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https://www.readbyqxmd.com/read/28742967/molybdenum-0-dihapto-coordination-of-benzene-and-trifluorotoluene-the-stabilizing-and-chemo-directing-influence-of-a-cf3-group
#1
Jeffery T Myers, Jacob A Smith, Steven J Dakermanji, Justin H Wilde, Katy B Wilson, Philip J Shivokevich, W Dean Harman
The preparation of the complex TpMo(NO)(DMAP)(η2-PhCF3) (5) and TpMo(NO)(DMAP)(η2-benzene) (3) are described. The CF3 group is found to stabilize the metal-arene bond strength in 5 by roughly 3 kcal/mol, compared to 3, allowing the large-scale synthesis and isolation of the trifluorotoluene analog (5, 37 g, 70%). When a benzene solution of 5 is allowed to stand, clean conversion to the benzene analog 3 occurs, and this complex may be precipitated from solution upon the addition of pentane, and isolated...
July 25, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28742965/sequential-tandem-addition-reactions-to-a-tungsten-trifluorotoluene-complex-a-versatile-method-for-the-preparation-of-highly-functionalized-trifluoromethylated-cyclohexenes
#2
Katy B Wilson, Jeffery T Myers, Hannah S Nedzbala, Logan A Combee, Michal Sabat, W Dean Harman
The effects of an electron-withdrawing group on the organic chemistry of an η2-bound benzene ring are explored using the complex TpW(NO)(PMe3)(η2-PhCF3). This trifluorotoluene complex was found to undergo a highly regio- and stereoselective 1,2-addition reaction involving protonation of an ortho carbon followed by addition of a carbon nucleophile. The resulting 1,3-diene complexes can undergo a second protonation and nucleophilic addition with a range of nucleophiles including hydrides, amines, cyanide, and protected enolates...
July 25, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28742835/a-checklist-of-the-bats-of-peninsular-malaysia-and-progress-towards-a-dna-barcode-reference-library
#3
Voon-Ching Lim, Rosli Ramli, Subha Bhassu, John-James Wilson
Several published checklists of bat species have covered Peninsular Malaysia as part of a broader region and/or in combination with other mammal groups. Other researchers have produced comprehensive checklists for specific localities within the peninsula. To our knowledge, a comprehensive checklist of bats specifically for the entire geopolitical region of Peninsular Malaysia has never been published, yet knowing which species are present in Peninsular Malaysia and their distributions across the region are crucial in developing suitable conservation plans...
2017: PloS One
https://www.readbyqxmd.com/read/28742444/queering-biology-gutting-feminism-a-review-essay-of-gut-feminism-by-elizabeth-a-wilson-durham-nc-duke-university-press-2015
#4
David A Rubin
The author reviews Elizabeth A. Wilson's Gut Feminism (2015), arguing that Wilson's book productively challenges some of feminist theory's most entrenched presuppositions: that social, cultural, and discursive frameworks are opposed and superior to biological ones; that biological matter is flat, sovereign, monolithic, and determining; that depression is more a cultural, historical, and psychological phenomenon than a biochemical and pharmaceutical one (and that these nominative distinctions are stable and natural); and finally, that the belly's ruminations (hunger, ingestion, digestion, peristalsis, diarrhea, constipation, and excretion) give no clue as to the complexities of entanglements between gut, psyche, subjectivity, sociality, and hostility...
July 25, 2017: Journal of Lesbian Studies
https://www.readbyqxmd.com/read/28742443/family-planning-in-southern-india-a-survey-of-women-s-attitudes
#5
Erin Smith, Umesh S Charantimath, Susan F Wilson, Matthew K Hoffman
No abstract text is available yet for this article.
