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https://www.readbyqxmd.com/read/28545262/photoluminescence-properties-of-polymorphic-modifications-of-low-molecular-weight-poly-3-hexylthiophene
#1
Takashi Kobayashi, Keita Kinoshita, Akitsugu Niwa, Takashi Nagase, Hiroyoshi Naito
The structural and photoluminescence (PL) properties of thin films of poly(3-hexylthophene) (P3HT) with molecular weights (MWs) of 3000 and 13,300 have been investigated. Although high MW P3HT always self-organizes into one packing structure (form I), low MW P3HT forms two different packing structures (forms I and II) depending on the fabrication conditions. In this work, several fabrication techniques have been examined to obtain form II samples with little inclusion of a form I component. It is found that drop-cast thin films of low MW P3HT (form II) exhibit a PL spectrum that is different from that of form I and does not contain the form I component...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28545253/encapsulation-of-the-antioxidant-r-%C3%AE-lipoic-acid-in-permethylated-%C3%AE-and-%C3%AE-cyclodextrins-thermal-and-x-ray-structural-characterization-of-the-1-1-inclusion-complexes
#2
Mino R Caira, Susan A Bourne, Buntubonke Mzondo
The naturally occurring compound α-lipoic acid (ALA) is implicated in manifold critical biological roles and its potent antioxidant properties and potential for treatment of various diseases have led to its widespread use as a dietary supplement. However, shortcomings of poor aqueous solubility and low thermal stability have hampered its development as a medicinal agent, prompting the use of cyclodextrins (CDs) to address these problems. The paucity of published structural data on the nature of the interactions between ALA and CDs motivated the present study, which describes the synthesis and X-ray structural elucidation of crystalline inclusion complexes between the biologically relevant R-(+)-α-lipoic acid (RALA) and the host molecules permethylated α-CD (TMA) and permethylated β-CD (TMB)...
May 23, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28545199/cyberknife-radioablation-of-prostate-cancer-%C3%A2-preliminary-results-for-400-patients
#3
Leszek Miszczyk, Agnieszka Namysł Kaletka, Aleksandra Napieralska, Grzegorz Woźniak, Małgorzata Stąpór Fudzińska, Grzegorz Głowacki, Andrzej Tukiendorf
Objectives: To evaluate the tolerance and effectiveness of stereotactic ablative radiotherapy (SABR) applied in the treatment of low and intermediate risk (LR & IR) prostate cancer patients (PCP) and provide an evaluation of the level of risk group impact on treatment results. In addition, androgen deprivation therapy (ADT) usage and prostatic specific antigen (PSA) decline after SABR were assessed. Material and Methods: A total of 400 PCP (213 LR and 187 IR, including T2c) were irradiated with a CyberKnife using fd 7...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28545169/plasma-cystatin-c-is-a-predictor-of-renal-dysfunction-aclf-and-mortality-in-patients-with-acutely-decompensated-liver-cirrhosis
#4
Daniel Markwardt, Lesca Holdt, Christian Steib, Andreas Benesic, Flemming Bendtsen, Mauro Bernardi, Richard Moreau, Daniel Teupser, Julia Wendon, Frederik Nevens, Jonel Trebicka, Elisabet Garcia, Marco Pavesi, Vicente Arroyo, Alexander L Gerbes
BACKGROUND: The development of acute-on-chronic liver failure (ACLF) in patients with liver cirrhosis is associated with high mortality rates. Renal failure is the most significant organ dysfunction that occurs in ACLF. So far there are no biomarkers predicting ACLF. AIM: To investigate whether Cystatin C (CysC) and neutrophil gelatinase-associated lipocalin (NGAL) can predict development of renal dysfunction (RD), hepatorenal syndrome (HRS), ACLF and mortality, respectively...
May 25, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28545155/rapid-diagnostic-tests-for-typhoid-and-paratyphoid-enteric-fever
#5
REVIEW
Lalith Wijedoru, Sue Mallett, Christopher M Parry
BACKGROUND: Differentiating both typhoid (Salmonella Typhi) and paratyphoid (Salmonella Paratyphi A) infection from other causes of fever in endemic areas is a diagnostic challenge. Although commercial point-of-care rapid diagnostic tests (RDTs) for enteric fever are available as alternatives to the current reference standard test of blood or bone marrow culture, or to the widely used Widal Test, their diagnostic accuracy is unclear. If accurate, they could potentially replace blood culture as the World Health Organization (WHO)-recommended main diagnostic test for enteric fever...
