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https://www.readbyqxmd.com/read/29332274/callitriche-cophocarpa-water-starwort-proteome-under-chromate-stress-evidence-for-induction-of-a-quinone-reductase
#1
Paweł Kaszycki, Aleksandra Dubicka-Lisowska, Joanna Augustynowicz, Barbara Piwowarczyk, Wojciech Wesołowski
Chromate-induced physiological stress in a water-submerged macrophyte Callitriche cophocarpa Sendtn. (water starwort) was tested at the proteomic level. The oxidative stress status of the plant treated with 1 mM Cr(VI) for 3 days revealed stimulation of peroxidases whereas catalase and superoxide dismutase activities were similar to the control levels. Employing two-dimensional electrophoresis, comparative proteomics enabled to detect five differentiating proteins subjected to identification with mass spectrometry followed by an NCBI database search...
January 13, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29329259/extreme-overvalued-beliefs-how-violent-extremist-beliefs-become-normalized
#2
Tahir Rahman
Extreme overvalued beliefs (EOB) are rigidly held, non-deusional beliefs that are the motive behind most acts of terrorism and mass shootings. EOBs are differentiated from delusions and obsessions. The concept of an overvalued idea was first described by Wernicke and later applied to terrorism by McHugh. Our group of forensic psychiatrists (Rahman, Resnick, Harry) refined the definition as an aid in the differential diagnosis seen in acts of violence. The form and content of EOBs is discussed as well as group effects, conformity, and obedience to authority...
January 12, 2018: Behavioral Sciences
https://www.readbyqxmd.com/read/29315636/leaf-transpiration-plays-a-role-in-phosphorus-acquisition-among-a-large-set-of-chickpea-genotypes
#3
Jiayin Pang, Hongxia Zhao, Ruchi Bansal, Emilien Bohuon, Hans Lambers, Megan H Ryan, Kadambot H M Siddique
Low availability of inorganic phosphorus (P) is considered a major constraint for crop productivity worldwide. A unique set of 266 chickpea (Cicer arietinum L.) genotypes, originating from 29 countries and with diverse genetic background were used to study P-use efficiency. Plants were grown in pots containing sterilised river sand supplied with P at a rate of 10 μg P g-1 soil as FePO4 , a poorly soluble form of P. The results showed large genotypic variation in plant growth, shoot P content, physiological P-use efficiency and P-utilisation efficiency in response to low-P supply...
January 9, 2018: Plant, Cell & Environment
https://www.readbyqxmd.com/read/29300872/a-generic-individual-based-model-to-simulate-morphogenesis-c-n-acquisition-and-population-dynamics-in-contrasting-forage-legumes
#4
Gaëtan Louarn, Lucas Faverjon
Background and Aims: Individual-based models (IBMs) are promising tools to disentangle plant interactions in multi-species grasslands and foster innovative species mixtures. This study describes an IBM dealing with the morphogenesis, growth and C-N acquisition of forage legumes that integrates plastic responses from functional-structural plant models. Methods: A generic model was developed to account for herbaceous legume species with contrasting above- and below-ground morphogenetic syndromes and to integrate the responses of plants to light, water and N...
December 29, 2017: Annals of Botany
https://www.readbyqxmd.com/read/29300300/determination-of-multi-class-mycotoxins-in-tartary-buckwheat-by-ultra-fast-liquid-chromatography-coupled-with-triple-quadrupole-mass-spectrometry
#5
Guixing Ren, Yichen Hu, Jinming Zhang, Liang Zou, Gang Zhao
Considering crops are susceptible to toxicogenic fungi during plantation, pre-processing and storage, an ultra-fast liquid chromatography coupled with triple quadrupole mass spectrometry (UFLC-QTrap-MS/MS) method was developed and validated for simultaneous determination of the 12 most frequent mycotoxins, including aflatoxin B₁, B₂, G₁, G₂, HT-2, T-2 toxin, ochratoxin A, fumonisin B₁, B₂, zearalanone, zearalenone, and deoxynivalenol, in 14 batches of Tartary buckwheat cultivar, collected from different origins in Sichuan Province, China...