July 25, 2017: Health Care for Women International
https://www.readbyqxmd.com/read/28742347/cationic-and-anionic-impact-on-the-electronic-structure-of-liquid-water
#6
Zhong Yin, Ludger Inhester, Sreevidya Thekku Veedu, Wilson Quevedo, Annette Pietzsch, Philippe Wernet, Gerrit Groenhof, Alexander Foehlisch, Helmut Grubmüller, Simone Agnes Techert
Hydration shells around ions are crucial for many fundamental biological and chemical processes. Their local physico-chemical properties are quite different from bulk water, and hard to probe experimentally. We address this problem by combining soft X-ray spectroscopy using a liquid jet and molecular dynamics (MD) simulations together with ab initio electronic structure calculations to elucidate the water-ion interaction in an MgCl2 solution at the molecular level. Our results reveal that salt ions mainly affect the electronic properties of water molecules in close vicinity and that the oxygen K-edge X-ray emission spectrum of water molecules in the first solvation shell differs significantly from bulk water...
July 25, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28742257/dynamic-carboniferous-tropical-forests-new-views-of-plant-function-and-potential-for-physiological-forcing-of-climate
#7
REVIEW
Jonathan P Wilson, Isabel P Montañez, Joseph D White, William A DiMichele, Jennifer C McElwain, Christopher J Poulsen, Michael T Hren
Contents I. II. III. IV. V. VI. References SUMMARY: The Carboniferous, the time of Earth's penultimate icehouse and widespread coal formation, was dominated by extinct lineages of early-diverging vascular plants. Studies of nearest living relatives of key Carboniferous plants suggest that their physiologies and growth forms differed substantially from most types of modern vegetation, particularly forests. It remains a matter of debate precisely how differently and to what degree these long-extinct plants influenced the environment...
July 25, 2017: New Phytologist
https://www.readbyqxmd.com/read/28742223/impact-and-implementation-of-a-sustainable-regional-telestroke-network
#8
Annemarei Ranta, Jeremy Lanford, Suzanne Busch, Carolyn Providence, Ivan Iniesta, Ian Rosemergy, Andrew Wilson, Pietro Cariga, Victoria Richmond, John Gommans
INTRODUCTION: Telestroke uses videoconferencing (VC) technology to allow off-site experts to provide stroke thrombolysis decision support to less experienced front line clinicians. This project aimed to assess the impact of a new telestroke service on thrombolysis rates and door-to-needle times in participating provincial hospitals and service resources to aid transition to a sustainably telestroke service. METHODS: This is a sequential comparison of 'pre' (December 2015 to May 2016) and 'postr' (June 2016 to December 2016) implementation outcomes...
July 25, 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/28741656/biochemical-evaluation-of-storage-lesion-in-canine-packed-erythrocytes
#9
C R Wilson, M B Pashmakova, J A Heinz, M C Johnson, H M Minard, M A Bishop, J W Barr
OBJECTIVES: This study describes the biochemical changes - also known as the storage lesion - that occur in canine packed red blood cells during ex vivo storage. MATERIALS AND METHODS: Ten 125-mL units of non-leuco-reduced packed red blood cells in citrate phosphate dextrose adenine were obtained from a commercial blood bank within 24 hours of donation. Samples were aseptically collected on days 1, 4, 7, 14, 28, 35 and 42 for measurement of sodium, potassium, chloride, lactate, glucose, pH and ammonia concentrations...
July 25, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/28741611/an-antimicrobial-peptide-that-inhibits-translation-by-trapping-release-factors-on-the-ribosome
#10
Tanja Florin, Cristina Maracci, Michael Graf, Prajwal Karki, Dorota Klepacki, Otto Berninghausen, Roland Beckmann, Nora Vázquez-Laslop, Daniel N Wilson, Marina V Rodnina, Alexander S Mankin
Many antibiotics stop bacterial growth by inhibiting different steps of protein synthesis. However, no specific inhibitors of translation termination are known. Proline-rich antimicrobial peptides, a component of the antibacterial defense system of multicellular organisms, interfere with bacterial growth by inhibiting translation. Here we show that Api137, a derivative of the insect-produced antimicrobial peptide apidaecin, arrests terminating ribosomes using a unique mechanism of action. Api137 binds to the Escherichia coli ribosome and traps release factor (RF) RF1 or RF2 subsequent to the release of the nascent polypeptide chain...
