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Mass shooting

Larissa V Stebounova, Natalia I Gonzalez-Pech, Jae Hong Park, T Renee Anthony, Vicki H Grassian, Thomas M Peters
There is an increasing need to evaluate concentrations of nanoparticles in occupational settings due to their potential negative health effects. The Nanoparticle Respiratory Deposition (NRD) personal sampler was developed to collect nanoparticles separately from larger particles in the breathing zone of workers, while simultaneously providing a measure of respirable mass concentration. This study compared concentrations measured with the NRD sampler to those measured with a nano Micro Orifice Uniform-Deposit Impactor (nanoMOUDI) and respirable samplers in three workplaces...
May 18, 2018: Annals of Work Exposures and Health
Kota Kera, Dennis D Fine, Daniel J Wherritt, Yoshiki Nagashima, Norimoto Shimada, Takeshi Ara, Yoshiyuki Ogata, Lloyd W Sumner, Hideyuki Suzuki
Introduction: Oxygen from carbon dioxide, water or molecular oxygen, depending on the responsible enzyme, can lead to a large variety of metabolites through chemical modification. Objectives: Pathway-specific labeling using isotopic molecular oxygen (18 O2 ) makes it possible to determine the origin of oxygen atoms in metabolites and the presence of biosynthetic enzymes (e.g., oxygenases). In this study, we established the basis of 18 O2 -metabolome analysis. Methods: 18 O2 labeled whole Medicago truncatula seedlings were prepared using 18 O2 -air and an economical sealed-glass bottle system...
2018: Metabolomics: Official Journal of the Metabolomic Society
Catherine Preece, Natalie F Clamp, Gemma Warham, Michael Charles, Mark Rees, Glynis Jones, Colin P Osborne
The domestication of crops in the Fertile Crescent began approximately 10,000 years ago indicating a change from a hunter-gatherer lifestyle to a sedentary, agriculture-based existence. The exploitation of wild plants changed during this transition, such that a small number of crops were domesticated from the broader range of species gathered from the wild. However, the reasons for this change are unclear.Previous studies have shown unexpectedly that crop progenitors are not consistently higher yielding than related wild grass species, when growing without competition...
May 2018: Journal of Ecology
G James Rubin, Rebecca Webster, Antonia N Rubin, Richard Amlot, Nick Grey, Neil Greenberg
OBJECTIVES: To assess public attitudes towards data sharing to facilitate a mental health screening programme for people caught up in a mass casualty incident. DESIGN: Two, identical, cross-sectional, online surveys, using quotas to ensure demographic representativeness of people aged 18-65 years in England. Participants were randomly allocated to consider a scenario in which they witness a terrorism-related radiation incident or mass shooting, after which a police officer records their contact details...
May 20, 2018: BMJ Open
Adriaan A S Marais, Herman J Dicks
A bystander claimed to have been shot by a police officer, and CT scans were used to match qualitative and quantitative aspects of the unremoved bullet with police issued 9 mm Luger ammunition. CT scan methodology proved a valid approach for the measurement of bullets based on calculated measurement capability and correlation with "gold standard" physical measurement by vernier caliper. Measurements regarding length and base diameter, as well as length/diameter ratio, were insufficient to unambiguously identify a specific caliber, or a bullet of specific mass within a caliber class...
May 14, 2018: Journal of Forensic Sciences
Qian Chen, Ning Ding, Ling Peng, Shun Feng Ge, Yuan Mao Jiang
Seven-year-old 'Yanfu3'/M26 /M. hupehensis Rehd. seedlings and 15 N trace technique were used to explore the characteristics of 15 N-urea absorption, utilization, loss and fruit yield and quality under different nitrogen application rates (N100 , N200 and N300 ). The main results were as follows: the plant growth, 15 N absorption, utilization and loss differed significantly under different treatments. The plant leaf chlorophyll content (SPAD value), photosynthetic rate (Pn ), total N content of leaves and the biomass, as well as the root-shoot ratio of N200 treatment were obviously higher than the N100 and N300 treatments...
July 18, 2017: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
Aline Das Gracas Souza, Ricardo Ernesto Muraro, Oscar Jose Smiderle, Valmor Joao Bianchi
This study aimed to verify the influence of different substrates with and without addition of nutrient solution on the production of the rootstock cultivar Capdeboscq and grafted peach plants of 'Chimarrita' scion. In the first experiment, the height and stem diameter of the rootstocks were evaluated every two weeks, up to 90 days after transplanting. At 90 days after transplanting, dry weight of shoots and roots, total dry mass and Dickson Quality Index were evaluated. In the second experiment, seedlings of 'Capdeboscq' were grafted with 'Chimarrita' scion...
