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https://www.readbyqxmd.com/read/29157571/using-nurse-managers-perceptions-to-guide-new-graduates-toward-positive-nurse-relationships
#1
Linda Weaver Moore, Cynthia Sublett, Cathy Leahy, Jennifer M Bradley
One of the greatest challenges new graduates confront when transitioning to practice is establishing positive relationships with experienced nurses. Nursing faculty must prepare graduates for this challenge. However, nursing faculty are often removed from everyday practice and must rely on the perceptions of those entrenched in practice in order to ground teaching endeavors in authenticity. Nurse managers are well positioned to provide knowledgeable insights to nursing faculty regarding nurse relationships...
November 2017: Journal of Professional Nursing: Official Journal of the American Association of Colleges of Nursing
https://www.readbyqxmd.com/read/29152227/promising-neuroprotective-strategies-for-traumatic-spinal-cord-injury-with-a-focus-on-the-differential-effects-among-anatomical-levels-of-injury
#2
REVIEW
Antigona Ulndreaj, Anna Badner, Michael G Fehlings
Traumatic spinal cord injury (SCI) is a devastating condition of motor, sensory, and autonomic dysfunction. The significant cost associated with the management and lifetime care of patients with SCI also presents a major economic burden. For these reasons, there is a need to develop and translate strategies that can improve outcomes following SCI. Given the challenges in achieving regeneration of the injured spinal cord, neuroprotection has been at the forefront of clinical translation. Yet, despite many preclinical advances, there has been limited translation into the clinic apart from methylprednisolone (which remains controversial), hypertensive therapy to maintain spinal cord perfusion, and early decompressive surgery...
2017: F1000Research
https://www.readbyqxmd.com/read/29148702/influence-of-particle-geometry-on-gastrointestinal-transit-and-absorption-following-oral-administration
#3
Dong Li, Jie Zhuang, Haisheng He, Sifan Jiang, Amrita Banerjee, Yi Lu, Wei Wu, Samir Mitragotri, Li Gan, Jianping Qi
Geometry has been considered as one of the important parameters in nanoparticle design since it affects cellular uptake, transport across the physiological barriers and in vivo distribution. However, only a few studies have been conducted to elucidate the influence of nanoparticle geometry in their in vivo fate after oral administration. This paper discloses the effect of nanoparticle shape on transport and absorption in gastrointestinal tract (GIT). Nanorods and nanospheres were prepared, and labeled using fluorescence resonance energy transfer (FRET) molecules to track the in vivo fate of intact nanoparticles accurately...
November 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29145973/tak-ing-aim-at-chemoresistance-the-emerging-role-of-map3k7-as-a-target-for-cancer-therapy
#4
Raffaela Santoro, Carmine Carbone, Geny Piro, Paul J Chiao, Davide Melisi
Cellular drug resistance remains the main obstacle to the clinical efficacy of cancer chemotherapy. Alterations in key pathways regulating cell cycle checkpoints, apoptosis and Epithelial to Mesenchymal Transition (EMT), such as the Mitogen-activated protein kinase (MAPK) pathway, appear to be closely associated to cancer chemoresistance. Transforming growth factor-β (TGF-β)- activated kinase 1 (TAK1, also known as MAP3K7) is a serine/threonine kinase in the mitogen-activated protein kinase (MAP3K) family...
November 2017: Drug Resistance Updates: Reviews and Commentaries in Antimicrobial and Anticancer Chemotherapy
https://www.readbyqxmd.com/read/29143920/distinguishing-the-disease-associated-snps-based-on-composition-frequency-analysis
#5
Wenling Li, Menglong Li, Xuemei Pu, Yanzhi Guo
Single-nucleotide polymorphism (SNP) is a basical variation in genome. When SNPs occur at the binding sites of microRNA, they can influence the binding efficiency, cause a fluctuation of the mRNA in vivo, and thus arouse posttranscriptional level abnormality. Therefore, SNP has a strong correlation with diseases. Although enormous SNPs have been experimentally identified, only a tiny proportion of them are truly disease-associated SNPs (dSNPs) that relate to microRNA modification and then are involved in disease causing process...
