (n = 11)...
2017: PloS One
https://www.readbyqxmd.com/read/28303194/timing-of-nest-vegetation-measurement-may-obscure-adaptive-significance-of-nest-site-characteristics-a-simulation-study
#4
Mark D McConnell, Adrian P Monroe, Loren Wes Burger, James A Martin
Advances in understanding avian nesting ecology are hindered by a prevalent lack of agreement between nest-site characteristics and fitness metrics such as nest success. We posit this is a result of inconsistent and improper timing of nest-site vegetation measurements. Therefore, we evaluated how the timing of nest vegetation measurement influences the estimated effects of vegetation structure on nest survival. We simulated phenological changes in nest-site vegetation growth over a typical nesting season and modeled how the timing of measuring that vegetation, relative to nest fate, creates bias in conclusions regarding its influence on nest survival...
February 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28302097/objective-response-to-mtor-inhibition-in-a-metastatic-collision-tumor-of-the-liver-composed-of-melanoma-and-adenocarcinoma-with-tsc1-loss-a-case-report
#5
Munveer S Bhangoo, Jenny Y Zhou, Siraj M Ali, Russell Madison, Alexa B Schrock, Carrie Costantini
BACKGROUND: Collision tumors are uncommon but well described clinical entities composed of distinct tumor histologies occurring within the same anatomic site. Optimal management of patients with collision tumors remains highly variable and depends on clinical characteristics such as the involved tumor types, predominant histology, as well as the extent of disease. Comprehensive genomic profiling is a means of identifying genomic alterations to suggest benefit from targeted therapy. CASE PRESENTATION: A 78-year-old woman presented to medical oncology with liver metastases occurring within the background of a 1-year history of uveal melanoma...
March 16, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28298595/incubation-under-climate-warming-affects-learning-ability-and-survival-in-hatchling-lizards
#6
Buddhi Dayananda, Jonathan K Webb
Despite compelling evidence for substantial individual differences in cognitive performance, it is unclear whether cognitive ability influences fitness of wild animals. In many animals, environmental stressors experienced in utero can produce substantial variation in the cognitive abilities of offspring. In reptiles, incubation temperatures experienced by embryos can influence hatchling brain function and learning ability. Under climate warming, the eggs of some lizard species may experience higher temperatures, which could affect the cognitive abilities of hatchlings...
March 2017: Biology Letters
https://www.readbyqxmd.com/read/28295223/spatial-scale-mediates-the-effects-of-biodiversity-on-marine-primary-producers
#7
Matthew E S Bracken, James G Douglass, Valerie Perini, Geoffrey C Trussell
Most studies evaluating the effects of biodiversity on ecosystem functioning are conducted at a single location, limiting our understanding of how diversity-function relationships may change when measured across different spatial scales. We conducted a species-removal experiment at 3 sites nested in each of 3 regions along the rocky intertidal coastline of the Gulf of Maine, USA, to evaluate the potential for scale-dependent effects of species loss on the biomass of intertidal seaweed assemblages. We randomly assigned 50 plots in the mid-intertidal zone at each site to one of 5 treatments (n = 10 plots each): an un-manipulated control, a polyculture plot that contained our 3 target seaweed species, and three monoculture plots...
March 15, 2017: Ecology
https://www.readbyqxmd.com/read/28288036/gist-manifesting-as-a-retroperitoneal-tumor-clinicopathologic-immunohistochemical-and-molecular-genetic-study-of-112-cases
#8
Markku Miettinen, Anna Felisiak-Golabek, Zengfeng Wang, Shingo Inaguma, Jerzy Lasota
Most gastrointestinal stromal tumors (GISTs) occur in the tubular gastrointestinal (GI) tract, but some present apparently outside the GI tract. In this study, we analyzed 112 GISTs located in the retroperitoneum. These tumors occurred in 55 women and 57 men with a median age of 65 years (range: 21 to 89 y). On the basis of clinically or histologically detected connections to GI tract, 15 tumors were considered likely of gastric, 9 duodenal, and 13 of small intestinal origin. The remaining cases were categorized by location as peripancreatic (n=25), pelvic (n=11), mesenteric (n=4), and of unspecified/miscellaneous sites (n=35)...
March 10, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28284992/nest-site-lottery-revisited-towards-a-mechanistic-model-of-population-growth-suppressed-by-the-availability-of-nest-sites
#9
Krzysztof Argasinski, Ryszard Rudnicki
In the "nest site lottery" mechanism, newborns form a pool of candidates and randomly drawn candidates replace the dead adults in their nest sites. However, the selection process has only been analyzed under the assumption of an equilibrium population size. In this study, we extend this model to cases where the population size is not at an equilibrium, which yields a simplified (but fully mechanistic) biphasic population growth model, where the suppression of growth is driven only by the availability of free nest sites for newborns...
