keyword
MENU ▼
Read by QxMD icon Read
search

AOA

keyword
https://www.readbyqxmd.com/read/27913871/n2o-emission-characteristics-and-its-affecting-factors-in-rain-fed-potato-fields-in-wuchuan-county-china
#1
Liwei Wang, Cheng Wang, Zhihua Pan, Hui Xu, Lin Gao, Peiyi Zhao, Zhiqiang Dong, Jingting Zhang, Guohui Cui, Sen Wang, Guolin Han, Hui Zhao
Representing an important greenhouse gas, nitrous oxide (N2O) emission from cultivated land is a hot topic in current climate change research. This study examined the influences of nitrogen fertilisation, temperature and soil moisture on the ammonia monooxygenase subunit A (amoA) gene copy numbers and N2O emission characteristics. The experimental observation of N2O fluxes was based on the static chamber-gas chromatographic method. The ammonia-oxidising bacteria (AOB) and ammonia-oxidising archaea (AOA) gene copy numbers in different periods were measured by real-time polymerase chain reaction (PCR)...
December 3, 2016: International Journal of Biometeorology
https://www.readbyqxmd.com/read/27904414/near-infrared-spectroscopic-analysis-of-total-phenolic-content-and-antioxidant-activity-of-berry-fruits
#2
Jasenka Gajdoš Kljusurić, Kiril Mihalev, Ivana Bečić, Ivana Polović, Mariya Georgieva, Senka Djaković, Želimir Kurtanjek
This study evaluates the feasibility of using near-infrared (NIR) spectroscopy as a rapid and environmentally friendly technique for validation and prediction of the total phenolic content (TPC) and antioxidant activity (AOA) indices (as 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging, inhibition time (IT) of the Briggs-Rauscher oscillating reaction, and relative antioxidant capacity (RAC)) of berry fruit extracts. The analysed berry samples originated from Croatia (blackberries, wild blueberries, raspberries, red currants and strawberries) and Bulgaria (wild blueberries, raspberries and strawberries)...
June 2016: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/27903344/-a-control-study-of-artificial-oocyte-activation-in-the-same-period
#3
D Y Hao, R Zhang, X Zhang, C Y Shen, Y Yang, W B Wu, Y L Liu, J Liu, J R Zhang, X L Wang
Objective: To compare the fertility rate and embryo outcome between normal fertilization and the use of Calcium ionophore A23187 on the same period of the same cycle of human ovum for artificial activation. Methods: Patients who conducted the intracytoplasmic sperm injection (ICSI) cycle in vitro fertilization assisted reproductive from January 2015 to December in reproductive center of the Third Affiliated Hospital of Zhengzhou University were enrolled.The protocol of this study was approved by the ethics committee of The Third Affiliated Hospital of Zhengzhou University...
November 22, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27901369/involvement-of-endogenous-central-hydrogen-sulfide-h2s-in-hypoxia-induced-hypothermia-in-spontaneously-hypertensive-rats
#4
João Paulo J Sabino, Renato N Soriano, Alberto F Donatti, Rodrigo Restrepo Fernandez, Marcelo Kwiatkoski, Heloísa D C Francescato, Terezila M Coimbra, Luiz G S Branco
Spontaneously hypertensive rats (SHR) display autonomic imbalance and abnormal body temperature (Tb) adjustments. Hydrogen sulfide (H2S) modulates hypoxia-induced hypothermia, but its role in SHR thermoregulation is unknown. We tested the hypothesis that SHR display peculiar thermoregulatory response to hypoxia and that endogenous H2S overproduced in the caudal nucleus of the solitary tract (NTS) of SHR modulates this response. SHR and Wistar rats were microinjected into the fourth ventricle with aminooxyacetate (AOA, H2S-synthezing enzyme inhibitor) or sodium sulfide (Na2S, H2S donor) and exposed to normoxia (21% inspired O2) or hypoxia (10% inspired O2, 30 min)...
