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Mass shooting

Youssef Rouphael, Giampaolo Raimondi, Luigi Lucini, Petronia Carillo, Marios C Kyriacou, Giuseppe Colla, Valerio Cirillo, Antonio Pannico, Christophe El-Nakhel, Stefania De Pascale
Interest in the role of small bioactive molecules (< 500 Da) in plants is on the rise, compelled by plant scientists' attempt to unravel their mode of action implicated in stimulating growth and enhancing tolerance to environmental stressors. The current study aimed at elucidating the morphological, physiological and metabolomic changes occurring in greenhouse tomato (cv. Seny) treated with omeprazole (OMP), a benzimidazole inhibitor of animal proton pumps. The OMP was applied at three rates (0, 10, or 100 μM) as substrate drench for tomato plants grown under nonsaline (control) or saline conditions sustained by nutrient solutions of 1 or 75 mM NaCl, respectively...
2018: Frontiers in Plant Science
Bansh N Singh, Padmanabh Dwivedi, Birinchi K Sarma, Gopal S Singh, Harikesh B Singh
Trichoderma spp., are saprophytic fungi that can improve plant growth through increased nutrient acquisition and change in the root architecture. In the present study, we demonstrate that Trichoderma asperellum T42 mediate enhancement in host biomass, total nitrogen content, nitric oxide (NO) production and cytosolic Ca2+ accumulation in tobacco. T42 inoculation enhanced lateral root, root hair length, root hair density and root/shoot dry mass in tobacco under deprived nutrients condition. Interestingly, these growth attributes were further elevated in presence of T42 and supplementation of NO3 - and NH4 + nutrients to tobacco at 40 and 70 days, particularly in NO3 - supplementation, whereas no significant increment was observed in nia30 mutant...
2018: Frontiers in Plant Science
Guang-Wen Lien, Jung-Hsuan Chen, Fang-Wei Tien, Pau-Chung Chen, Huei-Wen Chen, Hsaio-Lin Hwa, Cheng-Chung Fang, Te-I Weng, Pai-Shan Chen
Phthalates are not covalently bound to plastics. They can leach from experimental plastic devices. Due to the development of sensitive techniques, exogenous sources that interfere with the accuracy of phthalate monoester analysis can be easily detected. Here, we propose the simple and rapid dilute-and-shoot method to minimize sample handling and limit contact with laboratory apparatus, which efficiently reduced phthalate interferences mainly from experimental plasticware and improved the accuracy of analysis...
March 3, 2018: Journal of Hazardous Materials
Xiao-Tong Luo, Bao-Dong Cai, Lei Yu, Jun Ding, Yu-Qi Feng
Brassinosteroids (BRs) are regarded as the sixth plant hormone that is widely distributed in the plant kingdom. Sensitive quantification of BRs will be greatly benefit to illuminate the detail mechanisms about how BRs play crucial role in plant developmental processes such as cell division, cell expansion, cytodifferentiation, seed germination, vegetative growth and resisting biological or abiotic stress. In the current study, we developed a method for rapid and sensitive determination of endogenous BRs in plant tissues by combining LC-MS and a novel sample preparation strategy, in which the plant tissue extract was supplied to solid phase boronate affinity labeling and extraction, followed by desorption and salt-induced phase transition extraction for further purification...
February 28, 2018: Journal of Chromatography. A
Quoc-Ky Truong, Xuan-Lan Mai, Jae-Yong Lee, Jongsook Rhee, Dinh Vinh, Jongki Hong, Kyeong Ho Kim
A simple, sensitive, and rapid assay based on hydrophilic interaction liquid chromatography (HILIC) with tandem mass spectrometry was developed and validated for the simultaneous determination of metformin and 13 other oral antihyperglycaemic drugs in human urine using metoprolol as an internal standard. A simple sample clean-up procedure using the "dilute and shoot" approach enabled fast and reliable analysis. Chromatographic separation was performed on a HILIC column using an elution gradient of mobile phase A, composed of 1 mM ammonium formate (pH 5), and mobile phase B, composed of acetonitrile, at a flow rate of 0...
March 9, 2018: Archives of Pharmacal Research
João Cardoso de Souza Junior, Roberta Corrêa Nogueirol, Francisco Antonio Monteiro
Nitrogen (N) can alleviate metal toxicity. However, as of yet, there have been no studies showing the efficacy of NO3 - /NH4 + in mitigating Cu toxicity. The objective of this study was to evaluate the Cu toxicity on the nutritional and productive attributes of Panicum maximum cv. Tanzania as well as the role of NO3 - and NH4 + ratios in nutritional homeostasis. The experiment was conducted using 3 × 4 factorial treatments arranged in a randomized complete block design with three replicates. The treatments were three NO3 - /NH4 + ratios (100/0, 70/30, and 50/50) and four Cu rates (0...