May 26, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28545031/sociodemographic-and-economic-factors-are-associated-with-weight-gain-between-before-and-after-cancer-diagnosis-results-from-the-prospective-population-based-nutrinet-sant%C3%A3-cohort
#6
Philippine Fassier, Laurent Zelek, Patrick Bachmann, Marina Touillaud, Nathalie Druesne-Pecollo, Valentin Partula, Serge Hercberg, Pilar Galan, Patrice Cohen, Hélène Hoarau, Paule Latino-Martel, Bernard Srour, Rebeca Gonzalez, Mélanie Deschasaux, Mathilde Touvier
PURPOSE: While many cancer patients are affected by weight loss, others tend to gain weight, which may impact prognosis and risk of recurrence and of second cancer. The aim of this prospective study was to investigate weight variation between before and after cancer diagnosis and socio-demographic, economic, lifestyle and clinical factors associated with moderate-to-severe weight gain. METHODS: 1051 incident cases of first primary cancer were diagnosed in the NutriNet-Santé cohort between 2009 and 2015...
May 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28544976/long-range-transport-of-xe-133-emissions-under-convective-and-non-convective-conditions
#7
J Kuśmierczyk-Michulec, M Krysta, M Kalinowski, E Hoffmann, J Baré
To investigate the transport of xenon emissions, the Provisional Technical Secretariat (PTS) operates an Atmospheric Transport Modelling (ATM) system based on the Lagrangian Particle Dispersion Model FLEXPART. The air mass trajectory ideally provides a "link" between a radionuclide release and a detection confirmed by radionuclide measurements. This paper investigates the long-range transport of Xe-133 emissions under convective and non-convective conditions, with special emphasis on evaluating the changes in the simulated activity concentration values due to the inclusion of the convective transport in the ATM simulations...
May 22, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28544949/the-influence-of-shoe-aging-on-children-running-biomechanics
#8
Alexis Herbaut, Pascale Chavet, Maxime Roux, Nils Guéguen, Franck Barbier, Emilie Simoneau-Buessinger
Athletic children are prone to overuse injuries, especially at the heel and knee. Since footwear is an extrinsic factor of lower limb injury risk, the aim of this study was to assess the influence of shoe aging on children running biomechanics. Fourteen children active in sports participated in a laboratory biomechanical evaluation. A new pair of shoes was provided to each participant at an inclusion visit. Four months later, the participants performed a running task and their kinematics and kinetics were assessed both with their used shoes and with a new pair of shoes identical to the first...
May 17, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28544810/the-best-models-of-metabolism
#9
REVIEW
Eberhard O Voit
Biochemical systems are among of the oldest application areas of mathematical modeling. Spanning a time period of over one hundred years, the repertoire of options for structuring a model and for formulating reactions has been constantly growing, and yet, it is still unclear whether or to what degree some models are better than others and how the modeler is to choose among them. In fact, the variety of options has become overwhelming and difficult to maneuver for novices and experts alike. This review outlines the metabolic model design process and discusses the numerous choices for modeling frameworks and mathematical representations...
May 19, 2017: Wiley Interdisciplinary Reviews. Systems Biology and Medicine
https://www.readbyqxmd.com/read/28544656/the-cellular-ceramide-transport-protein-cert-promotes-chlamydia-psittaci-infection-and-controls-bacterial-sphingolipid-uptake
#10
Sophia Koch-Edelmann, Sebastian Banhart, Essa M Saied, Laura Rose, Lukas Aeberhard, Michael Laue, Joerg Doellinger, Christoph Arenz, Dagmar Heuer
Chlamydiaceae are bacterial pathogens that cause diverse diseases in humans and animals. Despite their broad host and tissue tropism, all Chlamydia species share an obligate intracellular cycle of development and have evolved sophisticated mechanisms to interact with their eukaryotic host cells. Here, we have analyzed interactions of the zoonotic pathogen Chlamydia psittaci with a human epithelial cell line. We found that C. psittaci recruits the ceramide transport protein CERT to its inclusion. Chemical inhibition and CRISPR/Cas9-mediated knockout of CERT showed that CERT is a crucial factor for C...
