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N A Nik Muhamad, R Hawari, H Shafie
Aluminium phosphide (ALP) is highly toxic and poisoning can result in high mortality rates. A 26-year-old female who allegedly ingested a toxic dose of ALP presented with vomiting and diarrhoea. She developed cardiac arrest with refractory pulseless ventricular tachycardia. Despite aggressive resuscitation, she succumbed to death seven hours following ingestion. In cases like this, a better outcome can be achieved with early arrival, prompt diagnosis, aggressive resuscitation and intensive monitoring.
August 2016: Medical Journal of Malaysia
Giorgio Lanzani, Ari P Seitsonen, Marcella Iannuzzi, Kari Laasonen, Simo Olavi Pehkonen
The chemistry of aluminium or oxo-aluminium in water is still relatively unknown, although it is the basis for many chemical and industrial processes, including floc- culation in water treatment plants. Trimeric species have a predominant role in the formation of the Keggin cations, which are the basic building block of aluminium- based chemicals. Despite this, the details of the structural evolution of these small solvated clusters and how this is related to the processes leading to the formation of larger aggregates is still an open issue...
October 21, 2016: Journal of Physical Chemistry. B
Monika Machoy, Julia Seeliger, Mariusz Lipski, Anna Wójcicka, Tomasz Gedrange, Krzysztof Woźniak
Braces as foreign bodies in the mouth carry a risk of side effects and toxicity to the human body. This article presents the results indicating the possible toxic effects of tools used for cleaning the enamel after the completion of orthodontic treatment. The studies were carried out in vitro. The procedure of enamel etching, bonding orthodontic metal brackets, and enamel cleaning after their removal was performed under laboratory conditions. The enamel microstructure and elements present on its surface were evaluated using the scanning electron microscope (SEM)...
2016: BioMed Research International
Eksp Lomakin
This article was designed to discuss the possibility of discovering the trace deposits of a metal (aluminium) sedimented on various objects with the use of the indicator alizarin S in order to determine the distance of the shot and identify the concrete traumatic weapons of the «Osa», «Strazhnik» type used for the purpose.
2016: Sudebno-meditsinskaia Ekspertiza
A Molina, M García-Gargallo, E Montero, A Tobías, M Sanz, C Martín
OBJECTIVE: This systematic review aimed to evaluate the scientific evidence on the efficacy of desensitizing mouthwashes for the treatment of dentin hypersensitivity (DH) and root sensitivity (RS). MATERIAL AND METHODS: A thorough search in MEDLINE, PubMed and Cochrane Plus Library was conducted up to February 2015. Randomized clinical trials, parallel, double-blinded and placebo-controlled, with a follow-up of at least 6 weeks, reporting changes on response to tactile stimuli, thermal/evaporative stimuli or patients' subjective assessment of the pain experienced during their daily life after the home use of desensitizing mouthwashes were considered for inclusion...
October 20, 2016: International Journal of Dental Hygiene
Behrooz Hashemi-Domeneh, Nasim Zamani, Hossein Hassanian-Moghaddam, Mitra Rahimi, Shahin Shadnia, Peyman Erfantalab, Ali Ostadi
The use of pesticides such as aluminium phosphide (AlP) has increased in the recent years and improved the quantity and quality of agricultural products in a number of developing countries. The downside is that AlP causes severe chronic and acute health effects that have reached major proportions in countries such as India, Iran, Bangladesh, and Jordan. Nearly 300,000 people die due to pesticide poisoning in the world every year. Poisoning with AlP accounts for many of these deaths. Unfortunately, at the same time, there is no standard treatment for it...
September 1, 2016: Arhiv za Higijenu Rada i Toksikologiju
Mani Sengoden, Ryo Irie, Tharmalingam Punniyamurthy
Al(salen)Cl-catalyzed efficiently the enantiospecific (3+2) cycloaddition of unactivated chiral aziridines with isothiocyanates to furnish functionalized iminothiazolidines at room temperature with 94-99% ee. The use of aluminum Lewis acid as the catalyst, high optical purities, mild reaction conditions, broad substrate scope and the atom economy are the significant practical features.