November 16, 2017: Interdisciplinary Sciences, Computational Life Sciences
https://www.readbyqxmd.com/read/29143342/bonnmag-computer-program-for-ligand-field-analysis-of-f%C3%A2-n-systems-within-the-angular-overlap-model
#6
Anna Bronova, Thomas Bredow, Robert Glaum, Mark J Riley, Werner Urland
The program BonnMag has been developed to calculate the absorption spectra and temperature dependent magnetic susceptibilities of f (n) systems. The computations of the transition energies are performed within the angular overlap model. Using Judd-Ofelt theory BonnMag allows estimation of the relative absorption coefficients of the electronic transitions with reasonable accuracy. A description of the theoretical background of the implemented methods is given. Using Slater-Condon-Shortley parameters and spin-orbit coupling coefficients for free Ln(3+) ions from ab initio calculations, the transition energies of all Ln(3+) ions are calculated and compared to the results from CASSCF/NEV-PT2 calculations...
November 15, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/29142205/coupling-of-emergent-octahedral-rotations-to-polarization-in-k-na-nbo3-ferroelectrics
#7
I Levin, V Krayzman, G Cibin, M G Tucker, M Eremenko, K Chapman, R L Paul
Perovskite potassium sodium niobates, K1-xNaxNbO3, are promising lead-free piezoelectrics. Their dielectric and piezoelectric characteristics peak near x = 0.5, but the reasons for such property enhancement remain unclear. We addressed this uncertainty by analyzing changes in the local and average structures across the x = 0.5 composition, which have been determined using simultaneous Reverse Monte Carlo fitting of neutron and X-ray total-scattering data, potassium EXAFS, and diffuse-scattering patterns in electron diffraction...
November 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29140693/nonadiabatic-dynamics-of-cycloparaphenylenes-with-td-dftb-surface-hopping
#8
Ljiljana Stojanovic, Saadullah G Aziz, Rifaat Hassan Hilal, Felix Plasser, Thomas A Niehaus, Mario Barbatti
We implemented a version of the decoherence-corrected fewest switches surface hopping based on linear-response time-dependent density functional tight binding (TD-DFTB), enhanced by transition density analysis. The method has been tested for the gas-phase relaxation dynamics of two cycloparaphenylene molecules, [8]CPP and [10]CPP, explaining some important features of their nonadiabatic dynamics, such as the origin of their long fluorescence lifetimes (related to the slow radiative emission from the S1 state) and the trend of increasing the fluorescence rate with the molecular size (related to an increase in the S1-S0 energy gaps and oscillator strengths in the larger molecule)...
November 15, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/29139497/weak-ferromagnetic-ordering-in-brownmillerite-ca2fe2o5-and-its-effect-on-electric-field-gradients
#9
Isao Kagomiya, Yuki Hirota, Ken-Ichi Kakimoto, Kotaro Fujii, Masahiro Shiraiwa, Masatomo Yashima, Akio Fuwa, Shin Nakamura
Brownmillerite Ca2Fe2O5 (CFO) exhibits a magnetic transition at TN ∼ 730 K. Many studies have reported the magnetic properties of CFO. However, the magnetic structure of CFO is still debated, i.e., whether the magnetic ordering is purely antiferromagnetic or weakly ferromagnetic, which originated from canted magnetic moments. In addition, the reason for the CFO showing large magnetoresistance is still unclear. This study attempts to address the unresolved issues stated above by multiple investigations on the crystal structure, magnetization, and Mössbauer parameters...