September 6, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/27888380/kinetin-improves-motility-viability-and-antioxidative-parameters-of-ram-semen-during-storage-at-refrigerator-temperature
#5
Elham Zadeh Hashem, Mohsen Eslami
The present experiment was conducted to evaluate the effect of kinetin on ram semen quality during cold storage. Ejaculates were collected using an artificial vagina from five Qezel rams. Ejaculates which met the criteria (volume of 0.75-2 ml; minimum spermatozoa concentration of 2.5 × 109 spermatozoa/ml and forward progressive motility of 80%), were pooled, diluted with extender without kinetin (control) or enriched with 25 (K 25), 50 (K 50), 100 (K 100) and 200 (K 200) μM kinetin at a final concentration of 500 × 106 spermatozoa per mL...
November 25, 2016: Cell and Tissue Banking
https://www.readbyqxmd.com/read/27878776/successive-chlorothalonil-applications-inhibit-soil-nitrification-and-discrepantly-affect-abundances-of-functional-genes-in-soil-nitrogen-cycling
#6
Ying Teng, Manyun Zhang, Guangmei Yang, Jun Wang, Peter Christie, Yongming Luo
Broad-spectrum fungicide chlorothalonil (CTN) is successively applied into intensive agriculture soil. However, the impacts of successive CTN applications on soil nitrification and related microorganisms remain poorly understood. A microcosm study was conducted to reveal the effects of successive CTN applications on soil nitrification and functional genes involved in soil nitrogen (N) cycling. The CTN at the dosages of 5 mg kg(-1) dry soil (RD) and 25 mg kg(-1) dry soil (5RD) was successively applied into the test soil at 7-day intervals which resulted in the accumulations of CTN residues...
November 23, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27864514/proteomics-and-comparative-genomics-of-nitrososphaera-viennensis-reveal-the-core-genome-and-adaptations-of-archaeal-ammonia-oxidizers
#7
Melina Kerou, Pierre Offre, Luis Valledor, Sophie S Abby, Michael Melcher, Matthias Nagler, Wolfram Weckwerth, Christa Schleper
Ammonia-oxidizing archaea (AOA) are among the most abundant microorganisms and key players in the global nitrogen and carbon cycles. They share a common energy metabolism but represent a heterogeneous group with respect to their environmental distribution and adaptions, growth requirements, and genome contents. We report here the genome and proteome of Nitrososphaera viennensis EN76, the type species of the archaeal class Nitrososphaeria of the phylum Thaumarchaeota encompassing all known AOA. N. viennensis is a soil organism with a 2...
November 18, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27859084/stream-drying-drives-microbial-ammonia-oxidation-and-first-flush-nitrate-export
#8
Stephanie N Merbt, Lorenzo Proia, James I Prosser, Eugènia Martí, Emilio O Casamayor, Daniel von Schiller
Stream microbial communities and associated processes are influenced by environmental fluctuations that may ultimately dictate nutrient export. Discharge fluctuations caused by intermittent stream flow are increasing worldwide in response to global change. We examined the impact of flow cessation and drying on in-stream nitrogen cycling. We determined archaeal (AOA) and bacterial ammonia oxidizer (AOB) abundance and ammonia oxidation activity in surface and deep sediments from different sites along the Fuirosos stream (Spain) subjected to contrasting hydrological conditions (i...
September 2016: Ecology
https://www.readbyqxmd.com/read/27852916/the-2015-aoa-north-american-traveling-fellowship
#9
REVIEW
Addisu Mesfin, Xinning Li, Jonathan F Dickens, Bashar Alolabi, Anna N Miller
The North American Traveling Fellowship (NATF) is one of the flagship tours of the American Orthopaedic Association (AOA). NATF is geared toward advancing the careers of young orthopaedic surgeons through the promotion of clinical, scientific, and social exchange. The 2015 tour had a major emphasis on the development of leadership in the field of orthopaedics through close interactions and meetings with departmental chairs and administrators, as well as with hospital and medical school leaders. The 2015 NATF tour was in the Midwest corridor of Canada and the United States...
