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Transitive reasoning

Madhab Lamichhane, Joseph C Gardiner, Nicole R Bianco, Steven J Szymkiewicz, Ranjan K Thakur
PURPOSE: The wearable cardioverter defibrillator (WCD) is generally used for short periods of sudden cardiac death (SCD) risk; circumstances may occasionally result in prolonged use (over 1 year). The aim of this study was to determine the benefits and risks of prolonged use in patients with systolic heart failure (HF). METHODS: ZOLL's post-market US database included adult patients (≥18 years) with ischemic and/or non-ischemic cardiomyopathy (ICM, NICM) and at least 1 year of use...
October 17, 2016: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
Joanna J Hoppins, David R Gruber, Heather L Miears, Alexey S Kiryutin, Rustem D Kasymov, Darya V Petrova, Anton V Endutkin, Alexander V Popov, Alexandra V Yurkovskaya, Stanislav O Fedechkin, Jacob A Brockerman, Dmitry O Zharkov, Serge L Smirnov
8-oxoguanine is one of the most abundant and impactful oxidative DNA lesions. However, the reasons underlying its effects, especially those not directly explained by the altered base pairing ability, are poorly understood. We report the effect of the lesion on the action of EcoRI, a widely used restriction endonuclease. Introduction of 8-oxoguanine inside, or adjacent to, the GAATTC recognition site embedded within the Drew-Dickerson dodecamer sequence notably reduced the EcoRI activity. Solution NMR revealed that 8-oxoguanine in the DNA duplex causes substantial alterations in the sugar-phosphate backbone conformation, inducing a BI→BII transition...
2016: PloS One
Jennifer Kirsty Harrison, Azucena Garcia Garrido, Sarah J Rhynas, Gemma Logan, Alasdair M J MacLullich, Juliet MacArthur, Susan Shenkin
BACKGROUND: institutionalisation following acute hospital admission is common and yet poorly described, with policy documents advising against this transition. OBJECTIVE: to characterise the individuals admitted to a care home on discharge from an acute hospital admission and to describe their assessment. DESIGN AND SETTING: a retrospective cohort study of people admitted to a single large Scottish teaching hospital. SUBJECTS: 100 individuals admitted to the acute hospital from home and discharged to a care home...
October 15, 2016: Age and Ageing
Hamde Nazar, Steven Brice, Nasima Akhter, Adetayo Kasim, Ann Gunning, Sarah P Slight, Neil W Watson
OBJECTIVES: To evaluate an electronic patient referral system from one UK hospital Trust to community pharmacies across the North East of England. SETTING: Two hospital sites in Newcastle-upon-Tyne and 207 community pharmacies. PARTICIPANTS: Inpatients who were considered to benefit from on-going support and continuity of care after leaving hospital. INTERVENTION: Electronic transmission of an information related to patient's medicines to their nominated community pharmacy...
October 14, 2016: BMJ Open
Signe Hanghøj, Kirsten A Boisen, Kjeld Schmiegelow, Bibi Hølge-Hazelton
BACKGROUND: International guidelines recommend planned and structured transition programmes for adolescents with chronic illness because inadequate transition may lead to poor disease control and risk of lacking outpatient follow-up. OBJECTIVE: To investigate the feasibility of a transition intervention aimed at adolescents with chronic illness focusing on declines, drop-outs, no-shows and advantages and disadvantages of participating. METHODS: We invited 236 adolescents (12-20 years) with juvenile idiopathic arthritis (JIA) to participate in a randomised controlled trial (RCT) transition intervention...
October 14, 2016: International Journal of Adolescent Medicine and Health
Claudio Feliciani, Katsuhiro Nishinari
This paper presents an experimental study on pedestrian bidirectional streams and the mechanisms leading to spontaneous lane formation by examining the flow formed by two groups of people walking toward each other in a mock corridor. Flow ratio is changed by changing each group size while maintaining comparable total flow and density. By tracking the trajectories of each pedestrian and analyzing the data obtained, five different phases were recognized as contributing to the transition from unidirectional to bidirectional flow including the spontaneous creation and dissolution of lanes...
September 2016: Physical Review. E
Eric Goudie, Mehdi Tahiri, Moishe Liberman
VATS lobectomy is a safe and effective treatment strategy for operable stage I and II lung cancer. It has a similar five-year survival compared to open lobectomy (thoracotomy). VATS lobectomy is associated with less postoperative complications and shorter hospital length of stay when compared to lobectomy by thoracotomy. VATS lobectomy has not been widely adopted by the thoracic surgical community, in part, due to technical reasons. Pulmonary artery branch manipulation in VATS lobectomy is one of the most critical parts of the procedure, especially when endostaplers are used for ligation and division of the vessel...
