keyword
MENU ▼
Read by QxMD icon Read
search

roberte

keyword
https://www.readbyqxmd.com/read/28231558/alleviating-effects-of-calcium-on-cobalt-toxicity-in-two-barley-genotypes-differing-in-cobalt-tolerance
#1
Jonas Lwalaba Wa Lwalaba, Gerald Zvobgo, Liangbo Fu, Xuelei Zhang, Theodore Mulembo Mwamba, Noor Muhammad, Robert Prince Mukobo Mundende, Guoping Zhang
Cobalt (Co) contamination in soils is becoming a severe issue in environment safety and crop production. Calcium (Ca)(,) as a macro-nutrient element, shows the antagonism with many divalent heavy metals and the capacity of alleviating oxidative stress in plants. In this study, the protective role of Ca in alleviating Co stress was hydroponically investigated using two barley genotypes differing in Co toxicity tolerance. Barley seedlings exposed to 100µM Co showed the significant reduction in growth and photosynthetic rate, and the dramatic increase in the contents of reactive oxygen species (ROS), malondialdehyde (MDA), reduced glutathione (GSH) and oxidized glutathione (GSSG), and the activities of anti-oxidative enzymes, with Ea52 (Co-sensitive) being much more affected than Yan66 (Co-tolerant)...
February 20, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28231429/two-dimensional-excitonic-photoluminescence-in-graphene-on-a-cu-surface
#2
Youngsin Park, Yooseok Kim, Chang Woo Myung, Robert Anthony Taylor, Christopher C S Chan, Benjamin P L Reid, Tim J Puchtler, Robin J Nicholas, Laishram Tomba Singh, Geunsik Lee, Chan-Cuk Hwang, Chong-Yun Park, Kwang S Kim
Despite having outstanding electrical properties, graphene is unsuitable for optical devices because of its zero band gap. Here, we report two-dimensional excitonic photoluminescence (PL) from graphene grown on a Cu(111) surface, which shows an unexpected and remarkably sharp strong emission near 3.16 eV (full-width at half-maximum ≤ 3meV) and multiple emissions around 3.18 eV. As temperature increases, these emissions blue-shift, displaying the characteristic negative thermal coefficient of graphene. The observed PL originates from the significantly suppressed dispersion of excited electrons in graphene caused by hybridization of graphene π and Cu d orbitals of the 1st and 2nd Cu layers at a shifted saddle point 0...
February 23, 2017: ACS Nano
https://www.readbyqxmd.com/read/28231413/metabolic-chemical-reporters-of-glycans-exhibit-cell-type-selective-metabolism-and-glycoprotein-labeling
#3
Anna R Batt, Balyn W Zaro, Marisol X Navarro, Matthew Robert Pratt
Since the pioneering work by Reutter and co-workers that demonstrated structural flexibility in the carbohydrate biosynthesis and glycosylation pathways, many different labs have used unnatural monosaccharide analogs to perform glycan engineering on the surface of living cells. A subset of these unnatural monosaccharides contain bioorthogonal groups that enable the selective installation of visualization or enrichment tags. These metabolic chemical reporters (MCRs) have proven to be powerful for the unbiased identification of glycoproteins; however they do have certain limitations...
February 23, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28231367/fiddler-s-neck-a-review
#4
Calvin W Myint, Amy L Rutt, Robert T Sataloff
Fiddler's neck is a common dermatologic condition associated with instrument use in violin and viola players. It typically manifests as a submandibular and/or supraclavicular lesion. It is a benign condition, but it may be mistaken for lymphedema or a salivary gland malignancy. Otolaryngologists who treat patients with fiddler's neck should be aware of appropriate management protocols and the need to avoid surgical excision. We obtained informed consent from 3 violinists to present their cases as specific examples of fiddler's neck...
February 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28231338/genes-encoding-two-theileria-parva-antigens-recognized-by-cd8-t-cells-exhibit-sequence-diversity-in-south-sudanese-cattle-populations-but-the-majority-of-alleles-are-similar-to-the-muguga-component-of-the-live-vaccine-cocktail
#5
Diaeldin A Salih, Roger Pelle, Joram M Mwacharo, Moses N Njahira, Wani L Marcellino, Henry Kiara, Agol K Malak, Abdel Rahim M El Hussein, Richard Bishop, Robert A Skilton
East Coast fever (ECF), caused by Theileria parva infection, is a frequently fatal disease of cattle in eastern, central and southern Africa, and an emerging disease in South Sudan. Immunization using the infection and treatment method (ITM) is increasingly being used for control in countries affected by ECF, but not yet in South Sudan. It has been reported that CD8+ T-cell lymphocytes specific for parasitized cells play a central role in the immunity induced by ITM and a number of T. parva antigens recognized by parasite-specific CD8+ T-cells have been identified...
