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https://www.readbyqxmd.com/read/28538807/professional-autonomy-and-nursing-representations-of-health-professionals
#1
Érick Igor Dos Santos, Yasmin Rayanne Alves, Aline Cerqueira Santos Santana da Silva, Antonio Marcos Tosoli Gomes
Objective: To analyse the social representations of the professional autonomy of nurses and nursing for non-nursing health professionals. Methods: This is a qualitative study based on the theory of social representations. Fifty-three non-nursing professionals of a municipal hospital participated in this study. Data were collected between March and April 2015, from hierarchical free evocations using the inductor terms, "professional autonomy of nurses" and "nursing"...
May 18, 2017: Revista Gaúcha de Enfermagem
https://www.readbyqxmd.com/read/28538729/cryo-em-structure-of-the-activated-glp-1-receptor-in-complex-with-a-g-protein
#2
Yan Zhang, Bingfa Sun, Dan Feng, Hongli Hu, Matthew Chu, Qianhui Qu, Jeffrey T Tarrasch, Shane Li, Tong Sun Kobilka, Brian K Kobilka, Georgios Skiniotis
Glucagon-like peptide 1 (GLP-1) is a hormone with essential roles in regulating insulin secretion, carbohydrate metabolism and appetite. GLP-1 effects are mediated through binding to the GLP-1 receptor (GLP-1R), a class B G-protein-coupled receptor (GPCR) that signals primarily through the stimulatory G protein Gs. Class B GPCRs are important therapeutic targets; however, our understanding of their mechanism of action is limited by the lack of structural information on activated and full-length receptors. Here we report the cryo-electron microscopy structure of the peptide-activated GLP-1R-Gs complex at near atomic resolution...
May 24, 2017: Nature
https://www.readbyqxmd.com/read/28538687/on-forgotten-topological-indices-of-some-dendrimers-structure
#3
Yasir Bashir, Adnan Aslam, Muhammad Kamran, Muhammad Imran Qureshi, Adnan Jahangir, Muhammad Rafiq, Nargis Bibi, Nazeer Muhammad
A series of previously conducted experiments pertaining to various chemicals and drugs uncover a natural linkage between the molecular structures and the bio-medical and pharmacological characteristics. The forgotten topological index computed for the molecular structures of various chemical compounds and drugs has proven significant in medical and pharmaceutical fields by predicting biological features of new chemical compounds and drugs. A topological index can be considered as the transformation of chemical structure into a real number...
May 24, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28538670/design-and-synthesis-of-dendrimers-with-facile-surface-group-functionalization-and-an-evaluation-of-their-bactericidal-efficacy
#4
Elizabeth Ladd, Amir Sheikhi, Na Li, Theo G M van de Ven, Ashok Kakkar
We report a versatile divergent methodology to construct dendrimers from a tetrafunctional core, utilizing the robust copper(I) catalyzed alkyne-azide cycloaddition (CuAAC, "click") reaction for both dendrimer synthesis and post-synthesis functionalization. Dendrimers of generations 1-3 with 8-32 protected or free OH and acetylene surface groups, were synthesized using building blocks that included acetylene- or azide-terminated molecules with carboxylic acid or diol end groups, respectively. The acetylene surface groups were subsequently used to covalently link cationic amino groups...
May 24, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28538460/transforming-care-for-victims-of-violence
#5
Anne C Boatright
In this month's Magnet® Perspectives column, Anne Boatright, MSN, RN, SANE, describes her efforts to develop a comprehensive forensic nursing program at Methodist Hospital in Omaha. Ms Boatright transformed a sexual assault nurse examiner (SANE) program into one that provides 24/7 coverage at Methodist's 2 SANE locations and cares not only for victims of sexual assault but also for the victims domestic violence, sex trafficking, strangulation, elder abuse, and neglect. Her work extends beyond the walls of Methodist to the community, where she serves as a core member of the Nebraska Human Trafficking Task Force...
