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https://www.readbyqxmd.com/read/28431843/on-the-complex-interaction-between-mathematics-and-the-sciences-of-living-systems-comment-on-move-me-astonish-me-delight-my-eyes-and-brain-the-vienna-integrated-model-of-top-down-and-bottom-up-processes-in-art-perception-vimap-and-corresponding-affective-evaluative
#1
https://www.readbyqxmd.com/read/28430272/molecular-rare-earth-metal-alumosilicates
#2
Raúl Huerta-Lavorie, Dana V Báez-Rodríguez, Jessica García-Ríos, Emiliano Martínez-Vollbert, Diego Martínez-Otero, Vojtech Jancik
The synthesis and stabilization of molecular four-coordinated lanthanide alumosilicates was achieved by the use of a highly encumbered alumosilicate ligand LAl(OH·thf)(μ-O)Si(OH)(OtBu)2 (1, L = HC{C(Me)N(2,6-iPr2C6H3)}2). Reactions between 1 and tris-cyclopentadienyl lanthanides (LnCp3; Ln = Ce, Nd, Sm, Gd, Tb, Dy, Y, Er) derived in the isolation of eight compounds (2-9) where the ligand is observed in three different bonding modes: adducts (2, 3), spirocyclic (4) or cyclic (5-9) coordination compounds. The observed reactivity can be related to the ionic radius of the lanthanide atom and the nature of the oxygen donor-atom from the hydroxide (Al-OH) or hydroxyl (Si-OH) moieties in 1...
April 21, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28426839/medical-history-in-the-hellenic-journal-of-nuclear-medicine
#3
EDITORIAL
Andreas Otte, Byeong Cheol Ahn
The Hellenic Journal of Nuclear Medicine is about to celebrate its 20th anniversary end of 2017. On board of the editorial team since 2003, this journal has influenced me like a good friend over the many past years. From time to time, the journal has published interesting and valuable historical notes. They show that nuclear medicine has a history and that medicine is its basis. They also teach us today, and some of the ancient perspectives and approaches are still valid. The reader of HJNM may be interested in these historical contributions, as they are timeless...
January 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28418053/a-new-route-for-the-preparation-of-enriched-iso-polylactide-from-rac-lactide-via-a-lewis-acid-catalyzed-ring-opening-of-an-epoxide
#4
Mathew Anker, Choumini Balasanthiran, Vagulejan Balasanthiran, Malcolm H Chisholm, Savithra Jayaraj, Kaleb Mathieu, Parichat Piromjitpong, Siriwan Praban, Balaram Raya, William J Simonsick
Tetraphenylporphyrin aluminum(iii) salts, TPPAlX, where X = Me, OEt, OiPr, OCHMeCH2Cl, and Cl, and bis(triphenylphosphine)imminium chloride, PPN(+)Cl(-) (1 : 1) react with rac-lactide, rac-LA, in neat propylene oxide, PO, to yield chains of enriched isotactic polylactide, PLA, with end groups of PO-Cl and with time these yield cyclic polymers (PO)n(PLA) where n = 2 or 3 and even higher. There is no reaction between TPPAlOR (R = Et or (i)Pr), PPN(+)Cl(-), and rac-LA in neat THF at 25 °C even though TPPAlOR (R = Et or (i)Pr) and PPN(+)Cl(-) in neat PO yields polypropylene oxide with a terminal OR group, H(PO)nOR...
April 18, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28390411/prediction-accuracy-of-intraocular-lens-power-calculation-methods-after-laser-refractive-surgery
#5
Yubo Wu, Songyu Liu, Rongfeng Liao
BACKGROUND: This study aimed to evaluate the prediction accuracy of postoperative refractions using partial coherence interferometry (IOL-Master) and applanation ultrasound (AL-3000) assisted with corneal topography (TMS-4) in eyes that had undergone myopic laser-assisted in situ keratomileusis (LASIK). METHODS: Haigis-L formula, Koch-Maloney method using Haigis formula, Shammas clinically derived K-value (simulated keratometric value) correction (Shammas c.d.) using Haigis formula, and Shammas post-LASIK (Shammas-PL) formula were used in eyes with myopic LASIK...