2017: PloS One
https://www.readbyqxmd.com/read/28231305/effects-of-vasoactive-drugs-on-crystalloid-fluid-kinetics-in-septic-sheep
#6
Yuhong Li, Zheng Xiaozhu, Ru Guomei, Ding Qiannan, Robert G Hahn
PURPOSE: Crystalloid fluid and vasoactive drugs are used in the early treatment of sepsis. The purpose of the present study was to examine how these drugs alter plasma volume expansion, peripheral edema, and urinary excretion. METHODS: Twenty-five anesthetized sheep were made septic by cecal puncture and a short infusion of lipopolysaccharide. After 50 min, a slow infusion of isotonic saline was initiated: the saline either contained no drug, norepinephrine (1 μg/kg/min), phenylephrine (3 μg/kg/min), dopamine (50 μg/kg/min), or esmolol (50 μg/kg/min)...
2017: PloS One
https://www.readbyqxmd.com/read/28231301/durability-of-anti-graffiti-coatings-on-stone-natural-vs-accelerated-weathering
#7
Paula M Carmona-Quiroga, Robert M J Jacobs, Sagrario Martínez-Ramírez, Heather A Viles
Extending the use of novel anti-graffiti coatings to built heritage could be of particular interest providing the treatments are efficient enough in facilitating graffiti removal and long-lasting to maintain their protective properties without interfering with the durability of the substrates. However, studies of the durability of these coatings are scarce and have been mainly carried out under accelerated weathering conditions, the most common practice for assessing the durability of materials but one that does not reproduce accurately natural working conditions...
2017: PloS One
https://www.readbyqxmd.com/read/28231280/alkbh7-variant-related-to-prostate-cancer-exhibits-altered-substrate-binding
#8
Alice R Walker, Pavel Silvestrov, Tina A Müller, Robert H Podolsky, Gregory Dyson, Robert P Hausinger, Gerardo Andrés Cisneros
The search for prostate cancer biomarkers has received increased attention and several DNA repair related enzymes have been linked to this dysfunction. Here we report a targeted search for single nucleotide polymorphisms (SNPs) and functional impact characterization of human ALKBH family dioxygenases related to prostate cancer. Our results uncovered a SNP of ALKBH7, rs7540, which is associated with prostate cancer disease in a statistically significantly manner in two separate cohorts, and maintained in African American men...
February 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28231258/depressive-symptoms-in-hiv-infected-and-seronegative-control-subjects-in-cameroon-effect-of-age-education-and-gender
#9
Georgette D Kanmogne, Fang Qiu, Félicien E Ntone, Julius Y Fonsah, Dora M Njamnshi, Callixte T Kuate, Roland F Doh, Anne M Kengne, Claude T Tagny, Emilienne Nchindap, Léopoldine Kenmogne, Dora Mbanya, Mariana Cherner, Robert K Heaton, Alfred K Njamnshi
Depression is a leading cause of HIV/AIDS disease burden; it worsens health outcomes and quality of life. Addressing this problem requires accurate quantification of the extra burden of depression to HIV/AIDS in a given population, and knowledge of the baseline depression prevalence in the general population. There has been no previous study of depression in the general Cameroonian population. The current study attempts to address that important need. We used the Beck Depression Inventory-II to assess the prevalence and severity of depressive symptoms in 270 HIV-infected and seronegative Cameroonians...
2017: PloS One
https://www.readbyqxmd.com/read/28231164/essential-oil-characterization-of-thymus-vulgaris-from-various-geographical-locations
#10
Prabodh Satyal, Brittney L Murray, Robert L McFeeters, William N Setzer
Thyme (Thymus vulgaris L.) is a commonly used flavoring agent and medicinal herb. Several chemotypes of thyme, based on essential oil compositions, have been established, including (1) linalool; (2) borneol; (3) geraniol; (4) sabinene hydrate; (5) thymol; (6) carvacrol, as well as a number of multiple-component chemotypes. In this work, two different T. vulgaris essential oils were obtained from France and two were obtained from Serbia. The chemical compositions were determined using gas chromatography-mass spectrometry...