March 8, 2018: Environmental Science and Pollution Research International
Jaime Alcántara-Durán, David Moreno-González, Miriam Beneito-Cambra, Juan F García-Reyes
In this work, a sensitive nanoflow liquid chromatography high-resolution mass spectrometry screening method has been developed for the determination of multiclass drugs of abuse and sport drugs in human urine. 81 drugs belonging to different multiclass pharmaceuticals were targeted. The method is based on the use of a nanoLC column (75 µm × 150 mm, 3 µm particle size and 100 Å pore) with the nanospray emitter tip integrated so that dead volumes are significantly minimized. Data acquisition method included both full-scan and all ion fragmentation experiments using an Orbitrap analyser (Q-Exactive) operated in the positive ionization mode...
May 15, 2018: Talanta
Matthew E Hirschtritt, Renee L Binder
No abstract text is available yet for this article.
February 28, 2018: JAMA Psychiatry
Roland van den Tillaar
The aims of this study were to investigate the effect of four different shooting techniques (slap, sweeper, drag, and wrist shots) in floorball on velocity and accuracy in experienced floorball players, and to investigate whether target height has an influence on these shooting performances. Ten experienced male floorball players (age, 21 ± 4 years; body mass, 81.5 ± 10 kg; body height, 1.85 ± 0.07 m; and years of experience, 6.9 ± 3.1 years) shot as hard as possible and tried to hit the upper and lower targets with four different shooting techniques from a 4-m distance...
February 28, 2018: Motor Control
Ying Ji, Adrien Mestrot, Rainer Schulin, Susan Tandy
Used as a hardening agent in lead bullets, antimony (Sb) has become a major contaminant in shooting range soils of some countries including Switzerland. Soil contamination by Sb is also an environmental problem in countries with Sb-mining activities such as China and Bolivia. Because of its toxicity and relatively high mobility, there is concern over the risk of Sb transfer from contaminated soils into plants, and thus into the food chain. In particular there is very little information on the environmental behavior of methylated antimony, which can be produced by microbial biomethylation of inorganic Sb in contaminated soils...
2018: Frontiers in Plant Science
Julia Kathrin Baumgart, Berit Brurok, Øyvind Sandbakk
BACKGROUND: Peak oxygen uptake (VO2peak) in Paralympic sitting sports athletes represents their maximal ability to deliver energy aerobically in an upper-body mode, with values being influenced by sex, disability-related physiological limitations, sport-specific demands, training status and how they are tested. OBJECTIVES: To identify VO2peak values in Paralympic sitting sports, examine between-sports differences and within-sports variations in VO2peak and determine the influence of sex, age, body-mass, disability and test-mode on VO2peak...
2018: PloS One
Abdullah Alsaeedi, Hassan El-Ramady, Tarek Alshaal, Mohamed El-Garawani, Nevien Elhawat, Awadh Al-Otaibi
The current work was aimed to elucidate the role of engineered nanosilica (SiNPs) particles to mitigate the damaging impacts of Na+ -derived salinity on cucumber (Cucumis sativus) Beit Alpha variety by conducting in vitro experiments applying various Na+ concentrations i.e. 0, 1000, 2000, 3000, 4000 and 5000 mg L-1 . By treating seeds and seedlings, respectively, of cucumber with SiNPs (0, 100, 200 and 300 ppm) and subsequent determination some germination and vegetative parameters as well as chemical analysis of seedlings, we verified that SiNPs succeeded to alleviate the detrimental effects of high Na+ salinity by increasing germination parameters and vegetative growth of cucumber seedlings...
February 9, 2018: Plant Physiology and Biochemistry: PPB
Sandro Bartolomei, Federico Nigro, Luca Gubellini, Simone Ciacci, Franco Merni, Filippo Treno, Matteo Cortesi, Gabriele Semprini
The purpose of the present study was to compare the anthropometric and performance profiles of division I (D1) and division II (D2) Italian field hockey players.Fifteen DI players and fifteen D2 players (age = 25.4 ± 5.2 y; body mass = 78.5 ± 9.0 kg; body height = 179.6 ± 7.8 cm) were assessed on one occasion for anthropometry, body composition, physiological measurements and sport-specific skills. Differences between the two groups were evaluated using a one-way analysis of variance. Pearson correlations were used to examine relationships between the different measurements...