April 8, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28347458/desferrioxamine-and-desferrioxamine-caffeine-as-carriers-of-aluminum-and-gallium-to-microbes-via-the-trojan-horse-effect
#6
Jesus Antonio Alvarado Huayhuaz, Hector Aguilar Vitorino, Othon Souto Campos, Silvia Helena Pires Serrano, Telma Mary Kaneko, Breno Pannia Espósito
Iron acquisition by bacteria and fungi involves in several cases the promiscuous usage of siderophores. Thus, antibiotic resistance from these microorganisms can be circumvented through a strategy of loading toxic metals into siderophores (Trojan Horse Effect). Desferrioxamine (dfo) and its cell-permeant derivative desferrioxamine-caffeine (dfcaf) were complexed with aluminum or gallium for this purpose. The complexes Me(dfo) and Me(dfcaf) (Me=Al(3+) and Ga(3+)) were synthesized and characterized by mass spectroscopy and cyclic voltammetry...
May 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28344216/major-bleeding-events-in-jordanian-patients-undergoing-percutaneous-coronary-intervention-pci-incidence-associated-factors-impact-on-prognosis-and-predictability-of-the-crusade-bleeding-risk-score-results-from-the-first-jordanian-pcr-pcr1
#7
Mohamad Jarrah, Ayman Hammoudeh, Osama Okkeh, Yousef Khader, Sahem Gharaibeh, Laith Nasser, Amro Rasheed, Ayed Al-Hindi, Mohammad Mohealdeen, Haneen Kharabsheh, Hanan Abunimeh, Enas Hijjih, Lina Tashman, Delia Omar, Nadeen Kufoof
OBJECTIVE: Determine the incidence of major bleeding events, their risk factors, and their impact on prognosis in Jordanian patients undergoing percutaneous coronary intervention (PCI). Evaluate the ability of the CRUSADE bleeding risk score (BRS) to predict major bleeding. METHODS: Major bleeding events were defined according to the CRUSADE classification and their incidence was evaluated from hospital admission to one year of follow up. The CRUSADE bleeding risk score was calculated for each patient during the index admission...
March 22, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28328213/reversible-coordination-of-boron-aluminum-zinc-magnesium-and-calcium-hydrogen-bonds-to-bent-cul2-fragments-heavy-%C3%AF-complexes-of-the-lightest-coinage-metal
#8
Alexandra Hicken, Andrew J P White, Mark R Crimmin
A series of copper(I) complexes bearing electron-deficient β-diketiminate ligands have been prepared. The study includes [{{ArNC(CR3)}2CH}Cu(η(2)-toluene)n] (Ar = Mes, R = F, n = 0.5, [12·tol]; Ar = C6F5, R = Me, n = 1, [2·tol]; Ar = 2,6-Cl2C6H3, R = H, n = 0.5, [32·tol]). Reactions of [1-3n·tol] with boranes, alanes, a zinc hydride, a magnesium hydride, and a calcium hydride generate the corresponding σ complexes ([1-3·B], [3·B'], [3·Al], [3·Al'], [1-3·Zn], [1·Mg], and [1·Ca]). These species all form reversibly, being in equilibrium with the arene solvates in solution...
March 22, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28286644/soldiers-as-subjects-of-medical-research-comments-on-hassidim-et-al-on-ethical-standards-of-the-israel-defense-force
#9
EDITORIAL
Asa Kasher
In 2008 a group of former soldiers of the Israel Defense Force (IDF) sued the Ministry of Defense and others, claiming they had suffered from medical problems that resulted from an IDF medical experiment in which they had participated in the 1970s. There was no compelling medical evidence with respect to causal relationships between their participation in the experiment and their later medical problems. The President of the District Court, Justice Hila Gerstl, appointed me, with the consent of the parties, to write a deposition with respect to the ethical aspects of the case...
2017: Israel Journal of Health Policy Research
https://www.readbyqxmd.com/read/28247498/an-aluminum-fluoride-complex-with-an-appended-ammonium-salt-as-an-exceptionally-active-cooperative-catalyst-for-the-asymmetric-carboxycyanation-of-aldehydes
#10
Daniel Brodbeck, Florian Broghammer, Jan Meisner, Julian Klepp, Delphine Garnier, Wolfgang Frey, Johannes Kästner, René Peters
Al-F bonds are among the most stable σ bonds known, exhibiting an even higher bond energy than Si-F bonds. Despite a stability advantage and a potentially high Lewis acidity of Al-F complexes, they have not been described as structurally defined catalysts for enantioselective reactions. We show that Al-F salen complexes with appended ammonium moieties give exceptional catalytic activity in asymmetric carboxycyanations. In addition to aromatic aldehydes, enal and aliphatic substrates are well accepted. Turnover numbers up to around 10(4) were achieved, whereas with previous catalysts 10(1) -10(2) turnovers were typically attained...