June 2017: Journal of Nursing Administration
https://www.readbyqxmd.com/read/28538335/bigaussian-wavefront-model-for-normal-and-keratoconic-eyes
#6
Jos J Rozema, Pablo Rodríguez, Rafael Navarro, Carina Koppen
PURPOSE: To report bigaussian multivariate wavefront models capable of stochastically generating an unlimited amount of plausible wavefront data for either normal or keratoconic eyes. METHODS: The models use centroid wavefront data measured previously with an iTrace in 330 healthy right eyes and 122 keratoconic right eyes. These centroids were fitted to an 11th-order Zernike series, followed by principal component analysis to reduce dimensionality and remove correlations...
June 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28538189/evaluation-of-methods-to-sample-fecal-indicator-bacteria-in-foreshore-sand-and-pore-water-at-freshwater-beaches
#7
Laura J Vogel, Thomas A Edge, Denis M O'Carroll, Helena M Solo-Gabriele, Caitlin S E Kushnir, Clare E Robinson
Fecal indicator bacteria (FIB) are known to accumulate in foreshore beach sand and pore water (referred to as foreshore reservoir) where they act as a non-point source for contaminating adjacent surface waters. While guidelines exist for sampling surface waters at recreational beaches, there is no widely-accepted method to collect sand/sediment or pore water samples for FIB enumeration. The effect of different sampling strategies in quantifying the abundance of FIB in the foreshore reservoir is unclear. Sampling was conducted at six freshwater beaches with different sand types to evaluate sampling methods for characterizing the abundance of E...
May 9, 2017: Water Research
https://www.readbyqxmd.com/read/28538165/the-complexity-in-herpesvirus-entry
#8
REVIEW
Karthik Sathiyamoorthy, Jia Chen, Richard Longnecker, Theodore S Jardetzky
Enveloped viruses have evolved diverse transmembrane proteins and protein complexes to enable host cell entry by regulating and activating membrane fusion in a target cell-specific manner. In general terms, the entry process requires a receptor binding step, an activation step and a membrane fusion step, which can be encoded within a single viral protein or distributed among multiple viral proteins. HIV and influenza virus, for example, encode all of these functions in a single trimeric glycoprotein, HIV env or influenza virus hemagglutinin (HA)...
May 21, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28538145/nmr-analysis-of-amide-hydrogen-exchange-rates-in-a-pentapeptide-repeat-protein-from-a-%C3%A2-thaliana
#9
Shenyuan Xu, Shuisong Ni, Michael A Kennedy
At2g44920 from Arabidopsis thaliana is a pentapeptide-repeat protein (PRP) composed of 25 repeats capped by N- and C-terminal α-helices. PRP structures are dominated by four-sided right-handed β-helices typically consisting of mixtures of type II and type IV β-turns. PRPs adopt repeated five-residue (Rfr) folds with an Rfr consensus sequence (STAV)(D/N)(L/F)(S/T/R)(X). Unlike other PRPs, At2g44920 consists exclusively of type II β-turns. At2g44920 is predicted to be located in the thylakoid lumen although its biochemical function remains unknown...
May 23, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28538101/chemical-endgroup-modified-diblock-copolymers-elucidate-anchor-and-chain-mechanism-of-membrane-stabilization
#10
Evelyne M Houang, Karen J Haman, Mihee Kim, Wenjia Zhang, Dawn A Lowe, Yuk Yin Sham, Timothy P Lodge, Benjamin J Hackel, Frank S Bates, Joseph M Metzger
Block copolymers can be synthesized in an array of architectures and compositions to yield diverse chemical properties. The triblock copolymer Poloxamer 188 (P188), the family archetype, consisting of a hydrophobic polypropylene oxide core flanked by hydrophilic polyethylene oxide chains, can stabilize cellular membranes during stress. However, little is known regarding the molecular basis of membrane interaction by copolymers in living organisms. By leveraging diblock architectural design, discrete end-group chemistry modifications can be tested...