November 15, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29138573/matrine-suppresses-the-migration-and-invasion-of-nsclc-cells-by-inhibiting-pax2-induced-epithelial-mesenchymal-transition
#10
Jun Yang, Du He, Yan Peng, Hongzhen Zhong, Yuhong Deng, Zhonghua Yu, Chengnong Guan, Yufang Zuo, Zumin Xu
Non-small cell lung cancer (NSCLC) is the major cause of deaths among all the cancer types worldwide. Most of the NSCLC is diagnosed at an advanced stage and the 5-year overall survival rate is low. The reason for the low survival rate of patients with NSCLC is mainly due to distant metastasis. Matrine, a traditional Chinese medicine, has been shown a significant anti-proliferation and anti-invasive effect in tumors. However, little is known on the anti-invasive mechanism of matrine in lung cancer. Therefore, we tried to investigate the molecular mechanism of matrine on the invasive ability of NSCLC cells in vitro...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29137878/integration-of-medicare-and-medicaid-for-dually-eligible-beneficiaries-a-focus-group-study-examining-beneficiaries-early-experiences-in-california-s-dual-financial-alignment-demonstration
#11
Carrie L Graham, Holly C Stewart, Elaine Kurtovich, Pi-Ju Liu
BACKGROUND: In 2014 California implemented a federal dual alignment demonstration that used a capitated managed care health plans called Cal MediConnect (CMC) to integrate medical care and long term services and supports (LTSS) for beneficiaries with both Medicare and Medicaid. These beneficiaries often have complex care needs, including multiple chronic conditions and disabilities. By 2016, 120,000 eligible beneficiaries were enrolled in the program. OBJECTIVES: Focus groups with enrolled beneficiaries were conducted to gather rich data about their early experiences with quality of care, access to care, and coordination of care in CMC plans and to identify recommendations for program improvement...
July 21, 2017: Disability and Health Journal
https://www.readbyqxmd.com/read/29137662/peer-assisted-learning-among-sri-lankan-medical-undergraduates-a-cross-sectional-study
#12
Nipun Lakshitha de Silva, Balasundaram Parththipan, Chaturaka Rodrigo, Godwin Constantine, Sumadhya Deepika Fernando, Senaka Rajapakse
OBJECTIVE: The objectives of this study were to; (a) evaluate the current practices of peer assisted learning among second year and final year medical students of Faculty of Medicine, University of Colombo, Sri Lanka; (b) identify reasons for engaging in peer assisted learning; (c) identify perceived weaknesses in current learning activities; and (d) determine student characteristics associated with engaging in peer assisted learning. RESULTS: This cross sectional study interviewed two hundred and eighty-four eligible students...
November 14, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29136020/evolutionary-dynamics-of-group-formation
#13
Marco Alberto Javarone, Daniele Marinazzo
Group formation is a quite ubiquitous phenomenon across different animal species, whose individuals cluster together forming communities of diverse size. Previous investigations suggest that, in general, this phenomenon might have similar underlying reasons across the interested species, despite genetic and behavioral differences. For instance improving the individual safety (e.g. from predators), and increasing the probability to get food resources. Remarkably, the group size might strongly vary from species to species, e...
2017: PloS One
https://www.readbyqxmd.com/read/29135220/strong-influence-of-ti-adhesion-layer-on-electron-phonon-relaxation-in-thin-gold-films-ab-initio-nonadiabatic-molecular-dynamics
#14
Xin Zhou, Joanna Jankowska, Linqiu Li, Ashutosh Giri, Patrick E Hopkins, Oleg V Prezhdo
Electron-phonon relaxation in thin metal films is an important consideration for many ultra-small devices and ultra-fast applications. Recent time-resolved experiments demonstrate a significant, more than a factor of five, increase in the electron-phonon coupling and an acceleration in the electron-phonon relaxation rate when a narrow Ti adhesion layer is introduced between an Au film and a non-metal substrate. Using nonadiabatic molecular dynamics combined with real-time time-dependent density functional theory, we identify the reasons that give rise to this strong effect...
November 14, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29132215/in-vivo-molecular-epr-based-spectroscopy-and-imaging-of-tumor-microenvironment-and-redox-using-functional-paramagnetic-probes
#15
Valery V Khramtsov
<i><b>Significance:</b></i> A key role of the tumor microenvironment (TME) in cancer progression, treatment resistance and as a target for therapeutic intervention is increasingly appreciated. Among physiological components of the TME are tissue hypoxia, acidosis, high reducing capacity, elevated concentrations of intracellular glutathione (GSH) and interstitial inorganic phosphate (Pi). Noninvasive <i>in vivo</i> assessment of these parameters provide unique insights into biological processes in TME, and may serve as a tool for pre-clinical screening of anticancer drugs and optimizing TME-targeted therapeutic strategies...