July 24, 2017: Nature Structural & Molecular Biology
https://www.readbyqxmd.com/read/28741308/what-is-your-diagnosis-lymph-node-aspirates-from-a-dog-with-prominent-lymphadenomegaly
#11
Charalampos Attipa, Fiona Brooks, Alison Wilson, Ragnhild Skulberg, Kate English
No abstract text is available yet for this article.
July 24, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28740756/sonographic-evaluation-of-the-immediate-effects-of-eccentric-heel-drop-exercise-on-achilles-tendon-and-gastrocnemius-muscle-stiffness-using-shear-wave-elastography
#12
Wilson K C Leung, K L Chu, Christopher Lai
BACKGROUND: Mechanical loading is crucial for muscle and tendon tissue remodeling. Eccentric heel drop exercise has been proven to be effective in the management of Achilles tendinopathy, yet its induced change in the mechanical property (i.e., stiffness) of the Achilles tendon (AT), medial and lateral gastrocnemius muscles (MG and LG) was unknown. Given that shear wave elastography has emerged as a powerful tool in assessing soft tissue stiffness with promising intra- and inter-operator reliability, the objective of this study was hence to characterize the stiffness of the AT, MG and LG in response to an acute bout of eccentric heel drop exercise...
2017: PeerJ
https://www.readbyqxmd.com/read/28739647/compensatory-distal-reabsorption-drives-diuretic-resistance-in-human-heart-failure
#13
Veena S Rao, Noah Planavsky, Jennifer S Hanberg, Tariq Ahmad, Meredith A Brisco-Bacik, Francis P Wilson, Daniel Jacoby, Michael Chen, W H Wilson Tang, David Z I Cherney, David H Ellison, Jeffrey M Testani
Understanding the tubular location of diuretic resistance (DR) in heart failure (HF) is critical to developing targeted treatment strategies. Rodents chronically administered loop diuretics develop DR due to compensatory distal tubular sodium reabsorption, but whether this translates to human DR is unknown. We studied consecutive patients with HF (n=128) receiving treatment with loop diuretics at the Yale Transitional Care Center. We measured the fractional excretion of lithium (FELi), the gold standard for in vivo assessment of proximal tubular and loop of Henle sodium handling, to assess sodium exit after loop diuretic administration and FENa to assess the net sodium excreted into the urine...
July 24, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28739609/a-national-quitline-service-and-its-promotion-in-the-mass-media-modelling-the-health-gain-health-equity-and-cost-utility
#14
Nhung Nghiem, Christine L Cleghorn, William Leung, Nisha Nair, Frederieke S van der Deen, Tony Blakely, Nick Wilson
BACKGROUND: Mass media campaigns and quitlines are both important distinct components of tobacco control programmes around the world. But when used as an integrated package, the effectiveness and cost-effectiveness are not well described. We therefore aimed to estimate the health gain, health equity impacts and cost-utility of the package of a national quitline service and its promotion in the mass media. METHODS: We adapted an established Markov and multistate life-table macro-simulation model...
July 24, 2017: Tobacco Control
https://www.readbyqxmd.com/read/28739569/normal-carboxyhaemoglobin-level-in-carbon-monoxide-poisoning-treated-with-hyperbaric-oxygen-therapy
#15
Scott A Helgeson, Michael E Wilson, Pramod K Guru
Throughout the world both intentional and inadvertent exposure to carbon monoxide (CO) remains an important public health issue. While CO poisoning can be lethal, the morbidity is predominantly due to nervous system injury. A previously healthy 22-year-old woman was found unconscious at home by her sister. Her parents were found dead in the house with a recent history of a dysfunctional furnace. She was presumed to have CO poisoning despite an initial carboxyhaemoglobin level of 2.5%. Patient had both clinical and radiological evidence of neurological damage...