October 12, 2016: Journal of Organic Chemistry
Moritz-C Schlegel, Daniel Többens, Roman Svetogorov, Martin Krüger, Norbert Stock, Helge Reinsch, Dirk Wallacher, Ross Stewart, Margarita Russina
We have studied the mechanism of hydrogen storage in the aluminium based metal-organic framework CAU-1 or [Al4(OH)2(OCH3)4(O2C-C6H3NH2-CO2)3] using a complementary multidisciplinary approach of volumetric gas sorption analysis, in situ neutron diffraction and spectroscopy and ab initio calculations. The structure of CAU-1 forms two different types of microporous cages: (i) an octahedral cage with a diameter of about 10 Å and (ii) a tetrahedral cage with a diameter of about 5 Å. Though all metal sites of CAU-1 are fully coordinated, the material exhibits relatively high storage capacities, reaching 4 wt% at a temperature of 70 K...
October 12, 2016: Physical Chemistry Chemical Physics: PCCP
Noa Ophir, Amir Bar Shai, Yifat Alkalay, Shani Israeli, Rafi Korenstein, Mordechai R Kramer, Elizabeth Fireman
The manufacture of kitchen and bath countertops in Israel is based mainly on artificial stone that contains 93% silica as natural quartz, and ∼3500 workers are involved in cutting and processing it. Artificial stone produces high concentrations of silica dust. Exposure to crystalline silica may cause silicosis, an irreversible lung disease. Our aim was to screen exposed workers by quantitative biometric monitoring of functional and inflammatory parameters. 68 exposed artificial stone workers were compared to 48 nonexposed individuals (controls)...
January 2016: ERJ Open Research
Lewis O J Killin, John M Starr, Ivy J Shiue, Tom C Russ
BACKGROUND: Dementia risk reduction is a major and growing public health priority. While certain modifiable risk factors for dementia have been identified, there remains a substantial proportion of unexplained risk. There is evidence that environmental risk factors may explain some of this risk. Thus, we present the first comprehensive systematic review of environmental risk factors for dementia. METHODS: We searched the PubMed and Web of Science databases from their inception to January 2016, bibliographies of review articles, and articles related to publically available environmental data...
October 12, 2016: BMC Geriatrics
Bishav Mohan, Vivek Gupta, Bhupinder Singh, Sarju Ralhan
No abstract text is available yet for this article.
January 2016: Journal of the Association of Physicians of India
Saida Haider, Saiqa Tabassum, Tahira Perveen
Cognitive decline is found to be a common feature of various neurological disorders like Alzheimer's disease (AD). In order to recapitulate AD associated cognitive deficits and to plan therapeutic strategies researchers have developed various preclinical dementia models to recapitulate different aspects of cognitive domains affected in AD brain. So, the present study was aimed to compare alterations in previously reported dementia models i.e. pharmacological (Scopolamine-induced and corticosterone-induced), Environmental (Aluminium-induced and noise-stress) and physiological (natural aging) models in rats in a single experimental study across three cognitive domains spatial, recognition, and associative memory and associated alterations in their oxidative status and neurochemical profile to select appropriate dementia model...
October 7, 2016: Brain Research Bulletin
C Volkringer, C Falaise, P Devaux, R Giovine, V Stevenson, F Pourpoint, O Lafon, M Osmond, C Jeanjacques, B Marcillaud, J C Sabroux, T Loiseau
We report the study of the resistance of archetypal MOFs (MILs, HKUST-1, UiO-66, and ZIF-8) under gamma irradiation. The different porous solids were irradiated with doses up to 1.75 MGy. All the MOFs constructed with transition metals (Cu(2+), Zn(2+), Zr(4+)) exhibit an evident destruction of the framework, whereas the compounds constructed with aluminium remain intact.
October 13, 2016: Chemical Communications: Chem Comm
Naoto Suzuki, Takeshi Fujita, Konstantin Yu Amsharov, Junji Ichikawa
Selective synthesis of benzo[f]tetraphenes or benzo[g]chrysenes was achieved via aromatic C-F bond cleavage and unprecedented regioselective C-C bond formation depending upon the choice of aluminium reagents. On treatment with AlCl3, 2-(biphenyl-2-yl)-1-fluoronaphthalenes afforded exclusively benzo[f]tetraphenes via C-C bond formation on the carbon atom γ to the original position of the fluorine substituent. In contrast, α-selective C-C bond formation was promoted by treatment with γ-Al2O3 to give benzo[g]chrysenes...
