keyword
MENU ▼
Read by QxMD icon Read
search

C. Little

keyword
https://www.readbyqxmd.com/read/28724220/influence-of-temperature-in-pollution-induced-community-tolerance-approaches-used-to-assess-effects-of-copper-on-freshwater-phototrophic-periphyton
#1
Anne Sophie Lambert, Aymeric Dabrin, Arnaud Foulquier, Soizic Morin, Christophe Rosy, Marina Coquery, Stéphane Pesce
By measuring levels of tolerance to toxicants in microbial communities using functional toxicity tests under controlled conditions, pollution-induced community tolerance (PICT) approaches offer an effect-based tool to assess the ecological risk of chemicals in aquatic systems. However, induced tolerance of exposed microbial communities cannot always be attributed solely to the presence of toxicants as various environmental factors, such as temperature, can also be involved. Several PICT studies have been conducted to assess the effects of copper (Cu) on phototrophic periphyton, but little is known about the influence of temperature on the response of these microbial communities to acute and chronic exposure to Cu...
July 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28724096/hydrology-and-soil-manipulations-of-iron-rich-ditch-mesocosms-provide-little-evidence-of-phosphorus-capture-within-the-profile
#2
David E Ruppert, Brian A Needelman, Peter J A Kleinman, Martin C Rabenhorst, Bahram Momen, David B Wester
Agricultural drainage ditches function as first-order streams and affect nutrient management. Soil mesocosms from a ditch featuring a vertical (increasing upward) gradient in iron (Fe) and phosphorus (P) were subjected to hydraulic and soil treatments. These manipulations mimicked aspects of dredging and controlled drainage and inspected the soil release and retention of P. Treatments did not remove P from simulated groundwater. Throughput water either gained in P (lack of dredging, especially under Fe-reducing conditions) or had P concentrations indistinguishable from input water (dredging)...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28723946/the-mitochondrial-genome-of-the-terrestrial-carnivorous-plant-utricularia-reniformis-lentibulariaceae-structure-comparative-analysis-and-evolutionary-landmarks
#3
Saura R Silva, Danillo O Alvarenga, Yani Aranguren, Helen A Penha, Camila C Fernandes, Daniel G Pinheiro, Marcos T Oliveira, Todd P Michael, Vitor F O Miranda, Alessandro M Varani
The carnivorous plants of the family Lentibulariaceae have attained recent attention not only because of their interesting lifestyle, but also because of their dynamic nuclear genome size. Lentibulariaceae genomes span an order of magnitude and include species with the smallest genomes in angiosperms, making them a powerful system to study the mechanisms of genome expansion and contraction. However, little is known about mitochondrial DNA (mtDNA) sequences of this family, and the evolutionary forces that shape this organellar genome...
2017: PloS One
https://www.readbyqxmd.com/read/28723733/hering-s-law-in-congenital-ptosis-evaluation-of-the-contralateral-response-to-unilateral-congenital-ptosis-repair
#4
Thomas J E Clark, Wesley J Klejch, Kai Wang, Richard C Allen, Jeffrey A Nerad, Keith D Carter, Erin M Shriver
PURPOSE: To determine the applicability and clinical relevance of Hering's law for the eyelids in cases of congenital ptosis. METHODS: A retrospective chart review and digital photograph analysis of patients who underwent unilateral congenital ptosis repair at a tertiary, university-based, Oculoplastics clinic was conducted. Pre- and postoperative eyelid height (marginal reflex distance), upper eyelid symmetry, and brow position were determined using ImageJ analysis software...
July 18, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28723420/plant-and-yeast-cornichon-possess-a-conserved-acidic-motif-required-for-correct-targeting-of-plasma-membrane-cargos
#5
Paul Rosas-Santiago, Daniel Lagunas-Gomez, Carolina Yáñez-Domínguez, Rosario Vera-Estrella, Olga Zimmermannova, Hana Sychrová, Omar Pantoja
The export of membrane proteins along the secretory pathway is initiated at the endoplasmic reticulum after proteins are folded and packaged inside this organelle by their recruiting into the coat complex COPII vesicles. It is proposed that cargo receptors are required for the correct transport of proteins to its target membrane, however, little is known about ER export signals for cargo receptors. Erv14/Cornichon belong to a well conserved protein family in Eukaryotes, and have been proposed to function as cargo receptors for many transmembrane proteins...