November 16, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27842968/effects-of-earthworms-on-nitrification-and-ammonia-oxidizers-in-vermicomposting-systems-for-recycling-of-fruit-and-vegetable-wastes
#10
Kui Huang, Hui Xia, Guangyu Cui, Fusheng Li
Although it is known that earthworms enrich the nitrate content in their final products, the detailed mechanisms behind this are not well understood, and this is important for determining the agricultural value of vermicomposting. Hence, this study aimed to investigate the effects of earthworms on ammonia oxidization and to clarify the functions of ammonia-oxidizing bacteria and archaea (AOB and AOA) during vermicomposting of fruit and vegetable wastes (FVWs). For this, two dry systems using dry FVWs and a fresh system using fresh FVWs were adopted and compared during 60days of vermicomposting...
November 11, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27817146/the-response-of-ammonia-oxidizing-microorganisms-to-trace-metals-and-urine-in-two-grassland-soils-in-new-zealand
#11
Pengcheng Wang, Hong J Di, Keith C Cameron, Qiling Tan, Andriy Podolyan, Xiaohu Zhao, Ron G McLaren, Chengxiao Hu
An incubation experiment was conducted to investigate the response of ammonia-oxidizing bacteria (AOB), ammonia-oxidizing archaea (AOA), and the nitrification rate to the contamination of Cu, Zn, and Cd in two New Zealand grassland soils. The soils spiked with different concentrations of Cu (20 and 50 mg kg(-1)), Zn (20 and 50 mg kg(-1)), and Cd (2 and 10 mg kg(-1)) were incubated for 14 days and then treated with 500 mg kg(-1) urine-N before continuing incubation for a total of 115 days. Soils were sampled at intervals throughout the incubation...
November 6, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27809252/millimetre-level-accuracy-gnss-positioning-with-the-blind-adaptive-beamforming-method-in-interference-environments
#12
Saeed Daneshmand, Thyagaraja Marathe, Gérard Lachapelle
The use of antenna arrays in Global Navigation Satellite System (GNSS) applications is gaining significant attention due to its superior capability to suppress both narrowband and wideband interference. However, the phase distortions resulting from array processing may limit the applicability of these methods for high precision applications using carrier phase based positioning techniques. This paper studies the phase distortions occurring with the adaptive blind beamforming method in which satellite angle of arrival (AoA) information is not employed in the optimization problem...
October 31, 2016: Sensors
https://www.readbyqxmd.com/read/27806503/anemia-related-mortality-in-inner-mongolia-in-2008-2012
#13
Lifu Chen, Maolin Du, Hairong Zhang, Yuanzhi Xu, Qingxia Wang, Fengyun Zuo, Yun Li, Sun Juan
OBJECTIVE: This study aimed to assess the characteristics of anemia-related deaths and the relationship between socio-demographic status and mortality risk of anemia in Inner Mongolia from 2008 to 2012. METHODS: We obtained our data for 2008-2012 from the Death Registry System of Inner Mongolia. We calculated the mortality, percentage, and potential years of life lost (PYLL) of anemia in diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (DBDIM)...
July 12, 2016: Global Journal of Health Science
https://www.readbyqxmd.com/read/27791482/experience-with-compound-words-influences-their-processing-an-eye-movement-investigation-with-english-compound-words
#14
Barbara J Juhasz
Recording eye movements provides information on the time-course of word recognition during reading. Juhasz and Rayner (2003) examined the impact of five word recognition variables, including familiarity and age-of-acquisition (AoA), on fixation durations. All variables impacted fixation durations, but the time-course differed. However, the study focused on relatively short, morphologically simple words. Eye movements are also informative for examining the processing of morphologically complex words such as compound words (e...
October 28, 2016: Quarterly Journal of Experimental Psychology: QJEP
https://www.readbyqxmd.com/read/27776656/characterization-of-atherosclerotic-disease-in-thoracic-aorta-a-3d-multicontrast-vessel-wall-imaging-study
#15
Changwu Zhou, Huiyu Qiao, Le He, Chun Yuan, Huijun Chen, Qiang Zhang, Rui Li, Wei Wang, Fang Du, Cheng Li, Xihai Zhao
PURPOSE: To investigate the characteristics of plaque in the thoracic aorta using three dimensional multicontrast magnetic resonance imaging. MATERIALS AND METHODS: Elderly subjects (≥60years) were recruited in this study. Thoracic aorta was imaged on a 3.0T MR scanner by acquiring multicontrast sequences. The plaque burden was evaluated by measuring lumen area, wall area, wall thickness, and normalized wall index. The presence or absence of plaque and intraplaque hemorrhage (IPH)/mural thrombus (MT) were identified...