October 7, 2016: Chemical Communications: Chem Comm
Kasper T Møller, Alexander S Fogh, Mark Paskevicius, Jørgen Skibsted, Torben R Jensen
Metal borides are often decomposition products from metal borohydrides and thus play a role in the reverse reaction where hydrogen is absorbed. In this work, aluminium boride, AlB2, has been investigated as a boron source for the formation of borohydrides under hydrogen pressures of p(H2) = 100 or 600 bar at elevated temperatures (350 or 400 °C). The systems AlB2-MHx (M = Li, Na, Mg, Ca) have been investigated, producing LiBH4, NaBH4 and Ca(BH4)2, whereas the formation of Mg(BH4)2 was not observed at T = 400 °C and p(H2) = 600 bar...
October 5, 2016: Physical Chemistry Chemical Physics: PCCP
Martin Schulc, Petr Baroň, Evžen Novák, Bohumil Jánský, Davit Harutyunyan
The presented paper aims to compare various measured neutron induced reaction rates in Aluminium with computed ones in different nuclear data libraries. A (252)Cf neutron source with emission rate of 9.53E8 n/s was used. Reactions involved in the study were (27)Al(n,g), (27)Al (n,p) and (27)Al (n,α).
October 4, 2016: Applied Radiation and Isotopes
Mohd Hakim Ab Halim, Aznah Nor Anuar, Nur Syahida Abdul Jamal, Siti Izaidah Azmi, Zaini Ujang, Mustafa M Bob
The effect of temperature on the efficiency of organics and nutrients removal during the cultivation of aerobic granular sludge (AGS) in biological treatment of synthetic wastewater was studied. With this aim, three 3 L sequencing batch reactors (SBRs) with influent loading rate of 1.6 COD g (L d)(-1) were operated at different high temperatures (30, 40 and 50 °C) for simultaneous COD, phosphate and ammonia removal at a complete cycle time of 3 h. The systems were successfully started up and progressed to steady state at different cultivation periods...
October 6, 2016: Journal of Environmental Management
Vagne Melo Oliveira, Caio Rodrigo Dias Assis, Helane Maria Silva Costa, Raquel Pereira Freitas Silva, Juliana Ferreira Santos, Luiz Bezerra Carvalho, Ranilson Souza Bezerra
Aluminium is a major pollutant due to its constant disposal in aquatic environments through anthropogenic activities. The physiological effects of this metal in fish are still scarce in the literature. This study investigated the in vivo and in vitro effects of aluminium sulfate on the activity of enzymes from Nile tilapia (Oreochromis niloticus): brain acetylcholinesterase (AChE), muscle cholinesterases (AChE-like and BChE-like activities), pepsin, trypsin, chymotrypsin and amylase. Fish were in vivo exposed during 14days when the following experimental groups were assayed: control group (CG), exposure to Al2(SO4)3 at 1μg·mL(-1) (G1) and 3μg·mL(-1) (G3) (concentrations compatible with the use of aluminium sulfate as coagulant in water treatment)...
October 4, 2016: Comparative Biochemistry and Physiology. Toxicology & Pharmacology: CBP
Guangchao Liu, Shan Gao, Huiyu Tian, Wenwen Wu, Hélène S Robert, Zhaojun Ding
Auxin is necessary for the inhibition of root growth induced by aluminium (Al) stress, however the molecular mechanism controlling this is largely unknown. Here, we report that YUCCA (YUC), which encodes flavin monooxygenase-like proteins, regulates local auxin biosynthesis in the root apex transition zone (TZ) in response to Al stress. Al stress up-regulates YUC3/5/7/8/9 in the root-apex TZ, which we show results in the accumulation of auxin in the root-apex TZ and root-growth inhibition during the Al stress response...
October 2016: PLoS Genetics
Hangzhou Xu, Haiyan Pei, Hongdi Xiao, Yan Jin, Xiuqing Li, Wenrong Hu, Chunxia Ma, Jiongming Sun, Hongmin Li
This is the first study to systematically investigate the different behaviors of Microcystis aeruginosa in the sludges formed by AlCl3, FeCl3, and polymeric aluminium ferric chloride (PAFC) coagulants during storage. Results show that the viability of Microcystis aeruginosa in PAFC sludge was stronger than that of cells in either AlCl3 or FeCl3 sludge after the same storage time, while the cells' viability in the latter two systems stayed at almost the same level. In AlCl3 and FeCl3 sludges high concentrations of Al and Fe were toxic to Microcystis aeruginosa, whereas in PAFC sludge low levels of Al showed little toxic effect on Microcystis aeruginosa growth and moderate amounts of Fe were beneficial to growth...
October 7, 2016: Scientific Reports
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