July 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28739240/evaluation-of-situation-background-assessment-recommendation-tool-during-neonatal-and-pediatric-interfacility-transport
#16
Diane Wilson, Anuradha Kochar, Andrew Whyte-Lewis, Hilary Whyte, Kyong-Soon Lee
OBJECTIVE: We aimed to determine if the implementation of Situation, Background, Assessment, Recommendation (SBAR) training improved the quality of real-life telephone communication. We evaluated interfacility neonatal and pediatric transports performed by registered nurses, respiratory therapists, and physicians (MDs). METHODS: This was a quality improvement study performed to evaluate telephone communication before and after SBAR training. Training consisted of lectures, review of audio files, and simulated role-playing...
July 2017: Air Medical Journal
https://www.readbyqxmd.com/read/28739149/oral-medication-for-agitation-of-psychiatric-origin-a-scoping-review-of-randomized-controlled-trials
#17
Samuel Mullinax, Farhad Shokraneh, Michael P Wilson, Clive E Adams
BACKGROUND: Understanding more about the efficacy and safety of oral second-generation antipsychotic medications in reducing the symptoms of acute agitation could improve the treatment of psychiatric emergencies. OBJECTIVE: The objective of this scoping review was to examine the evidence base underlying expert consensus panel recommendations for the use of oral second-generation antipsychotics to treat acute agitation in mentally ill patients. METHODS: The Cochrane Schizophrenia Group's Study-Based Register was searched for randomized controlled trials comparing oral second-generation antipsychotics, benzodiazepines, or first-generation antipsychotics with or without adjunctive benzodiazepines, irrespective of route of administration of the drug being compared...
July 21, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28739122/idiopathic-granulomatous-mastitis-a-diagnostic-and-therapeutic-challenge
#18
C M Freeman, B T Xia, G C Wilson, J D Lewis, S Khan, S J Lee, E E Lower, M J Edwards, E A Shaughnessy
BACKGROUND: Idiopathic granulomatous mastitis is a rare benign breast disease of women of reproductive age. It usually presents as a painful mass. Since the etiology is unclear, directed diagnosis and management is lacking. METHODS: This is a retrospective chart review of 14 patients, over twelve years (2004-2016), identified through query of pathology findings. RESULTS: Two asymptomatic patients were diagnosed after oncologic breast resection following neoadjuvant chemotherapy...
July 8, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28738248/the-reliability-and-validity-of-measurements-of-human-dental-casts-made-by-an-intra-oral-3d-scanner-with-conventional-hand-held-digital-callipers-as-the-comparison-measure
#19
Mithun Rajshekar, Roberta Julian, Anne-Marie Williams, Marc Tennant, Alex Forrest, Laurence J Walsh, Gary Wilson, Leigh Blizzard
AIM: Intra-oral 3D scanning of dentitions has the potential to provide a fast, accurate and non-invasive method of recording dental information. The aim of this study was to assess the reliability of measurements of human dental casts made using a portable intra-oral 3D scanner appropriate for field use. METHOD: Two examiners each measured 84 tooth and 26 arch features of 50 sets of upper and lower human dental casts using digital hand-held callipers, and secondly using the measuring tool provided with the Zfx IntraScan intraoral 3D scanner applied to the virtual dental casts...
July 13, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28737940/defining-the-structural-basis-for-allosteric-product-release-from-e-coli-dihydrofolate-reductase-using-nmr-relaxation-dispersion
#20
David Oyen, R Bryn Fenwick, Phillip C Aoto, Robyn L Stanfield, Ian A Wilson, H Jane Dyson, Peter E Wright
The rate-determining step in the catalytic cycle of E.coli dihydrofolate reductase is tetrahydrofolate (THF) product release, which can occur via an allosteric or an intrinsic pathway. The allosteric pathway, which becomes accessible when the reduced cofactor NADPH is bound, involves transient sampling of a higher energy conformational state, greatly increasing the product dissociation rate compared to the intrinsic pathway that obtains when NADPH is absent. Although the kinetics of this process are known, the enzyme structure and the THF product conformation in the transiently formed excited state remains elusive...
July 24, 2017: Journal of the American Chemical Society
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