October 27, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231032/effects-of-live-trapping-and-isoflurane-anesthesia-on-free-ranging-american-martens-martes-americana
#11
Maria C Spriggs, Lisa I Muller, Paul Keenlance, Robert L Sanders, Jill C Witt, Debra L Miller
Seventy-two free-ranging American martens ( Martes americana ) in Michigan were immobilized using isoflurane from 2011 to 2015. In total, 129 anesthetic procedures were performed with no mortalities. Hypothermia and hyperthermia were the most common anesthetic complications, and the mean rectal temperatures were significantly higher during summer than in winter. Dental abnormalities were common; the majority of abnormal findings were broken or discolored teeth attributed to previous dental trauma and were not trap-induced...
February 23, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28230930/in-silico-design-of-optimal-dissolution-kinetics-of-fe-doped-zno-nanoparticles-results-in-cancer-specific-toxicity-in-a-preclinical-rodent-model
#12
Bella B Manshian, Suman Pokhrel, Uwe Himmelreich, Kaido Tämm, Lauri Sikk, Alberto Fernández, Robert Rallo, Tarmo Tamm, Lutz Mädler, Stefaan J Soenen
Cancer cells have unique but widely varying characteristics that have proven them difficult to be treated by classical therapeutics and calls for novel and selective treatment options. Nanomaterials (NMs) have been shown to display biological effects as a function of their chemical composition, and the extent and exact nature of these effects can vary between different biological environments. Here, ZnO NMs are doped with increasing levels of Fe, which allows to finely tune their dissolution rate resulting in significant differences in their biological behavior on cancer or normal cells...
February 23, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28230917/total-laryngectomy-with-primary-tracheoesophageal-puncture-intraoperative-versus-delayed-voice-prosthesis-placement
#13
Rachelle A Robinson, Virginia A Simms, Elizabeth C Ward, Molly K Barnhart, Sophie J Chandler, Robert I Smee
BACKGROUND: Studies support using intraoperative voice prosthesis insertion performed at the time of primary tracheoesophageal puncture (TEP) during laryngectomy. However, none have compared intraoperative voice prosthesis insertion with delayed voice prosthesis insertion. The purpose of this study was to prospectively examine patient, services, and cost benefits of intraoperative versus delayed voice prosthesis placement. METHODS: Voice prosthesis use, duration to the first voice prosthesis change, early communication, and costs were compared between 14 patients who underwent a laryngectomy and who received intraoperative voice prosthesis placement, and 10 patients who underwent initial catheter stenting and then delayed voice prosthesis insertion...
February 23, 2017: Head & Neck
https://www.readbyqxmd.com/read/28230893/the-effect-of-body-mass-on-outdoor-adult-human-decomposition
#14
Lindsey G Roberts, Jessica R Spencer, Gretchen R Dabbs
Forensic taphonomy explores factors impacting human decomposition. This study investigated the effect of body mass on the rate and pattern of adult human decomposition. Nine males and three females aged 49-95 years ranging in mass from 73 to 159 kg who were donated to the Complex for Forensic Anthropology Research between December 2012 and September 2015 were included in this study. Kelvin accumulated degree days (KADD) were used to assess the thermal energy required for subjects to reach several total body score (TBS) thresholds: early decomposition (TBS ≥6...
February 23, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28230889/quantification-of-the-borderline-range-and-implications-for-evaluating-non-animal-testing-methods-precision
#15
Maria Leontaridou, Daniel Urbisch, Susanne N Kolle, Katharina Ott, Denis S Mulliner, Silke Gabbert, Robert Landsiedel
Testing methods to assess the skin sensitisation potential of a substance usually use threshold criteria to dichotomise continuous experimental read-outs into yes/no conclusions. The threshold criteria are prescribed in the respective OECD test guidelines and the conclusion is used for regulatory hazard assessment, i.e. classification and labelling of the substance. We can identify a borderline range (BR) around the classification threshold within which test results are non-conclusive due to a testing method's biological and technical variability...