July 16, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28723268/assay-of-calcium-transients-and-synapses-in-rat-hippocampal-neurons-by-kinetic-image-cytometry-and-high-content-analysis-an-in-vitro-model-system-for-postchemotherapy-cognitive-impairment
#6
Patrick M McDonough, Natalie L Prigozhina, Ranor C B Basa, Jeffrey H Price
Postchemotherapy cognitive impairment (PCCI) is commonly exhibited by cancer patients treated with a variety of chemotherapeutic agents, including the endocrine disruptor tamoxifen (TAM). The etiology of PCCI is poorly understood. Our goal was to develop high-throughput assay methods to test the effects of chemicals on neuronal function applicable to PCCI. Rat hippocampal neurons (RHNs) were plated in 96- or 384-well dishes and exposed to test compounds (forskolin [FSK], 17β-estradiol [ES]), TAM or fulvestrant [FUL], aka ICI 182,780) for 6-14 days...
July 2017: Assay and Drug Development Technologies
https://www.readbyqxmd.com/read/28723084/mineral-reactions-in-shale-gas-reservoirs-barite-scale-formation-from-reusing-produced-water-as-hydraulic-fracturing-fluid
#7
Amelia N Paukert Vankeuren, J Alexandra Hakala, Karl Jarvis, Johnathan E Moore
Hydraulic fracturing for gas production is now ubiquitous in shale plays, but relatively little is known about shale-hydraulic fracturing fluid (HFF) reactions within the reservoir. To investigate reactions during the shut-in period of hydraulic fracturing, experiments were conducted flowing different HFFs through fractured Marcellus Shale cores at reservoir temperature and pressure (66(o)C, 20 MPa) for one week. Results indicate HFFs with hydrochloric acid cause substantial dissolution of carbonate minerals, as expected, increasing effective fracture volume (fracture volume + near-fracture matrix porosity) by 56-65%...
July 19, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28722568/epidemiology-of-spotted-fever-group-rickettsioses-and-acute-undifferentiated-febrile-illness-in-villeta-colombia
#8
Álvaro A Faccini-Martínez, Alejandro Ramírez-Hernández, Christian Barreto, Elkin Forero-Becerra, Diego Millán, Elkin Valbuena, Andrea C Sánchez-Alfonso, Wilson O Imbacuán-Pantoja, Jesús A Cortés-Vecino, Luis J Polo-Terán, Néstor Yaya-Lancheros, Jorge Jácome, Ana M Palomar, Sonia Santibáñez, Aránzazu Portillo, José A Oteo, Marylin Hidalgo
Etiology of acute undifferentiated febrile syndrome (AUFS) is often unknown, leading to inaccurate diagnosis and treatment. Villeta town has been identified as an endemic area for spotted fever group (SFG) rickettsioses but little is known about possible amplifier hosts and other Rickettsia species different from Rickettsia rickettsii. Besides, few studies have approached other AUFS etiologies in the region. We investigated the role of dengue, leptospirosis, rickettsioses, human anaplasmosis, and Q fever as possible causes of AUFS in patients from Villeta...
June 19, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28721890/the-prognostic-value-of-braf-c-kit-and-nras-mutations-in-melanoma-patients-with-brain-metastases
#9
Paul W Sperduto, Wen Jiang, Paul D Brown, Steve Braunstein, Penny Sneed, Daniel A Wattson, Helen A Shih, Ananta Bangdiwala, Ryan Shanley, Natalie A Lockney, Kathryn Beal, Emil Lou, Thomas Amatruda, William A Sperduto, John P Kirkpatrick, Norman Yeh, Laurie E Gaspar, Jason K Molitoris, Laura Masucci, David Roberge, James Yu, Veronica Chiang, Minesh Mehta
PURPOSE: Brain metastases are a common problem in patients with melanoma, but little is known about the effect of gene mutations on survival in these patients. METHODS AND MATERIALS: We created a retrospective multi-institutional database of 823 patients with melanoma and brain metastases diagnosed between 2006 and 2015. Clinical parameters, gene mutation status (BRAF, C-KIT, NRAS), and treatment were correlated with survival. Treatment patterns and outcomes were compared with a prior era (1985-2005)...