March 1, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28242191/comprehensive-literature-review-of-factors-influencing-medication-safety-in-nursing-homes-using-a-systems-model
#11
REVIEW
Ali Azeez Al-Jumaili, William R Doucette
OBJECTIVES: The objectives of this review were to identify the work system factors influencing medication safety measures [adverse drug events (ADEs), adverse drug reactions, or medication errors (MEs)], to determine the incidence of ADEs, and describe the most common ADEs in nursing homes (NHs). METHODS: A comprehensive literature review was conducted using PubMed and CINAHL to identify studies investigating factors that influence ADEs, adverse drug reactions, and MEs in NHs and skilled nursing facilities...
February 24, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28230869/a-combined-high-temperature-experimental-and-theoretical-kinetic-study-of-the-reaction-of-dimethyl-carbonate-with-oh-radicals
#12
Fethi Khaled, Binod Raj Giri, Milán Szőri, Tam V-T Mai, Lam K Huynh, Aamir Farooq
The reaction kinetics of dimethyl carbonate (DMC) and OH radicals were investigated behind reflected shock waves over the temperature range of 872-1295 K and at pressures near 1.5 atm. Reaction progress was monitored by detecting OH radicals at 306.69 nm using a UV laser absorption technique. The rate coefficients for the reaction of DMC with OH radicals were extracted using a detailed kinetic model developed by Glaude et al. (Proc. Combust. Inst. 2005, 30(1), 1111-1118). The experimental rate coefficients can be expressed in Arrhenius form as: kexpt'l = 5...
February 23, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28208780/preparation-of-constrained-geometry-titanium-complexes-of-1-2-azasilinane-framework-for-ethylene-1-octene-copolymerization
#13
Seul Lee, Seung Soo Park, Jin Gu Kim, Chung Sol Kim, Bun Yeoul Lee
The Me₂Si-bridged ansa-Cp/amido half-metallocene, [Me₂Si(η⁵-Me₄C₅)(N(t)Bu)]TiCl₂, termed a "constrained-geometry catalyst (CGC)", is a representative homogeneous Ziegler catalyst. CGC derivatives with the [1,2]azasilinane framework, in which the amide alkyl substituent is joined by the Si-bridge, were prepared, and the catalytic performances of these species was studied. Me₄C₅HSi(Me)(CH₂CH=CH₂)-NH(C(R)(R')CH=CH₂) (R, R' = H or methyl; Me₄C₅H = tetramethylcyclopentadienyl) was susceptible to ring closure metathesis (RCM) when treated with Schrock's Mo-catalyst to afford -Si(Me₄C₅H)(Me)CH₂CH=CHC(R)(R')NH- containing a six-membered ring framework...
February 9, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28180224/an-open-route-to-asymmetric-substituted-al-al-bonds-using-al-i-and-al-iii-precursors
#14
Bin Li, Subrata Kundu, Hongping Zhu, Helena Keil, Regine Herbst-Irmer, Dietmar Stalke, Gernot Frenking, Diego M Andrada, Herbert W Roesky
The reaction of LAl: (L = HC[C(Me)N(Ar)]2, Ar = 2,6-iPr2C6H3) and cAAC:→AlX3 (X = Cl, I) (cAAC = cyclic alkyl amino carbene) results in strikingly asymmetric Al(ii)-Al(ii) compounds LAl(X)-Al(X)2-cAAC [X = Cl (2a); I (2b)]. In these dialuminum(ii) compounds the two Al atoms bear different ligand environments. For a detailed insight into the structures, theoretical calculations were carried out.