October 6, 2016: Surgical Technology International
N Schunck, L M Robledo
This article reviews how nuclear fission is described within nuclear density functional theory. A distinction should be made between spontaneous fission, where half-lives are the main observables and quantum tunnelling the essential concept, and induced fission, where the focus is on fragment properties and explicitly time-dependent approaches are often invoked. Overall, the cornerstone of the density functional theory approach to fission is the energy density functional formalism. The basic tenets of this method, including some well-known tools such as the Hartree-Fock-Bogoliubov (HFB) theory, effective two-body nuclear potentials such as the Skyrme and Gogny force, finite-temperature extensions and beyond mean-field corrections, are presented succinctly...
November 2016: Reports on Progress in Physics
Peter Lekkas, Catherine Paquet, Natasha J Howard, Mark Daniel
Place and health are inextricably entwined. Whilst insights have been gained into the associations between places, such as neighbourhoods, and health, the understanding of these relationships remains only partial. One of the reasons for this relates to time and change and the inter-relationships between the dynamic nature of both neighbourhoods and health. This paper argues that the lifecourse of place can be used as a conceptual framework to understand the evolution and ongoing development of neighbourhoods, and their impact on the geographies of health, past, present and future...
September 17, 2016: Social Science & Medicine
Heidi Collins Fantasia
It is estimated that up to 80% of women experience symptoms related to declining estrogen levels that occur with menopause. The most common bothersome symptoms reported by women during and after this transition are vasomotor symptoms, which can include hot flashes, flushing, night sweats, and sleep disturbances. These symptoms are the most common reason women seek care during menopause. Until recently, the mainstay of treatment and symptom relief has been estrogen supplementation. In 2013, the U.S. Food and Drug Administration approved paroxetine, a low-dose selective serotonin reuptake inhibitor, as the first nonhormonal treatment for moderate to severe vasomotor symptoms of menopause...
October 2016: Nursing for Women's Health
Jelena Osmanovic-Barilar, Melita Salkovic-Petrisi
Hormone therapy (HT) is prescribed during or after menopausal transition to replace the decline in estrogen and progesterone levels. While some studies indicate that estrogen and progesterone depletion in postmenopausal women might carry a significant risk for developing sporadic Alzheimer's disease (sAD), which may be reduced by HT, recent clinical trials oppose this beneficial effect. This review points to possible reasons for these mixed data by considering the issues of both preclinical and clinical trials, in particular, the representativeness of animal models, timing of HT initiation, type of HT (different types of estrogen compounds, estrogen monotherapy vs...
October 6, 2016: Drugs & Aging
Mark L Wahlqvist
Food systems have changed markedly with human settlement and agriculture, industrialisation, trade, migration and now the digital age. Throughout these transitions, there has been a progressive population explosion and net ecosystem loss and degradation. Climate change now gathers pace, exacerbated by ecological dysfunction. Our health status has been challenged by a developing people-environment mismatch. We have regarded ecological conquest and innovative technology as solutions, but have not understood how ecologically dependent and integrated we are...
December 2016: Asia Pacific Journal of Clinical Nutrition
Xiongwu Wu, Juyong Lee, Bernard R Brooks
Protein internal ionizable groups can exhibit large shifts in pKa values. Although the environment and interaction changes have been extensively studied both experimentally and computationally, direct calculation of pKa values of these internal ionizable groups in explicit water is challenging due to energy barriers in solvent interaction and in conformational transition. The virtual mixture of multiple states (VMMS) method is a new approach designed to study chemical state equilibrium. This method constructs a virtual mixture of multiple chemical states in order to sample the conformational space of all states simultaneously and to avoid crossing energy barriers related to state transition...
October 4, 2016: Journal of Physical Chemistry. B
Nicholas G Wysham, Michael J Hochman, Steven P Wolf, Christopher E Cox, Arif H Kamal
CONTEXT: Quality metrics for intensive care unit (ICU)-based palliative care have been proposed but it is unknown how consultative palliative care can contribute to performance on these measures. OBJECTIVES: Assess adherence to proposed quality metrics of intensive care unit (ICU)-based palliative care by palliative care specialists. METHODS: Surrogates for 9/14 patient-level quality metrics were assessed in all patients who received an initial palliative care specialist consult while in an ICU from 10/26/2012 to 1/16/2015 in the Global Palliative Care Quality Alliance, a nationwide palliative care quality registry...