February 20, 2018: Journal of Strength and Conditioning Research
Felipe C Alves, Silvano Bianco, Mariluce P Nepomuceno, José Valcir F Martins, Pedro Luís C A Alves
Among weeds, morning glories comprise a very important group of climbing plants that infest sugarcane crops. The objective of this study was to evaluate the shoot and root interference of Merremia cissoides on the initial growth of sugarcane cultivar RB 966928. The experiment consisted of five treatment groups: (i) sugarcane monocropping, (ii) morning glory monocropping, (iii) sugarcane intertwined with morning glory but inseparate boxes, (iv) sugarcane intertwined with morning glory in attached boxes and (v) sugarcane with morning glory in attached boxes with morning glory prevented from intertwining with the sugarcane...
February 19, 2018: Anais da Academia Brasileira de Ciências
James Bunce
Seeds of three C₃ and one C₄ annual weedy species were collected from agricultural fields in Beltsville, Maryland in 1966 and 2006, when atmospheric CO₂ concentrations averaged about 320 and 380 mol mol-1 , respectively. Plants from each collection year were grown over a range of CO₂ concentrations to test for adaptation of these weedy species to recent changes in atmospheric CO₂. In all three of the C₃ species, the increase in CO₂ concentration from 320 mol mol-1 to 380 mol mol-1 increased total dry mass at 24 days in plants from seeds collected in 2006, but not in plants from seeds collected in 1966...
February 19, 2018: Plants (Basel, Switzerland)
Lucie Borovcová, Volodymyr Pauk, Karel Lemr
New psychoactive substances represent serious social and health problem as tens of new compounds are detected in Europe annually. They often show structural proximity or even isomerism which complicates their analysis. Two methods based on ultra high performance supercritical fluid chromatography and ultra high performance liquid chromatography with mass spectrometric detection were validated and compared. A simple dilute-filter-and-shoot protocol utilizing propan-2-ol or methanol for supercritical fluid or liquid chromatography, respectively, was proposed to detect and quantify 15 cathinones and phenethylamines in human urine...
February 20, 2018: Journal of Separation Science
Adolfo Rosati, Andrea Paoletti, Raeed Al Hariri, Franco Famiani
The amount of shoot stem (i.e., woody part of the shoot) dry matter per unit shoot leaf dry matter (i.e., the shoot wood to leaf biomass ratio) has been reported to be lower in short shoots than in long ones, and this is related to the greater and earlier ability of short shoots to export carbon. This is important in fruit trees, since the greater and earlier carbon export ability of shoots with a lower wood to leaf biomass ratio improves fruit production. This ratio may vary with cultivars, training systems or plant age, but no study has previously investigated the possible effect of fruit production...
February 14, 2018: Tree Physiology
Khaoula Adouni, Hassiba Chahdoura, Habib Mosbah, Celestino Santos-Buelga, Ana M González-Paramás, María Ciudad-Mulero, Ângela Fernandes, Ricardo C Calhelha, Patricia Morales, Guido Flamini, Isabel C F R Ferreira, Lotfi Achour
The nutritional values and phytochemical composition of young shoots of wild Asparagus stipularis Forssk. from Tunisia were determined in this study. The antioxidant (tested by four different in vitro assays) and antiproliferative properties (against human tumour cell lines) of aqueous and hydroalcoholic extracts of the young shoots were also investigated. The obtained results indicated that the young shoots are a potential source of valuable nutrients and dietary fiber, and their hydroalcoholic extract showed marked antioxidant and antiproliferative activities in all tested assays...
February 16, 2018: Food & Function
Imre Cseresnyés, Katalin Szitár, Kálmán Rajkai, Anna Füzy, Péter Mikó, Ramóna Kovács, Tünde Takács
The root electrical capacitance (C R ) method is suitable for assessing root growth and activity, but soil water content (SWC) strongly influences the measurement results. This study aimed to adapt the method for field monitoring by evaluating the effect of SWC on root capacitance to ensure the comparability of C R detected at different SWC. First a pot experiment was conducted with maize and soybean to establish C R -SWC functions for the field soil. Ontogenetic changes in root activity were monitored under field conditions by simultaneously measuring C R and SWC around the roots...
2018: Frontiers in Plant Science
Vincent Desfontaine, Francesca Capetti, Raul Nicoli, Tiia Kuuranne, Jean-Luc Veuthey, Davy Guillarme
Matrix effects (ME) is acknowledged as being one of the major drawbacks of quantitative bioanalytical methods, involving the use of liquid chromatography coupled to mass spectrometry (LC-MS). In the present study, the incidence of ME in SFC-MS/MS and LC-MS/MS in the positive mode electrospray ionization (ESI+) was systematically compared for the analysis of urine and plasma samples using two representative sets of 40 doping agents and 38 pharmaceutical compounds, respectively. Three different SFC stationary phase chemistries were employed, to highlight the importance of the column in terms of selectivity...
February 7, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
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