March 8, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28281559/oral-bisphosphonates-and-colorectal-cancer
#10
Emily Vogtmann, Douglas A Corley, Lucy M Almers, Chris R Cardwell, Liam J Murray, Christian C Abnet
Use of oral bisphosphonates has been associated with a decreased risk of colorectal cancer (CRC), but the association may be related to residual confounding by healthy lifestyle or body mass index (BMI). Therefore, we conducted a prospective nested case-control study within the Kaiser Permanente, Northern California health system cohort. In total, 12,505 CRC cases were individually matched to 599,534 controls. Odds ratios (OR) and 95% confidence intervals (CI) were calculated using conditional logistic regression models with adjustment for important covariates extracted from the database...
March 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28281099/tool-use-by-amazonian-capuchin-monkeys-during-predation-on-caiman-nests-in-a-high-productivity-forest
#11
Kelly Torralvo, Rafael M Rabelo, Alfredo Andrade, Robinson Botero-Arias
Descriptions of new tool-use events are important for understanding how ecological context may drive the evolution of tool use among primate traditions. Here, we report a possible case of the first record of tool use by wild Amazonian capuchin monkeys (Sapajus macrocephalus). The record was made by a camera trap, while we were monitoring caiman nest predation at Mamirauá Reserve in Central Amazonia. An adult individual was registered in a bipedal posture, apparently using a branch as a shovel to dig eggs out of a nest...
March 9, 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28271670/nest-survival-rate-of-reeves-s-pheasant-syrmaticus-reevesii-based-on-artificial-nest-experiments
#12
Xu Luo, Yu-Ze Zhao, Jing Ma, Jian-Qiang Li, Ji-Liang Xu
To explore the nest survival rate of Reeves's pheasant(Syrmaticus reevesii) and the nest-site factors that affect it, we conducted artificial nest experiments with reference to natural nests at Dongzhai National Nature Reserve(DNNR), Henan Province and Pingjingguan, Hubei Province from April to June 2014 simulating the situation in its early and later breeding season. We also determined distance characteristics of the nest sites by ArcGIS 10.0. Nest survival models were constructed in Program MARK for data analysis...
January 18, 2017: Zool Res
https://www.readbyqxmd.com/read/28267302/cytomorphology-of-metastatic-pituitary-carcinoma-to-the-bone
#13
Christopher M Chandler, Xiaoqi Lin
Metastatic pituitary carcinoma to bone is rare. In this report, we present a case of a 59-year-old female with recurrent pituitary adenoma of the sparsely granulated somatotroph subtype with metastasis to a few bony sites 10 years later. Needle core biopsy (NCB) with touch preparations was performed on a 5 mm lesion in left ilium. Diff-Quik stained NCB touch preparation slides showed a few loosely cohesive epithelial polygonal cells that were arranged in nests or acini, or singly, had scant vacuolated cytoplasm and eccentrically located round nuclei (plasmacytoid) with slight nuclear pleomorphism, fine granular chromatin, conspicuous nucleoli, and smooth nuclear membrane...
March 7, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28261449/happy-to-breed-in-the-city-urban-food-resources-limit-reproductive-output-in-western-jackdaws
#14
Eva Meyrier, Lukas Jenni, Yves Bötsch, Stephan Strebel, Bruno Erne, Zulima Tablado
Urban areas expand worldwide, transforming landscapes and creating new challenging habitats. Some bird species, mainly omnivorous feeding on human waste and cavity nesters, commonly breed in these habitats and are, therefore, regarded as urban-adapted. Although urban areas may provide new nesting sites and abundant human waste, the low breeding success found in some of these species suggests that the poor protein content in human waste might limit breeding parameters. We investigated whether the breeding success of a cavity nester and omnivorous species commonly breeding in urban areas, the Western Jackdaw (Corvus monedula), depended on the availability of good-quality non-urban food...
March 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28260341/-study-of-epidemic-area-on-tsutsugamushi-disease-in-taizhou-from-2013-to-2014
#15
Y L He, H Y Yang, C X Yu, X Zhang, Q H Yi, Z L Ma, J Cha, X B Xu, Q Zhang, W J Dai, W J Qian, J Yin, S J Zhu, Z Xu
Objective: To study the epidemiological characteristics of tsutsugamushi disease, and to confirm the existence of the disease's epidemic foci in Taizhou. Methods: From 2013 to 2014, Dongxing town hospital and Xingqiao town hospital were selected as specimen collection sites in Jingjiang city. Blood samples (5 ml) were collected from 40 patients with acute tsutsugamushi disease. A total of 59 rodents were captured with cage night method in the survey sites at 5, 7, 9, 10, and 11 months in 2013, from which, the spleen, liver, and kidney specimens were selected...