February 23, 2017: ALTEX
https://www.readbyqxmd.com/read/28230873/long-stokes-shifts-and-vibronic-couplings-in-perfluorinated-polyanilines
#16
Panagiotis Dallas, Ilija Rašović, Tim Puchtler, Robert A Taylor, Kyriakos Porfyrakis
We report the effect of surfactant addition on the optical properties of perfluorinated polyanilines synthesized through liquid-liquid interfaces. We obtained very long Stokes shifts, 205 nm, for oligomers derived from a hydrofluoroether-water system in the presence of Triton X-100 as a surfactant, and vibronic fine features from a toluene-water system.
February 23, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28230808/genome-sequence-of-rhodoferax-antarcticus-ant-br-t-a-psychrophilic-purple-nonsulfur-bacterium-from-an-antarctic-microbial-mat
#17
Jennifer M Baker, Carli J Riester, Blair M Skinner, Austin W Newell, Wesley D Swingley, Michael T Madigan, Deborah O Jung, Marie Asao, Min Chen, Patrick C Loughlin, Hao Pan, Yuankui Lin, Yaqiong Li, Jacob Shaw, Mindy Prado, Chris Sherman, Joseph Kuo-Hsiang Tang, Robert E Blankenship, Tingting Zhao, Jeffrey W Touchman, W Matthew Sattley
Rhodoferax antarcticus is an Antarctic purple nonsulfur bacterium and the only characterized anoxygenic phototroph that grows best below 20 °C. We present here a high-quality draft genome of Rfx. antarcticus strain ANT.BR(T), isolated from an Antarctic microbial mat. The circular chromosome (3.8 Mbp) of Rfx. antarcticus has a 59.1% guanine + cytosine (GC) content and contains 4036 open reading frames. In addition, the bacterium contains a sizable plasmid (198.6 kbp, 48.4% GC with 226 open reading frames) that comprises about 5% of the total genetic content...
February 21, 2017: Microorganisms
https://www.readbyqxmd.com/read/28230712/updating-evidence-for-using-hypothermia-in-pediatric-severe-traumatic-brain-injury-conventional-and-bayesian-meta-analytic-perspectives
#18
Robert C Tasker, Frederick W Vonberg, Elizabeth D Ulano, Alireza Akhondi-Asl
OBJECTIVE: To evaluate clinical trials of hypothermia management on outcome in pediatric patients with severe traumatic brain injury using conventional and Bayesian meta-analyses. DATA SOURCES: Screening of PubMed and other databases to identify randomized controlled trials of hypothermia for pediatric severe traumatic brain injury published before September 2016. STUDY SELECTION: Four investigators assessed and reviewed randomized controlled trial data...
February 20, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28230696/the-call-to-service-is-personal-from-vietnam-to-red-cross-volunteer
#19
Robert J Hassmiller
Updated several times a week with posts by a wide variety of authors, AJN's blog Off the Charts allows us to provide more timely-and often more personal-perspectives on professional, policy, and clinical issues. Best of the Blog will be a regular column to bring AJN readers recent posts that we think deserve a wider audience. To read more, please visit: www.ajnoffthecharts.com.
March 2017: American Journal of Nursing
https://www.readbyqxmd.com/read/28230660/diagnostic-performance-of-48-hour-fasting-test-and-insulin-surrogates-in-patients-with-suspected-insulinoma
#20
Keijiro Ueda, Ken Kawabe, Lingaku Lee, Yuichi Tachibana, Nao Fujimori, Hisato Igarashi, Yoshinao Oda, Robert T Jensen, Ryoichi Takayanagi, Tetsuhide Ito
OBJECTIVES: This study aimed to evaluate the usefulness of the 48-hour fasting test and insulin surrogates followed by a glucagon stimulatory test (GST) for the diagnosis of insulinoma. METHODS: Thirty-five patients with suspected insulinoma who underwent 48-hour fasting test and GST were retrospectively included in our study: 15 patients with surgically proven insulinomas and 20 patients in whom insulinoma was clinically ruled out. We determined the duration of the fasting test, plasma glucose levels, serum levels of immunoreactive insulin and C-peptide, and insulin surrogates (serum levels of β-hydroxybutyrate, free fatty acid, and response of plasma glucose to intravenous glucagon [ΔPG]) at the end of the fast...
February 23, 2017: Pancreas
keyword
keyword
63321
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"