May 19, 2017: Cellular Microbiology
https://www.readbyqxmd.com/read/28544636/visit-to-visit-systolic-blood-pressure-variability-predicts-treatment-related-adverse-event-of-hyponatremia-in-sprint
#11
Abhinav Goyal, Kenechukwu Mezue, Janani Rangaswami
Hypertension is a common condition and an important cardiovascular risk factor. SPRINT trial showed that the beneficial effects of targeting systolic blood pressure <120 mmHg were accompanied by more adverse events. De-identified SPRINT database was used for this analysis. All subjects in each group that achieved their respective target blood pressure (<120, intensive; <140, standard) were included. Only readings after reaching target blood pressure for the first time were included. Subjects that never reached target or had <2 readings upon reaching target were excluded...
May 25, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/28544635/a-robust-water-based-functional-binder-framework-for-high-energy-lithium-sulfur-batteries
#12
Matthew James Lacey, Viking Österlund, Fabian Jeschull, Andreas Bergfelt, Tim Bowden, Daniel Brandell
We report here a water-based functional binder framework for the lithium-sulfur battery system, based on the general combination of a polyether and an amide-containing polymer. These binders are applied here to positive electrodes optimised towards high energy electrochemical performance based only on commercially available materials. Electrodes with up to 4 mAh cm-2 capacity and 97 - 98% coulombic efficiency are achievable in electrodes with a 65% total sulfur content and a poly(ethylene oxide):poly(vinylpyrrolidone) (PEO:PVP) binder system...
May 19, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28544523/the-effect-of-allergen-immunotherapy-in-the-onset-of-new-sensitizations-a-meta-analysis
#13
REVIEW
Gabriele Di Lorenzo, Maria Stefania Leto-Barone, Simona La Piana, Antonella Plaia, Danilo Di Bona
BACKGROUND: Although the preventive efficacy of allergen immunotherapy (AIT) in the onset of new allergen sensitizations has been asserted by many reviews, position papers, and consensus conferences, the evidence available is from only 3 studies. The objective of this work was a systematic review to evaluate the preventive efficacy of AIT in the onset of new allergen sensitizations. The end-point was the risk difference (RD) in the onset of new allergen sensitizations between patients treated with AIT and pharmacotherapy...
May 23, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28544519/the-effect-of-helium-oxygen-assisted-mechanical-ventilation-on-chronic-obstructive-pulmonary-disease-exacerbation-a-systemic-review-and-meta-analysis
#14
Xu Wu, Chuan Shao, Liang Zhang, Jinjing Tu, Hui Xu, Zhihui Lin, Shuguang Xu, Biyun Yu, Yaodong Tang, Shanqun Li
BACKGROUND: Chronic obstructive pulmonary disease (COPD) is often accompanied by acute exacerbations. Patients of COPD exacerbation suffering from respiratory failure often need the support of mechanical ventilation. Helium-oxygen can be used to reduce airway resistance during mechanical ventilation. The aim of this study is to evaluate the effect of helium-oxygen-assisted mechanical ventilation on COPD exacerbation through a meta-analysis. METHODS: A comprehensive literature search through databases of Pub Med (1966∼2016), Ovid MEDLINE (1965∼2016), Cochrane EBM (1991∼2016), EMBASE (1974∼2016) and Ovid MEDLINE was performed to identify associated studies...
May 24, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/28544478/the-protective-role-of-physical-activity-on-type-2-diabetes-an-analysis-of-effect-modification-by-race-ethnicity
#15
William R Boyer, James R Churilla, Samantha F Ehrlich, Scott E Crouter, Lyndsey M Hornbuckle, Eugene C Fitzhugh
BACKGROUND: It is well known physical activity (PA) plays a role in the prevention of type 2 diabetes (T2D). However, the extent to which PA may impact T2D risk among different race-ethnic groups is unknown. Therefore, the purpose of this study was to systematically examine the effect modification of race-ethnicity on PA and T2D. METHODS: PubMed and Embase databases were systematically searched through June 2016. Study assessment for inclusion was conducted in three phases: 1) title review (N = 13,022), 2) abstract review (N = 2,200), and 3) full text review (N = 265)...