November 2016: European Journal of Radiology
https://www.readbyqxmd.com/read/27774044/structural-and-antioxidant-properties-of-compounds-obtained-from-fe-2-chelation-by-juglone-and-two-of-its-derivatives-dft-qtaim-and-nbo-studies
#16
Aymard Didier Tamafo Fouegue, Julius Numbonui Ghogomu, Désiré Bikélé Mama, Nyiang Kennet Nkungli, Elie Younang
The chelating ability of juglone and two of its derivatives towards Fe(2+)ion and the antioxidant activity (AOA) of the resulting chelates and complexes (in the presence of H2O and CH3OH as ligands) in gas phase is reported via bond dissociation enthalpy, ionization potential, proton dissociation enthalpy, proton affinity, and electron transfer enthalpy. The DFT/B3LYP level of theory associated with the 6-31+G(d,p) and 6-31G(d) Pople-style basis sets on the atoms of the ligands and the central Fe(II), respectively, was used...
2016: Bioinorganic Chemistry and Applications
https://www.readbyqxmd.com/read/27767217/applicant-characteristics-associated-with-successful-matching-into-otolaryngology
#17
Leah J Hauser, Grant M Gebhard, Rachel Blumhagen, Nichole E Carlson, Cristina Cabrera-Muffly
OBJECTIVE: To identify resident applicant characteristics that increase the odds of matching to otolaryngology residency. STUDY DESIGN: Cross-sectional analysis. METHODS: Residency applications to our institution from 2009 through 2013 were reviewed. The available data represented 81.1% of applicants to otolaryngology programs nationwide. Online public records were searched to determine whether an applicant matched to an otolaryngology residency position...
October 21, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27765980/assessment-of-total-polyphenols-antioxidants-and-antimicrobial-properties-of-aonla-varieties
#18
Parveen Kumari, B S Khatkar
Phenolic content, antioxidant activities and antimicrobial activities of methanolic, ethanolic and ethyl acetate extracts of five different varieties of aonla (Emblica officinalis) fruits as well their powders were evaluated. Total polyphenolic content in fresh aonla fruit extracts varied from 70.6 to 159.4 mg GAE/g and their EC 50 (effective concentration) values for antioxidant activity ranged from 46.72 to 359.7 µg/ml. Significant varietal difference were observed in antioxidant activity of the extracts of fresh aonla fruit and powder...
July 2016: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/27749275/self-assembled-albumin-nanoparticles-as-a-nanocarrier-for-aclacinomycin-a
#19
Guangming Gong, Wenya Liu, Shudong Wang
This study aimed to reduce the cytotoxicity and improve the targeting of aclacinomycin (ACM) by covalently coupling it with amino-oxyacetic acid (AOA) to generate an active intermediate, AOA-ACM. AOA-ACM was conjugated with self-assembled human serum albumin (HSA) nanoparticles constructed using tris(2-carboxyethyl)phosphine (TCEP) as disulfide bond breaking molecules in an 'opening stage-intermediate-closing stage' route, in which the hydrophobic interaction, interchange of sulfhydryl and hydrogen bond may be the key factors in the assembling process...
November 18, 2016: Nanotechnology
https://www.readbyqxmd.com/read/27743317/subjective-age-of-acquisition-norms-for-600-turkish-words-from-four-age-groups
#20
İlyas Göz, Ali I Tekcan, Aslı Aktan Erciyes
The main purpose of this study was to report age-based subjective age-of-acquisition (AoA) norms for 600 Turkish words. A total of 115 children, 100 young adults, 115 middle-aged adults, and 127 older adults provided AoA estimates for 600 words on a 7-point scale. The intraclass correlations suggested high reliability, and the AoA estimates were highly correlated across the four age groups. Children gave earlier AoA estimates than the three adult groups; this was true for high-frequency as well as low-frequency words...
October 14, 2016: Behavior Research Methods
keyword
keyword
2363
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"