March 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28259853/effectiveness-of-a-cough-management-algorithm-at-the-transitional-phase-from-acute-to-chronic-cough-in-australian-children-aged-15%C3%A2-years-protocol-for-a-randomised-controlled-trial
#16
Kerry-Ann F O'Grady, Keith Grimwood, Maree Toombs, Theo P Sloots, Michael Otim, David Whiley, Jennie Anderson, Sheree Rablin, Paul J Torzillo, Helen Buntain, Anne Connor, Don Adsett, Oon Meng Kar, Anne B Chang
INTRODUCTION: Acute respiratory infections (ARIs) are leading causes of hospitalisation in Australian children and, if recurrent, are associated with increased risk of chronic pulmonary disorders later in life. Chronic (>4 weeks) cough in children following ARI is associated with decreased quality-of-life scores and increased health and societal economic costs. We will determine whether a validated evidence-based cough algorithm, initiated when chronic cough is first diagnosed after presentation with ARI, improves clinical outcomes in children compared with usual care...
March 3, 2017: BMJ Open
https://www.readbyqxmd.com/read/28253900/testing-the-leadership-and-organizational-change-for-implementation-loci-intervention-in-substance-abuse-treatment-a-cluster-randomized-trial-study-protocol
#17
Gregory A Aarons, Mark G Ehrhart, Joanna C Moullin, Elisa M Torres, Amy E Green
BACKGROUND: Evidence-based practice (EBP) implementation represents a strategic change in organizations that requires effective leadership and alignment of leadership and organizational support across organizational levels. As such, there is a need for combining leadership development with organizational strategies to support organizational climate conducive to EBP implementation. The leadership and organizational change for implementation (LOCI) intervention includes leadership training for workgroup leaders, ongoing implementation leadership coaching, 360° assessment, and strategic planning with top and middle management regarding how they can support workgroup leaders in developing a positive EBP implementation climate...
March 3, 2017: Implementation Science: IS
https://www.readbyqxmd.com/read/28248988/an-illustrated-guide-to-seeds-found-in-nests-of-the-florida-harvester-ant-pogonomyrmex-badius
#18
Walter R Tschinkel, Daniel J Domínguez
The Florida harvester ant, Pogonomyrmex badius collects the seeds of many plant species and stores them in underground nest chambers for later consumption. Seeds taken from multiple nests in 1989, 2014 and 2015 were separated by size and species and identified through published keys, comparison with herbarium specimens and with identified seed collections. Harvester ants stored at least 58 species of seeds from 20 plant families in their chambers. This paper presents images of each seed species in several aspects, their relative abundance in P...
2017: PloS One
https://www.readbyqxmd.com/read/28248973/a-new-genus-and-species-of-marine-catfishes-siluriformes-ariidae-from-the-upper-eocene-birket-qarun-formation-wadi-el-hitan-egypt
#19
Sanaa E El-Sayed, Mahmoud A Kora, Hesham M Sallam, Kerin M Claeson, Erik R Seiffert, Mohammed S Antar
Wadi El-Hitan, the UNESCO World Heritage Site, of the Fayum Depression in the northeast part of the Western Desert of Egypt, has produced a remarkable collection of Eocene vertebrates, in particular the fossil whales from which it derives its name. Here we describe a new genus and species of marine catfishes (Siluriformes; Ariidae), Qarmoutus hitanensis, from the base of the upper Eocene Birket Qarun Formation, based on a partial neurocranium including the complete left side, partial right dentary, left suspensorium, two opercles, left pectoral girdle and spine, nuchal plates, first and second dorsal spines, Weberian apparatus and a disassociated series of abdominal vertebrae...
2017: PloS One
https://www.readbyqxmd.com/read/28248728/clinicopathologic-features-of-the-non-cns-primary-ewing-sarcoma-family-of-tumors-in-the-head-and-neck-region
#20
Chang Gok Woo, Bora Lee, Joon Seon Song, Kyung-Ja Cho
Ewing sarcoma family of tumor (ESFT) is a group of malignant neoplasms that affect children and young adults. Primary ESFT does not commonly arise from the head and neck region. This study aimed to elucidate the clinicopathologic characteristics of ESFT of the head and neck region except for central nervous system primitive neuroectodermal tumors. Among the 207 cases of ESFT of the bone and soft tissue, diagnosed at Asan Medical Center during a 20-year period, 25 (12.1%) involved the head and neck region. Of those, 21 were available for histologic, immunohistochemical, and molecular studies...
February 28, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
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