August 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28721520/seed-development-of-jatropha-curcas-l-euphorbiaceae-integrating-anatomical-ultrastructural-and-molecular-studies
#10
Emanoella L Soares, Magda L B Lima, José R S Nascimento, Arlete A Soares, Ítalo A C Coutinho, Francisco A P Campos
This work provides a detailed histological analysis of the development of Jatropha curcas seeds, together with an assessment of the role of programmed cell death in this process. Seeds of Jatropha curcas are a potential source of raw material for the production of biodiesel, but very little is known about how the architecture of the seeds is shaped by the coordinated development of the embryo, endosperm and maternal tissues, namely integuments and nucellus. This study used standard anatomical and ultrastructural techniques to evaluate seed development and programmed cell death (PCD) in the inner integument was monitored by qPCR...
July 18, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28720698/catalysis-and-chemical-mechanisms-of-calcite-dissolution-in-seawater
#11
Adam V Subhas, Jess F Adkins, Nick E Rollins, John Naviaux, Jonathan Erez, William M Berelson
Near-equilibrium calcite dissolution in seawater contributes significantly to the regulation of atmospheric [Formula: see text] on 1,000-y timescales. Despite many studies on far-from-equilibrium dissolution, little is known about the detailed mechanisms responsible for calcite dissolution in seawater. In this paper, we dissolve (13)C-labeled calcites in natural seawater. We show that the time-evolving enrichment of [Formula: see text] in solution is a direct measure of both dissolution and precipitation reactions across a large range of saturation states...
July 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28720635/increased-public-accountability-for-hospital-nonprofit-status-potential-impacts-on-residency-positions
#12
Melanie C Raffoul, Robert L Phillips
BACKGROUND: The Institute of Medicine recently called for greater graduate medical education (GME) accountability for meeting the workforce needs of the nation. The Affordable Care Act expanded community health needs assessment (CHNA) requirements for nonprofit and tax-exempt hospitals to include community assessment, intervention, and evaluation every 3 years but did not specify details about workforce. Texas receives relatively little federal GME funding but has used Medicaid waivers to support GME expansion...
July 2017: Journal of the American Board of Family Medicine: JABFM
https://www.readbyqxmd.com/read/28720525/motor-resonance-during-action-observation-is-gaze-contingent-a-tms-study
#13
Giorgia D'Innocenzo, Claudia C Gonzalez, Alexander V Nowicky, A Mark Williams, Daniel T Bishop
When we observe others performing an action, visual input to our mirror neuron system is reflected in the facilitation of primary motor cortex (M1), a phenomenon known as 'motor resonance'. However, it is unclear whether this motor resonance is contingent upon our point-of-gaze. In order to address this issue, we collected gaze data from participants as they viewed an intransitive action - thumb abduction/adduction - under four conditions: with natural gaze behaviour (free viewing) and with their gaze fixated on each of three predetermined loci at various distances from the prime mover...
July 15, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28720479/interaction-between-prenatal-risk-and-infant-parasympathetic-and-sympathetic-stress-reactivity-predicts-early-aggression
#14
J Suurland, K B Van der Heijden, S C J Huijbregts, S H M Van Goozen, H Swaab
Nonreciprocal action of the parasympathetic (PNS) and sympathetic (SNS) nervous systems, increases susceptibility to emotional and behavioral problems in children exposed to adversity. Little is known about the PNS and SNS in interaction with early adversity during infancy. Yet this is when the physiological systems involved in emotion regulation are emerging and presumably most responsive to environmental influences. We examined whether parasympathetic respiratory sinus arrhythmia (RSA) and sympathetic pre-ejection period (PEP) response and recovery at six months, moderate the association between cumulative prenatal risk and physical aggression at 20 months (N=113)...
July 15, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28720249/using-wheel-availability-to-shape-running-behavior-of-the-rat-towards-improved-behavioral-and-neurobiological-outcomes
#15
Julia C Basso, Joan I Morrell
BACKGROUND: Though voluntary wheel running (VWR) has been used extensively to induce changes in both behavior and biology, little attention has been given to the way in which different variables influence VWR. This lack of understanding has led to an inability to utilize this behavior to its full potential, possibly blunting its effects on the endpoints of interest. NEW METHOD: We tested how running experience, sex, gonadal hormones, and wheel apparatus influence VWR in a range of wheel access "doses"...