January 4, 2018: Toxins
https://www.readbyqxmd.com/read/29299269/salinity-tolerance-of-three-competing-rangeland-plant-species-studies-in-hydroponic-culture
#6
Joseph K Sagers, Blair L Waldron, Joseph Earl Creech, Ivan W Mott, Bruce Bugbee
Halogeton (Halogeton glomeratus) is an invasive species that displaces Gardner's saltbush (Atriplex gardneri) on saline rangelands, whereas, forage kochia (Bassia prostrata) potentially can rehabilitate these ecosystems. Salinity tolerance has been hypothesized as the predominant factor affecting frequency of these species. This study compared relative salinity tolerance of these species, and tall wheatgrass (Thinopyrum ponticum) and alfalfa (Medicago sativa). Plants were evaluated in hydroponics, eliminating the confounding effects of drought, for 28 days at 0, 150, 200, 300, 400, 600, and 800 mmol/L NaCl...
December 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/29294778/australian-mass-shootings-an-analysis-of-incidents-and-offenders
#7
Samara McPhedran
Mass shooting events are relatively underresearched, and most study comes from the United States. Despite significant international interest, little is known about other countries' experiences of these events. The current study examines Australian mass shooting incidents and offenders, with emphasis on mental illness, life strains, and offenders' life histories. Australia had 14 mass shootings between 1964 and 2014. Most offenders experienced acute life stressors and/or chronic strains leading up to the event; however, diagnosed mental illness was less commonly documented...
June 1, 2017: Journal of Interpersonal Violence
https://www.readbyqxmd.com/read/29294766/cumulative-trauma-and-adjustment-in-women-exposed-to-a-campus-shooting-examining-the-role-of-appraisals-and-social-support
#8
Derrecka M Boykin, Qweandria T Dunn, Holly K Orcutt
Experiencing repeated trauma can have increasingly detrimental effects on psychosocial functioning after subsequent stressors. These effects may be intensified for victims of interpersonal traumas given that these events are often associated with heightened risk for adverse outcomes. To better understand this relationship, the present study prospectively examined the effect of pre-shooting trauma exposure (i.e., interpersonal vs. non-interpersonal trauma) on psychological functioning (i.e., posttraumatic stress symptoms, depression) following a mass campus shooting...
May 1, 2017: Journal of Interpersonal Violence
https://www.readbyqxmd.com/read/29291455/high-resolution-full-scan-liquid-chromatography-mass-spectrometry-comprehensive-screening-in-sports-antidoping-urine-analysis
#9
Wadha Abushareeda, Ariadni Vonaparti, Khadija Al Saad, Moneera Almansoori, Mbarka Meloug, Amal Saleh, Rodrigo Aguilera, Yiannis Angelis, Peter L Horvatovich, Arjen Lommen, Mohammed Alsayrafi, Costas Georgakopoulos
The aim of this paper is to present the development and validation of a high-resolution full scan (HR-FS) electrospray ionization (ESI) liquid chromatography coupled to quadrupole Orbitrap mass spectrometer (LC/Q/Orbitrap MS) platform for the screening of prohibited substances in human urine according to World Antidoping Agency (WADA) requirements. The method was also validated for quantitative analysis of six endogenous steroids (epitestosterone, testosterone, 5α-dihydrotestosterone, dehydroepiandrosterone, androsterone and etiocholanolone) in their intact sulfates form...
December 21, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29285645/analysis-of-ibuprofen-and-its-main-metabolites-in-roots-shoots-and-seeds-of-cowpea-vigna-unguiculata-l-walp-using-liquid-chromatography-quadrupole-time-of-flight-mass-spectrometry-uptake-metabolism-and-translocation
#10
Yolanda Picó, Rodrigo Alvarez-Ruiz, Leonard Wijaya, Ahmed Alfarhan, Mohammed Alyemeni, Damià Barceló
A liquid chromatography quadruple time-of-flight mass spectrometry (LC-QqTOF-MS/MS) method was developed for simultaneous quantitative analysis of ibuprofen (IBU), 1- and 2-hydroxyibuprofen (1-OH IBU and 2-OH IBU), and carboxyibuprofen (CBX IBU) while preserving the ability of the instrument to get precursor and product ion mass spectra of non-target compounds. The trigger was the precursor ions reaching 100 cps intensity. Sample preparation was carried out by ultrasound solid-liquid extraction with methanol as extraction solvent at pH < 2 followed by solid-phase extraction (SPE) clean-up using STRATA-X cartridges and methanol as an eluent...