May 24, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28537998/lactate-and-microcirculation-as-suitable-targets-for-hemodynamic-optimization-in-resuscitation-of-circulatory-shock
#11
Michael E Kiyatkin, Jan Bakker
PURPOSE OF REVIEW: A discussion of recent research exploring the feasibility of perfusion-guided resuscitation of acute circulatory failure with a focus on lactate and microcirculation. RECENT FINDINGS: Upon diagnosis of shock, hyperlactemia is associated with poor outcome and, under appropriate clinical circumstances, may reflect inadequate tissue perfusion. Persistent hyperlactemia despite resuscitation is even more strongly correlated with morbidity and mortality...
May 22, 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/28537951/an-interprofessional-course-on-substance-use-disorders-for-health-professions-students
#12
Andrew J Muzyk, Chris Tew, Allie Thomas-Fannin, Sanjai Dayal, Reina Maeda, Nicole Schramm-Sapyta, Kathryn M Andolsek, Shelley Holmer
PROBLEM: Substance use disorders (SUDs) affect millions of Americans. Nevertheless, there is insufficient health care resource allocation for these patients. One reason may be the lack of education and training about SUDs in health professions programs. APPROACH: The authors developed a required, interprofessional SUDs course for health professions students completing a one-month psychiatry clerkship within the Duke University Health System starting in November 2015...
May 23, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28537786/designing-a-community-based-population-health-model
#13
Christopher J Durovich, Peter W Roberts
The pace of change from volume-based to value-based payment in health care varies dramatically among markets. Regardless of the ultimate disposition of the Affordable Care Act, employers and public-private payers will continue to increase pressure on health care providers to assume financial risk for populations in the form of shared savings, bundled payments, downside risk, or even capitation. This article outlines a suggested road map and practical considerations for health systems that are building or planning to build population health capabilities to meet the needs of their local markets...
May 24, 2017: Population Health Management
https://www.readbyqxmd.com/read/28537744/non-covalent-interactions-in-ir-catalyzed-c-h-activation-l-shaped-ligand-for-para-selective-borylation-of-aromatic-esters
#14
Md Emdadul Hoque, Ranjana Bisht, Chabush Haldar, Buddhadeb Chattopadhyay
An efficient strategy for the para-selective borylation of aromatic esters is described. For achieving high para selectivity, a new catalytic system has been developed modifying the core structure of the bipyridine. It has been proposed that the L-shaped ligand is essential to recognize the functionality of the oxygen atom of the ester carbonyl group via non-covalent interaction, which provides an unprecedented controlling factor for para selective C-H activation/borylation.
May 24, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28537715/facile-synthesis-of-cu-nicu-electrocatalysts-integrating-alloy-core-shell-and-one-dimensional-structures-for-efficient-methanol-oxidation-reaction
#15
Dengfeng Wu, Wei Zhang, Daojian Cheng
The design and development of low-cost Pt-free, high-active and durable noble-metal-free electrocatalysts for methanol electrooxidation is highly desirable but remains a challenge. Herein, unique Cu/NiCu nanowires (NWs) integrating alloy, core-shell and one-dimensional structures are prepared by a facile one-pot strategy. It is found that Ni-Cu surface alloying structure can effectively change the charge distribution of atomic configuration, core-shell structure can be optimally the usage of Ni and Cu, and one-dimensional structure can effectively enhance the charge transfer between electrode surface and active sites, making the prepared NWs as promising electrocatalysts...
May 24, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28537709/titanium-oxo-cluster-with-six-peripheral-ferrocene-units-and-its-photocurrent-response-properties-for-saccharides
#16
Jin-Le Hou, Wen Luo, Yao Guo, Ping Zhang, Shen Yang, Qin-Yu Zhu, Jie Dai
A unique titanium oxo cluster with a ferrocene ligand was synthesized and characterized by single crystal X-ray analysis. Six ferrocene carboxylates coordinate to a D3d Ti6O6 core to be a redox active cluster 1, [Ti6O6(O(i)Pr)6(O2CFc)6]. An analogue 2, [Ti6O6(O(i)Pr)6(O2C(i)Bu)6], where the redox active ferrocene group is replaced by isobutyrate, is also reported as a contrast. The six ferrocene moieties in 1 are structurally identical to give a main redox wave at E1/2 = 0.62 V in dichloromethane investigated by cyclic voltammetry...