September 30, 2016: Journal of Pain and Symptom Management
M E Quinta-Ferreira, F D S Sampaio Dos Aidos, C M Matias, P J Mendes, J C Dionísio, R M Santos, L M Rosário, R M Quinta-Ferreira
Zinc, a transition metal existing in very high concentrations in the hippocampal mossy fibers from CA3 area, is assumed to be co-released with glutamate and to have a neuromodulatory role at the corresponding synapses. The synaptic action of zinc is determined both by the spatiotemporal characteristics of the zinc release process and by the kinetics of zinc binding to sites located in the cleft area, as well as by their concentrations. This work addresses total, free and complexed zinc concentration changes, in an individual synaptic cleft, following single, short and long periods of evoked zinc release...
October 1, 2016: Journal of Computational Neuroscience
Lieve Van den Block, Winne Ko, Guido Miccinesi, Sarah Moreels, Ge A Donker, Bregje Onwuteaka-Philipsen, Tomas V Alonso, Luc Deliens
PURPOSE: This four-country study (Belgium, the Netherlands, Italy and Spain) examines prevalence and types of final transitions between care settings of cancer patients and the extent to which patient/family wishes are cited as a reason for the transition. METHODS: Data were collected from the EUROSENTI-MELC study over a 2-year period. General practitioners within existing Sentinel Networks registered weekly all deaths of patients within practices using a standardized questionnaire...
September 21, 2016: Journal of Public Health
Jianyi Ma
Master equation is a successful model to describe the conventional heating reaction, it is expanded to capture the "microwave effect" in this work. The work equation of "microwave effect" included master equation presents the direct heating, indirect heating, and nonthermal effect about the microwave field. The modified master equation provides a clear physics picture to the nonthermal microwave effect: (1) The absorption and the emission of the microwave, which is dominated by the transition dipole moment between two corresponding states and the intensity of the microwave field, provides a new path to change the reaction rate constants...
October 11, 2016: Journal of Physical Chemistry. A
Philipp Genseke, Julian M M Rogasch, Ingo G Steffen, Grit Neumann, Ivayla Apostolova, Juri Ruf, Anke Rißmann, Dagobert Wiemann, Uwe-Bernd Liehr, Martin Schostak, Holger Amthauer, Christian Furth
AIM: After detection of obstructive uropathy (OU), the indication for or against surgery is primarily based on the differential renal function (DRF). This is to compare functional magnetic resonance urography (fMRU) with dynamic renal scintigraphy (DRS) to assess OU and DRF in infants and children. PATIENTS, METHODS: Retrospective analysis in 30 patients (female: 16; male: 14; median age: 5.5 years [0.2-16.5]), divided into subgroup A (age: 0-2 years; n = 16) and B (> 2-17 years; n = 14)...
August 29, 2016: Nuklearmedizin. Nuclear Medicine
Jien-Lian Chen, Chuping Lee, I-Chung Lu, Chia-Lung Chien, Yuan-Tseh Lee, Wei-Ping Hu, Chi-Kung Ni
Electrospray ionization (ESI) and matrix-assisted laser desorption/ionization (MALDI) mainly generate protonated ions from peptides and proteins but sodiated (or potassiated) ions from carbohydrates. The ion intensities of sodiated (or potassiated) carbohydrates generated by ESI and MALDI are generally lower than those of protonated peptides and proteins. Ab initio calculations and transition state theory were used to investigate the reasons for the low detection sensitivity for underivatized carbohydrates...
September 27, 2016: Journal of Mass Spectrometry: JMS
Li-Sheng Zheng, Jun-Ping Yang, Yun Cao, Li-Xia Peng, Rui Sun, Ping Xie, Meng-Yao Wang, Dong-Fang Meng, Dong-Hua Luo, Xiong Zou, Ming-Yuan Chen, Hai-Qiang Mai, Ling Guo, Xiang Guo, Jian-Yong Shao, Bi-Jun Huang, Wei Zhang, Chao-Nan Qian
Nasopharyngeal carcinoma (NPC) has the highest rate of metastasis among head and neck cancers, and distant metastasis is the major reason for treatment failure. The underlying molecular mechanisms of NPC metastasis are not fully understood. Here we report the identification of serine protease inhibitor Kazal-type 6 (SPINK6) as a functional regulator of NPC metastasis via epidermal growth factor receptor (EGFR) signaling. SPINK6 mRNA was upregulated in tumor and highly metastatic NPC cells. Immunohistochemical staining of 534 NPCs revealed elevated SPINK6 expression as an independent unfavorable prognostic factor for overall, disease-free, and distant metastasis-free survival...
September 26, 2016: Cancer Research
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