December 29, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29281721/physiological-and-biochemical-responses-involved-in-water-deficit-tolerance-of-nitrogen-fixing-vicia-faba
#11
Ablaa Kabbadj, Bouchra Makoudi, Mohammed Mouradi, Nicolas Pauly, Pierre Frendo, Cherki Ghoulam
Climate change is increasingly impacting the water deficit over the world. Because of drought and the high pressure of the rising human population, water is becoming a scarce and expensive commodity, especially in developing countries. The identification of crops presenting a higher acclimation to drought stress is thus an important objective in agriculture. The present investigation aimed to assess the adaptation of three Vicia faba genotypes, Aguadulce (AD), Luz d'Otonio (LO) and Reina Mora (RM) to water deficit...
2017: PloS One
https://www.readbyqxmd.com/read/29279218/rampage-shootings-an-historical-empirical-and-theoretical-overview
#12
REVIEW
Michael Rocque, Grant Duwe
Rampage shootings is a relatively new term to describe a phenomenon that has a long history. Rampage shootings are mass shootings (generally defined as involving four or more victims), taking place in a public location, with victims chosen randomly or for symbolic purposes. These shootings are isolated events, meaning they are not connected to another criminal act (such as robbery or terrorism). Research suggests that rampage shootings are not a new phenomenon, but have occurred throughout the US since the early 1900s...
February 2018: Current Opinion in Psychology
https://www.readbyqxmd.com/read/29278819/quantitative-determination-of-carcinogenic-mycotoxins-in-human-and-animal-biological-matrices-and-animal-derived-foods-using-multi-mycotoxin-and-analyte-specific-high-performance-liquid-chromatography-tandem-mass-spectrometric-methods
#13
Xiaoqin Cao, Xiaofei Li, Jian Li, Yunhui Niu, Lu Shi, Zhenfeng Fang, Tao Zhang, Hong Ding
A sensitive and reliable multi-mycotoxin-based method was developed to identify and quantify several carcinogenic mycotoxins in human blood and urine, as well as edible animal tissues, including muscle and liver tissue from swine and chickens, using liquid chromatography-tandem mass spectrometry (LC-MS/MS). For the toxicokinetic studies with individual mycotoxins, highly sensitive analyte-specific LC-MS/MS methods were developed for rat plasma and urine. Sample purification consisted of a rapid 'dilute and shoot' approach in urine samples, a simple 'dilute, evaporate and shoot' approach in plasma samples and a 'QuEChERS' procedure in edible animal tissues...
November 21, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29273904/advanced-lc-ms-based-methods-to-study-the-co-occurrence-and-metabolization-of-multiple-mycotoxins-in-cereals-and-cereal-based-food
#14
REVIEW
Alexandra Malachová, Milena Stránská, Marta Václavíková, Christopher T Elliott, Connor Black, Julie Meneely, Jana Hajšlová, Chibundu N Ezekiel, Rainer Schuhmacher, Rudolf Krska
Liquid chromatography (LC) coupled with mass spectrometry (MS) is widely used for the determination of mycotoxins in cereals and cereal-based products. In addition to the regulated mycotoxins, for which official control is required, LC-MS is often used for the screening of a large range of mycotoxins and/or for the identification and characterization of novel metabolites. This review provides insight into the LC-MS methods used for the determination of co-occurring mycotoxins with special emphasis on multiple-analyte applications...
December 22, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29251356/hplc-ms-fms-analysis-of-anthocyanins-in-human-plasma-and-urine-using-protein-precipitation-and-dilute-and-shoot-sample-preparation-methods-respectively
#15
Junguo Liu, Jiuxue Song, Karen Huang, Deborah Michel, Jim Fang
A high performance liquid chromatography tandem-mass spectrometry (HPLC-MS/MS) method has been developed to analyze anthocyanins in urine and plasma to further understand their absorption, distribution, metabolism and excretion. The method employed a Synergi RP-Max column (250 x 4.6 mm, 4 μm) and an API 4000 mass spectrometer. A gradient elution system consisted of mobile phase A (water/1% formic acid) and mobile phase B (acetonitrile) with a flow rate of 0.60 ml/min. The gradient was initiated at 5% B, increased to 40% B at 15 min, and then increased to 100% B at 22 min...