May 7, 2018: Recent Patents on Food, Nutrition & Agriculture
Meiling Wang, Yu Liu, Bin Guo, Lijuan Wei, Hao Teng, Xiaoqing Chen, Ming Ma
Ying-zhi-huang Injection (YZH-I) is a classic intravenous formulation of polyherbal Chinese medicine which has been prescribed to treat severe jaundice and acute hepatitis for nearly 50 years. Despite some published data on its major components in the constituent herbs, the overall chemical profile of the potentially bioactive ingredients in YZH-I formula remains largely unknown. Here we developed a multispectral integration approach towards nontargeted phytochemical profiling of YZH-I by liquid chromatography-ultraviolet diode array detector coupled to ion trap/time-of-flight multistage mass spectrometry (LC-DAD-IT(MSn )/TOF) with fast polarity-switching mode...
April 27, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Jose C Tovar, J Steen Hoyer, Andy Lin, Allison Tielking, Steven T Callen, S Elizabeth Castillo, Michael Miller, Monica Tessman, Noah Fahlgren, James C Carrington, Dmitri A Nusinow, Malia A Gehan
Premise of the Study: Image-based phenomics is a powerful approach to capture and quantify plant diversity. However, commercial platforms that make consistent image acquisition easy are often cost-prohibitive. To make high-throughput phenotyping methods more accessible, low-cost microcomputers and cameras can be used to acquire plant image data. Methods and Results: We used low-cost Raspberry Pi computers and cameras to manage and capture plant image data. Detailed here are three different applications of Raspberry Pi-controlled imaging platforms for seed and shoot imaging...
March 2018: Applications in Plant Sciences
Nicholas O Kuhl, Monica P Lieberman
The school shooting in Parkland, Florida in February 2018 left 17 people dead and countless other children and teachers with physical and psychological trauma that will require decades of healing. As Marjory Stoneman Douglas High School alumni and current medical students, the authors of this Invited Commentary contend that they are in a unique position to advocate on behalf of their neighbors, classmates, and future patients. Since the authors began medical school in 2015, there have been 19 mass shootings in the United States resulting in 253 deaths...
May 2, 2018: Academic Medicine: Journal of the Association of American Medical Colleges
Philip J White, Martin R Broadley, Hamed A El-Serehy, Timothy S George, Konrad Neugebauer
Background: Linear relationships are commonly observed between shoot magnesium ([Mg]shoot) and shoot calcium ([Ca]shoot) concentrations among angiosperm species growing in the same environment. Scope and Conclusions: This article argues that, in plants that do not exhibit 'luxury' accumulation of Mg or Ca, (1) distinct stoichiometric relationships between [Mg]shoot and [Ca]shoot are exhibited by at least three groups of angiosperm species, namely commelinid monocots, eudicots excluding Caryophyllales, and Caryophyllales species; (2) these relationships are determined by cell wall chemistry and the Mg/Ca mass quotients in their cell walls; (3) differences between species in [Mg]shoot and [Ca]shoot within each group are associated with differences in the cation exchange capacity (CEC) of the cell walls of different species; and (4) Caryophyllales constitutively accumulate more Mg in their vacuoles than other angiosperm species when grown without a supra-sufficient Mg supply...
May 2, 2018: Annals of Botany
Su Nan Xui, Yi Chen Liu, Yan Hong Liu, Zhong Lin Chen, Yue Li, Li Hong Zhang
This study was carried out to analyze the changes of growth and photosynthesis of clonal ramets under nutrient heterogeneity, where the connected and disconnected ramets were treated with different nutrient levels. The results showed that under the nutrient heterogeneity the parent ramets in middle or high nutrient levels improved leaf length, leaf width, root mass, leaf mass, net photosynthetic rate, stomatal conductance, transpiration rate and water use efficiency of the connected daughter ramets, with an increase of 16...