May 24, 2017: Journal of Diabetes
https://www.readbyqxmd.com/read/28544459/plaque-removal-with-triple-headed-vs-single-headed-manual-toothbrushes-a-systematic-review
#16
REVIEW
S M Kalf-Scholte, G A Van der Weijden, Ewp Bakker, D E Slot
OBJECTIVE: The aim of this systematic review was to establish the effectiveness of brushing with a triple-headed manual toothbrush compared to a single-headed manual toothbrush on plaque removal. MATERIALS AND METHODS: The MEDLINE-PubMed and Cochrane-CENTRAL databases were searched. The inclusion criteria were clinical trials conducted with humans without fixed orthodontic appliances who were not dental care professionals. Papers that evaluated the effect of toothbrushing with a triple-headed manual toothbrush compared to a single-headed manual toothbrush on plaque removal were included...
May 22, 2017: International Journal of Dental Hygiene
https://www.readbyqxmd.com/read/28544451/protection-and-restriction-a-mixed-methods-study-of-self-reported-well-being-among-youth-with-intellectual-disabilities
#17
Petra Boström, Malin Broberg
BACKGROUND: As most mental health studies of school-aged children with intellectual and developmental disabilities (IDD) are based on proxy ratings, the subjective views of these young persons are rarely explored. The present study explores experiences of well-being, mental ill-health, family, school, and peer relations in students in special education. METHODS: Ten students in special education, aged 13-16 years, answered the Wellbeing in Special Education Questionnaire (WellSEQ) and participated in semi-structured interviews...
May 19, 2017: Journal of Applied Research in Intellectual Disabilities: JARID
https://www.readbyqxmd.com/read/28544371/high-loading-crystals-of-tetraaryladamantanes-and-the-uptake-and-release-of-aromatic-hydrocarbons-from-the-gas-phase
#18
Clemens Richert, Pierre-Emmanuel Alexandre, Alexander Schwenger, Wolfgang Frey
Recently, a tetraphenyladamantane octamethylether was shown to encapsulate a wide range of small molecules in its crystals. Uptake and release from the liquid phase were demonstrated, and crystalline inclusion complexes were prepared that act as formulation for obnoxious reagents. Less than two equivalents of guest molecules were found in the crystal structures, though. Here we report the synthesis of 1,3,5,7-tetrakis(2,4-diethoxyphenyl)-adamantane (TEO) and twelve X-ray crystal structures that contain up to 3...
May 23, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28544356/older-people-s-experiences-of-falling-and-perceived-risk-of-falls-in-the-community-a-narrative-synthesis-of-qualitative-research
#19
REVIEW
Siobhan Gardiner, Margaret Glogowska, Catherine Stoddart, Sarah Pendlebury, Daniel Lasserson, Debra Jackson
AIM: To examine qualitative research exploring older people's experiences of falling and the perceived risk of falling in the community. This will contribute new insights into how falling is perceived by the older community. BACKGROUND: Falls are a major problem for older people and healthcare services across the world. Accidental falls in the community are a persistent problem that is generally recognised as an intrinsic risk of ageing. This review provides a new synthesis of evidence that considers older people's perception of falls in the community as new insights are needed if the increasing problems of falls are to be addressed...
May 22, 2017: International Journal of Older People Nursing
https://www.readbyqxmd.com/read/28544333/image-based-modeling-and-scoring-of-howell-jolly-bodies-in-human-erythrocytes
#20
Oguzhan Angay, Mike Friedrich, Jürgen Pinnecker, Henning Hintzsche, Helga Stopper, Klaus Hempel, Katrin G Heinze
The spleen selectively removes cells with intracellular inclusions, for example, detached nuclear fragments in circulating erythrocytes, called Howell-Jolly Bodies (HJBs). With absent or deficient splenic function HJBs appear in the peripheral blood and can be used as a simple and non-invasive risk-indicator for fulminant potentially life-threatening infection after spleenectomy. However, it is still under debate whether counting of the rare HJBs is a reliable measure of splenic function. Investigating HJBs in premature erythrocytes from patients during radioiodine therapy gives about 10 thousand times higher HJB counts than in blood smears...
May 24, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
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