July 15, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28720229/perioperative-registered-nurses-knowledge-attitudes-behaviors-and-barriers-regarding-pressure-ulcer-prevention-in-perioperative-patients
#16
Peggy C Tallier, Patricia R Reineke, Kathy Asadoorian, John G Choonoo, Marc Campo, Christine Malmgreen-Wallen
BACKGROUND: Hospital acquired pressure ulcers have a detrimental effect on patient quality of life, morbidity, mortality, and cost to the healthcare industry. Little is known about pressure ulcer prevention in perioperative services. OBJECTIVES: The objectives of this study were to describe perioperative registered nurses (RNs) knowledge, attitudes, behaviors, and barriers about pressure ulcer prevention and to determine if knowledge and the availability of a pressure ulcer staging tool are predictors of pressure ulcer prevention behavior...
August 2017: Applied Nursing Research: ANR
https://www.readbyqxmd.com/read/28719963/prevalence-of-hymenolepis-nana-and-h-diminuta-from-brown-rats-rattus-norvegicus-in-heilongjiang-province-china
#17
Di Yang, Wei Zhao, Yichi Zhang, Aiqin Liu
Hymenolepis nana and Hymenolepis diminuta are globally widespread zoonotic cestodes. Rodents are the main reservoir host of these cestodes. Brown rats (Rattus norvegicus) are the best known and most common rats, and usually live wherever humans live, especially in less than desirable hygiene conditions. Due to the little information of the 2 hymenolepidid species in brown rats in China, the aim of this study was to understand the prevalence and genetic characterization of H. nana and H. diminuta in brown rats in Heilongjiang Province, China...
June 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28719789/waist-to-height-ratio-in-indian-women-comparison-with-traditional-indices-of-obesity-association-with-inflammatory-biomarkers-and-lipid-profile
#18
Sharvari Dilip Malshe, Shobha Anand Udipi
We compared waist-to-height ratio (WHtR) with traditional anthropometric indices in healthy women aged 21 to 45 years from urban slums of Mumbai city, India. Lipid profile and inflammatory markers were measured in a subsample of 200 women, and their relationship with WHtR was examined. Mean WHtR was 0.50 ± 0.1, but a little more than half (51.9%) of the women had WHtR ≥0.50. WHtR could correctly identify centrally obese adult women, even when they were categorized as healthy or normal according to body mass index, waist circumference, waist to hip ratio, and percentage body fat...
July 2017: Asia-Pacific Journal of Public Health
https://www.readbyqxmd.com/read/28719283/american-aedes-vexans-mosquitoes-are-competent-vectors-of-zika-virus
#19
Alex Gendernalik, James Weger-Lucarelli, Selene M Garcia Luna, Joseph R Fauver, Claudia Rückert, Reyes A Murrieta, Nicholas Bergren, Demitrios Samaras, Chilinh Nguyen, Rebekah C Kading, Gregory D Ebel
AbstractStarting in 2013-2014, the Americas have experienced a massive outbreak of Zika virus (ZIKV) which has now reached at least 49 countries. Although most cases have occurred in South America and the Caribbean, imported and autochthonous cases have occurred in the United States. Aedes aegypti and Aedes albopictus mosquitoes are known vectors of ZIKV. Little is known about the potential for temperate Aedes mosquitoes to transmit ZIKV. Aedes vexans has a worldwide distribution, is highly abundant in particular localities, aggressively bites humans, and is a competent vector of several arboviruses...
June 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28719025/frequency-risk-factors-and-outcomes-of-central-nervous-system-relapse-in-lymphoma-patients-treated-with-dose-adjusted-epoch-plus-rituximab
#20
M K Malecek, A M Petrich, S Rozell, B Chu, S Trifilio, N Galanina, M Maurer, U Farooq, B Link, G S Nowakowski, C Nabhan, A O Ayed
Background Central nervous system (CNS) relapse in non-Hodgkin lymphoma (NHL) is a rare but serious complication that carries a poor prognosis. The use of infusional etoposide, prednisone, vincristine, cyclophosphamide, doxorubicin, and rituximab (EPOCH-R) for frontline treatment of diffuse large B cell lymphoma (DLBCL) is increasing, though little is known about incidence of and risk factors for CNS relapse with this regimen Patients and methods We completed a chart review of patients with NHL who received EPOCH-R as front line therapy...
July 18, 2017: American Journal of Hematology
keyword
keyword
94954
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"