March 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
Tomohito Sano, Hideki Horie, Akiko Matsunaga, Yuhei Hirono
BACKGROUND: Use of covering cultivation to shade tea (Camellia sinensis L.) trees to produce high-quality, high-priced green tea has recently increased in Japan. Knowledge of shading effects on morphological and color traits, and chemical components of new tea shoots is important for product quality and productivity. We assessed these traits of tea shoots and their relationships under covering cultivation of various radiation intensities. RESULTS: Leaf thickness, LMA (leaf mass per area), and leaf density of new tea leaves were smaller under covering culture than under open-field culture...
May 2, 2018: Journal of the Science of Food and Agriculture
Marie Leiner, Izul De la Vega, Bert Johansson
No abstract text is available yet for this article.
2018: Frontiers in Pediatrics
Rosa M Gonzalez-Guarda, Elizabeth Burgess Dowdell, Marie Ann Marino, Jocelyn C Anderson, Kathryn Laughon
No abstract text is available yet for this article.
April 16, 2018: Nursing Outlook
Eric Grouzmann, Catherine Centeno, Philippe J Eugster
BACKGROUND: Urinary vanillylmandelic acid (VMA) and homovanillic acid (HVA) are biomarkers for the diagnosis and follow-up of neuroblastoma, whereas urinary 5-hydroxyindoleacetic acid (5-HIAA) is used to assess a carcinoid tumor. These analytes are conventionally analyzed in a single run by chromatography (LC) coupled with electrochemical detection (LC-ECD) using commercial kits. A rapid dilute-and-shoot LC tandem mass spectrometry (LC-MS/MS) assay was validated in order to replace the LC-ECD method and therefore improve analytical specificity and throughput...
May 1, 2018: Clinical Chemistry and Laboratory Medicine: CCLM
Karla Mariela Hernández-Sánchez, Leticia Garduño-Siciliano, Julieta Luna-Herrera, L Gerardo Zepeda-Vallejo, Selene Lagunas-Rivera, G Esthefania García-Gutiérrez, María Elena Vargas-Díaz
ETHNOPHARMACOLOGICAL RELEVANCE: Bidens odorata Cavanilles is a medicinal and edible plant known as "mozote blanco, aceitilla, acahual, mozoquelite" which is traditionally used in Mexico as a diuretic, hypoglycaemic, anti-inflammatory, antipyretic, antitussive, to treat gastrointestinal disorders, kidney pain, and lung or respiratory diseases. AIM OF THE STUDY: This research study was aimed at phytochemical analysis of aerial extracts of B. odorata for antimycobacterial and lipid-lowering activities...
April 25, 2018: Journal of Ethnopharmacology
Jan Šimura, Ioanna Antoniadi, Jitka Široká, Danuse Tarkowska, Miroslav Strnad, Karin Ljung, Ondrej Novak
Phytohormones are physiologically important small molecules, which play essential roles in intricate signaling networks that regulate diverse processes in plants. We present a method for the simultaneous targeted profiling of 101 phytohormone-related analytes from minute amounts of fresh plant material (< 20 mg). Rapid and non-selective extraction, fast one-step sample purification, and extremely sensitive ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) enable concurrent quantification of the main phytohormone classes: cytokinins, auxins, brassinosteroids, gibberellins, jasmonates, salicylates, and abscisates...
April 27, 2018: Plant Physiology
Miranda Lynne Baumann, Brent Teasdale
In response to a spate of mass shootings, national debate over the root of America's gun violence epidemic has centered on mental illness. Consequently, calls have been made to legislatively restrict firearm access among individuals with mental illness to reduce gun violence. While there is a link between mental illness and suicide, a dearth of empirical evidence exists to inform public policy on the link between firearm access and mental illness. The current study addresses this gap by exploring the nature of firearm-related risk among disordered individuals as compared to others from the same communities...
January 2018: International Journal of Law and Psychiatry
Matthias Wiggenhauser, Moritz Bigalke, Martin Imseng, Armin Keller, Corey Archer, Wolfgang Wilcke, Emmanuel Frossard
Remobilization of zinc (Zn) from shoot to grain contributes significantly to Zn grain concentrations and thereby to food quality. On the other hand, strong accumulation of cadmium (Cd) in grain is detrimental for food quality. Zinc concentrations and isotope ratios were measured in wheat shoots (Triticum aestivum) at different growth stages to elucidate Zn pathways and processes in the shoot during grain filling. Zinc mass significantly decreased while heavy Zn isotopes accumulated in straw during grain filling (Δ66 Znfull maturity-flowering  = 0...
April 26, 2018: New Phytologist
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