February 9, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28179573/role-of-eruption-season-in-reconciling-model-and-proxy-responses-to-tropical-volcanism
#15
Samantha Stevenson, John T Fasullo, Bette L Otto-Bliesner, Robert A Tomas, Chaochao Gao
The response of the El Niño/Southern Oscillation (ENSO) to tropical volcanic eruptions has important worldwide implications, but remains poorly constrained. Paleoclimate records suggest an "El Niño-like" warming 1 year following major eruptions [Adams JB, Mann ME, Ammann CM (2003) Nature 426:274-278] and "La Niña-like" cooling within the eruption year [Li J, et al. (2013) Nat Clim Chang 3:822-826]. However, climate models currently cannot capture all these responses. Many eruption characteristics are poorly constrained, which may contribute to uncertainties in model solutions-for example, the season of eruption occurrence is often unknown and assigned arbitrarily...
February 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28156592/symptom-burden-and-distress-in-patients-with-cancer-in-africa
#16
(no author information available yet)
255 Background: Cancer has become a significant public health problem in Africa but still most diagnoses are made late, Sitas et al (2006). The need for palliative care is significant due to the late contact with health care providers and the many symptoms they present with. No study has been undertaken to assess symptomatology for these patients in Africa. OBJECTIVE: To study the prevalence of symptoms in patients with cancer in an African setting. METHODS: Symptom studies from records of patients with cancer referred to the Palliative Care Services at the Aga Khan University Hospital, Nairobi in 6 months...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28146180/perceptional-gaps-among-women-husbands-and-family-members-about-intentions-for-birthplace-a-cross-sectional-study
#17
Yoko Shimpuku, Frida Elikana Madeni, Shigeko Horiuchi, Sebalda Charles Leshabari
Objective: women are more likely to give birth at a health facility when their families agree with the birthplace. However, in rural areas of Tanzania, women are often marginalized from decision-making. This study predicted birthplace intention and identified factors to reduce perceptional gaps among pregnant women, husbands and family members. Method: explanatory cross-sectional survey was conducted in three villages in North Eastern Tanzania. Participants were 138 pregnant women and their families who answered the Birth Intention Questionnaire (BIQ), measuring knowledge, attitude, perceived behavioral control, subjective norms and intention for birthplace...
January 30, 2017: Revista Latino-americana de Enfermagem
https://www.readbyqxmd.com/read/28111948/hybridization-of-zinc-oxide-tetrapods-for-selective-gas-sensing-applications
#18
O Lupan, V Postica, J Gröttrup, A K Mishra, N H de Leeuw, J F C Carreira, J Rodrigues, N Ben Sedrine, M R Correia, T Monteiro, V Cretu, I Tiginyanu, D Smazna, Y K Mishra, R Adelung
In this work, the exceptionally improved sensing capability of highly porous three-dimensional (3-D) hybrid ceramic networks toward reducing gases is demonstrated for the first time. The 3-D hybrid ceramic networks are based on doped metal oxides (MexOy and ZnxMe1-xOy, Me = Fe, Cu, Al) and alloyed zinc oxide tetrapods (ZnO-T) forming numerous junctions and heterojunctions. A change in morphology of the samples and formation of different complex microstructures is achieved by mixing the metallic (Fe, Cu, Al) microparticles with ZnO-T grown by the flame transport synthesis (FTS) in different weight ratios (ZnO-T:Me, e...
February 1, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28076313/ethnopharmacological-investigation-of-the-aerial-part-of-phragmites-karka-poaceae
#19
Ramiz Ahmed Sultan, Mohammad Shah Hafez Kabir, Mir Muhammad Nasir Uddin, Mohi Uddin, Zobaer Al Mahmud, Sheikh Zahir Raihan, Nazmul Qais
BACKGROUND: In this ethnopharmacological study, methanolic extract of the aerial plant parts of Phragmites karka (Family: Poaceae) and its petroleum ether and carbon tetrachloride fractions were investigated for bioactivities in Swiss-albino mice, namely, analgesic, central nervous system (CNS) depressant, hypoglycemic, and antidiarrheal activity. METHODS: The cold methanolic extract of the aerial plant parts of Phragmites karka (MEPK) was first prepared, and it was then further fractionated as petroleum ether (PEFMEPK) and carbon tetrachloride (CTFMEPK) fractions...
January 11, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/28034863/huang-me-ye-yc-chen-sr-et-al-use-of-all-trans-retinoic-acid-in-the-treatment-of-acute-promyelocytic-leukemia-blood-1988-72-2-567-572
#20
(no author information available yet)
No abstract text is available yet for this article.
December 29, 2016: Blood
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