May 24, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28537705/hypoxia-responsive-19-f-mri-probes-with-improved-redox-properties-and-biocompatibility
#17
Da Xie, Seyong Kim, Vikraant Kohli, Arnab Banerjee, Meng Yu, José S Enriquez, Jeffrey J Luci, Emily L Que
(19)F magnetic resonance imaging (MRI), an emerging modality in biomedical imaging, has shown promise for in vitro and in vivo preclinical studies. Here we present a series of fluorinated Cu(II)ATSM derivatives for potential use as (19)F magnetic resonance agents for sensing cellular hypoxia. The synthesized complexes feature a hypoxia-targeting Cu(2+) coordination core, nine equivalent fluorine atoms connected via a variable-length poly(ethylene glycol) linker. Introduction of the fluorine moiety maintains the planar coordination geometry of the Cu(2+) center, while the linker length modulates the Cu(2+/+) reduction potential, (19)F NMR relaxation properties, and lipophilicity...
May 24, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28537226/toward-hybrid-au-nanorods-m-au-ag-pd-and-pt-core-shell-heterostructures-for-ultrasensitive-sers-probes
#18
Xiaobin Xie, Guanhui Gao, Shendong Kang, Yanhua Lei, Zhengyin Pan, Tamaki Shibayama, Lintao Cai
Being able to precisely control the morphologies of noble metallic nanostructures is of essential significance for promoting the surface-enhanced Raman scattering (SERS) effect. Herein, we demonstrate an overgrowth strategy for synthesizing Au @ M (M = Au, Ag, Pd, Pt) core-shell heterogeneous nanocrystals with an orientated structural evolution and highly improved properties by using Au nanorods as seeds. With the same reaction condition system applied, we obtain four well-designed heterostructures with diverse shapes, including Au concave nanocuboids (Au CNs), Au @ Ag crystalizing face central cube nanopeanuts, Au @ Pd porous nanocuboids and Au @ Pt nanotrepangs...
May 24, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28535668/stability-of-retroviral-vectors-against-ultracentrifugation-is-determined-by-the-viral-internal-core-and-envelope-proteins-used-for-pseudotyping
#19
Soo-Hyun Kim, Kwang-Il Lim
Retroviral and lentiviral vectors are mostly pseudotyped and often purified and concentrated via ultracentrifugation. In this study, we quantified and compared the stabilities of retroviral [murine leukemia virus (MLV)-based] and lentiviral [human immunodeficiency virus (HIV)-1-based] vectors pseudotyped with relatively mechanically stable envelope proteins, vesicular stomatitis virus glycoproteins (VSVGs), and the influenza virus WSN strain envelope proteins against ultracentrifugation. Lentiviral genomic and functional particles were more stable than the corresponding retroviral particles against ultracentrifugation when pseudotyped with VSVGs...
May 2, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28535557/endogenous-pain-facilitation-rather-than-inhibition-differs-between-people-with-chronic-fatigue-syndrome-multiple-sclerosis-and-controls-an-observational-study
#20
Simon M Collin, Jo Nijs, Mira Meeus, Andrea Polli, Barbara Willekens, Kelly Ickmans
BACKGROUND: Commonalities in the core symptoms of fatigue and cognitive dysfunction experienced by chronic fatigue syndrome (CFS, also known as ME) and multiple sclerosis (MS) patients have been described. Many CFS and MS patients also experience chronic pain, which has been attributed to central sensitization in both groups of patients. However, the characteristics of pain in CFS and MS patients have not been compared. OBJECTIVES: To compare experimental pain measurements in patients with CFS or MS and healthy controls...
May 2017: Pain Physician
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