December 18, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/29250082/physiological-and-proteomic-analysis-of-the-rice-mutant-cpm2-suggests-a-negative-regulatory-role-of-jasmonic-acid-in-drought-tolerance
#16
Rohit Dhakarey, Manish L Raorane, Achim Treumann, Preshobha K Peethambaran, Rachel R Schendel, Vaidurya P Sahi, Bettina Hause, Mirko Bunzel, Amelia Henry, Ajay Kohli, Michael Riemann
It is widely known that numerous adaptive responses of drought-stressed plants are stimulated by chemical messengers known as phytohormones. Jasmonic acid (JA) is one such phytohormone. But there are very few reports revealing its direct implication in drought related responses or its cross-talk with other phytohormones. In this study, we compared the morpho-physiological traits and the root proteome of a wild type (WT) rice plant with its JA biosynthesis mutant coleoptile photomorphogenesis 2 (cpm2), disrupted in the allene oxide cyclase (AOC) gene, for insights into the role of JA under drought...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29237795/the-headache-of-terror-a-matched-cohort-study-of-adolescents-from-the-ut%C3%A3-ya-and-the-hunt-study
#17
Synne Øien Stensland, John-Anker Zwart, Tore Wentzel-Larsen, Grete Dyb
OBJECTIVE: To elaborate the risk of headache among adolescent survivors exposed to terror. METHODS: On July 22, 2011, a lone man opened gunfire, killing 69 people at a summer camp for adolescents on the Utøya islet in Norway. All 358 adolescent survivors 13 to 20 years of age were invited to participate in the Utøya interview study. Among the 213 (59%) respondents, half (49%) were male, the mean age was 17.7 years, and 13 (6%) were severely injured. For each survivor, 8 matched controls were drawn from the population-based Young-HUNT3 Study, conducted between 2006 and 2008, with a participation rate of 73%...
December 13, 2017: Neurology
https://www.readbyqxmd.com/read/29222451/alternate-partial-root-zone-drip-irrigation-improves-water-and-nitrogen-use-efficiencies-of-sweet-waxy-maize-with-nitrogen-fertigation
#18
Fengbei Fu, Fusheng Li, Shaozhong Kang
Alternate partial root-zone drip irrigation (ADI) or fertigation has favorable effect on crop water- and nitrogen- use efficiencies (WUE and NUE). However, the advantage of combined application of ADI and nitrogen fertigation on crop WUE and NUE remains unclear. A pot experiment was conducted to investigate the impact of three irrigation methods (CDI conventional drip irrigation (both halves of pot irrigated), ADI (both halves of pot alternatively irrigated) and FDI fixed partial root-zone drip irrigation (fixed half of pot irrigated)) and five nitrogen treatments (F0 no N supplied, F1-F4 0...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29220089/potato-plants-solanum-tuberosum-l-are-chloride-sensitive-is-this-dogma-valid
#19
Birgit W Hütsch, Katrin Keipp, Ann-Kathrin Glaser, Sven Schubert
BACKGROUND: Chloride sensitivity of the potato (Solanum tuberosum L.) cultivars Marabel and Désirée was investigated in two pot experiments (soil/sand mixture and hydroponics). It was tested whether there are differential effects of KCl and K2 SO4 application on tuber yield and tuber quality, and whether both potato cultivars differ in their chloride sensitivity. RESULTS: Tuber yield, dry matter percentage of the tubers, starch concentration and starch yield were not significantly affected by potassium source (K2 SO4 or KCl)...
December 8, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29215732/silicon-affects-seed-development-and-leaf-macrohair-formation-in-brachypodium-distachyon
#20
Sylwia Głazowska, Emiko Murozuka, Daniel Pergament Persson, Pedro Humberto Castro, Jan K Schjoerring
Silicon (Si) has many beneficial effects in plants, especially for the survival of biotic and abiotic stresses. However, Si may negatively affect the quality of lignocellulosic biomass for bioenergy purposes. Despite many studies, the regulation of Si distribution and deposition in plants remains to be fully understood. Here, we have identified the Brachypodium distachyon mutant low-silicon 1 (Bdlsi1-1), with impaired channelling function of the Si influx transporter BdLSI1, resulting in a substantial reduction of Si in shoots...
December 7, 2017: Physiologia Plantarum
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