November 13, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29129161/navigation-through-inter-and-intratumoral-heterogeneity-of-endocrine-resistance-mechanisms-in-breast-cancer-a-potential-role-for-liquid-biopsies
#16
Florian Reinhardt, André Franken, Tanja Fehm, Hans Neubauer
The majority of breast cancers are hormone receptor positive due to the expression of the estrogen and/or progesterone receptors. Endocrine therapy is a major treatment option for all disease stages of hormone receptor-positive breast cancer and improves overall survival. However, endocrine therapy is limited by de novo and acquired resistance. Several factors have been proposed for endocrine therapy failures, which include molecular alterations in the estrogen receptor pathway, altered expression of cell-cycle regulators, autophagy, and epithelial-to-mesenchymal transition as a consequence of tumor progression and selection pressure...
November 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29129056/computational-analysis-of-transition-metal-terminal-boride-complexes
#17
Yavuz S Ceylan, Thomas R Cundari
A computational analysis of model transition-metal terminal boride [MB(PNP(R))] complexes is reported. A combination of density functional theory methods, natural bond orbital analysis, and multiconfiguration self-consistent field calculations were employed to investigate the structure and bonding of terminal boride complexes, in particular, the extent of metal dπ-boron pπ bonding. Comparison of metal-boride, -borylene, and-boryl bond lengths confirms the presence of metal-boron π bonds, albeit the modest shortening (∼3%) of the metal-boron bond suggests that the π-bonding is very weak in terminal borides...
November 21, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29127307/climate-induced-human-demographic-and-cultural-change-in-northern-europe-during-the-mid-holocene
#18
L Warden, M Moros, T Neumann, S Shennan, A Timpson, K Manning, M Sollai, L Wacker, K Perner, K Häusler, T Leipe, L Zillén, A Kotilainen, E Jansen, R R Schneider, R Oeberst, H Arz, J S Sinninghe Damsté
The transition from hunter-gatherer-fisher groups to agrarian societies is arguably the most significant change in human prehistory. In the European plain there is evidence for fully developed agrarian societies by 7,500 cal. yr BP, yet a well-established agrarian society does not appear in the north until 6,000 cal. yr BP for unknown reasons. Here we show a sudden increase in summer temperature at 6,000 cal. yr BP in northern Europe using a well-dated, high resolution record of sea surface temperature (SST) from the Baltic Sea...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29126271/examining-the-transitions-between-cigarette-and-smokeless-tobacco-product-use-in-the-united-states-using-the-2002-2003-and-2010-2011-longitudinal-cohorts
#19
Joanne T Chang, David T Levy, Rafael Meza
Introduction: Smokeless tobacco (SLT) use in the US has remained constant or even increased slightly in recent years, while smoking has continuously decreased. Characterization of transitions between tobacco products is critical to understand the reasons behind the continuing use of smokeless tobacco. Methods: Two longitudinal cohorts of Tobacco Use Supplement of the Current Population Survey (TUS-CPS), 2002-2003 (n=14,996) and 2010-2011 (n=18,226) were used to examine transitions between cigarette and SLT use over one-year periods...
November 8, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/29125205/reconstructing-pectoral-appendicular-muscle-anatomy-in-fossil-fish-and-tetrapods-over-the-fins-to-limbs-transition
#20
Julia L Molnar, Rui Diogo, John R Hutchinson, Stephanie E Pierce
The question of how tetrapod limbs evolved from fins is one of the great puzzles of evolutionary biology. While palaeontologists, developmental biologists, and geneticists have made great strides in explaining the origin and early evolution of limb skeletal structures, that of the muscles remains largely unknown. The main reason is the lack of consensus about appendicular muscle homology between the closest living relatives of early tetrapods: lobe-finned fish and crown tetrapods. In the light of a recent study of these homologies, we re-examined osteological correlates of muscle attachment in the pectoral girdle, humerus, radius, and ulna of early tetrapods and their close relatives...
November 10, 2017: Biological Reviews of the Cambridge Philosophical Society
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