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https://www.readbyqxmd.com/read/29778020/eosin-y-sensitized-core-shell-tio-2-zno-nano-structured-photoanodes-for-dye-sensitized-solar-cell-applications
#1
V S Manikandan, Akshaya K Palai, Smita Mohanty, Sanjay K Nayak
In the current investigation, TiO2 and TiO2 -ZnO (core-shell) spherical nanoparticles were synthesized by simple combined hydrolysis and refluxing method. A TiO2 core nanomaterial on the shell material of ZnO was synthesized by utilizing variable ratios of ZnO. The structural characterization of TiO2 -ZnO core/shell nanoparticles were done by XRD analysis. The spherical structured morphology of the TiO2 -ZnO has been confirmed through field emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM) studies...
May 3, 2018: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29776980/free-tax-services-in-pediatric-clinics
#2
Lucy E Marcil, Michael K Hole, Larissa M Wenren, Megan S Schuler, Barry S Zuckerman, Robert J Vinci
OBJECTIVES: The earned income tax credit (EITC), refundable monies for America's working poor, is associated with improved child health. Yet, 20% of eligible families do not receive it. We provided free tax preparation services in clinics serving low-income families and assessed use, financial impact, and accuracy. METHODS: Free tax preparation services ("StreetCred") were available at 4 clinics in Boston in 2016 and 2017. We surveyed a convenience sample of clients ( n = 244) about experiences with StreetCred and previous tax services and of nonparticipants ( n = 100; 69% response rate) and clinic staff ( n = 41; 48% response rate) about acceptability and feasibility...
May 18, 2018: Pediatrics
https://www.readbyqxmd.com/read/29776790/-modern-treatment-of-mesenteric-ischemia
#3
Alexandre Nuzzo, Audrey Huguet, Olivier Corcos
Acute mesenteric ischemia is a highly morbid affliction which requires urgent care. Acute mesenteric ischemia consists in an ischemia injury of the small bowel, secondary to vascular insufficiency, either occlusive (thrombosis, embolism, arterial, venous) or non-occlusive (low flow or vasospasm). Given that the superior mesenteric artery supplies the small bowel as well as the right part of the colon, any ischemic process involving the right colon should be considered an acute mesenteric ischemia until proven otherwise...
May 15, 2018: La Presse Médicale
https://www.readbyqxmd.com/read/29776548/a-label-free-electrochemical-biosensor-for-direct-detection-of-rack-1-by-using-disposable-low-cost-and-reproducible-ito-based-electrode
#4
Hakan Törer, Elif Burcu Aydın, Mustafa Kemal Sezgintürk
In this study we designed an ultrasensitive electrochemical immunosensor for RACK 1 detection using 11-cyanoundecyltrimethoxysilane (11-CUTMS) as a immobilization matrix to immobilize biorecognition element. The used silane agent (11-CUTMS) provides a favorable platform for efficient loading of anti-RACK 1 antibody. The effective loading of the biorecognition element on the 11-CUTMS matrix was monitored by scanning electron microscopy (SEM), atomic force microscopy (AFM) images and fourier transform infrared spectroscopy (FTIR) spectra...
September 18, 2018: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29776456/pancreatitis-and-systemic-coronavirus-infection-in-a-ferret-mustela-putorius-furo
#5
Sarah E Wills, Hugues H Beaufrère, Brigitte A Brisson, Russell S Fraser, Dale A Smith
A 1-y-old spayed female ferret (Mustela putorius furo) was referred for additional diagnostic evaluation after physicalexamination by the referring veterinarian revealed a cranial abdominal mass. The ferret had a 2-wk history of inappetence,weight loss, and lethargy. On presentation, the ferret was thin, and an approximately 3-cm mass was palpable in the cranialabdomen. No other abnormalities were noted. Abdominal ultrasonography confirmed the presence of a soft-tissue structure, with a moderate blood supply and mesenteric lymphadenopathy...
May 18, 2018: Comparative Medicine
https://www.readbyqxmd.com/read/29776312/on-the-prospects-of-using-high-intensity-thz-pulses-to-induce-ultrafast-temperature-jumps-in-liquid-water
#6
Pankaj Kr Mishra, Vincent Bettaque, Oriol Vendrell, Robin Santra, Ralph Welsch
Ultrashort, high-intensity THz pulses, e.g., created at free-electron laser facilities, allow for direct investigation as well as the driving of intermolecular modes in liquids like water and thus will deepen our understanding of the hydrogen bonding network. In this work, the temperature-jump (T-jump) of water induced by THz radiation is simulated for ten different THz frequencies in the range from 3 to 30 THz and five different pulse intensities in the range from 1 × 1011 to 5 × 1012 W/cm2 employing both ab initio molecular dynamics (AIMD) and force field molecular dynamics (FFMD) approaches...
May 18, 2018: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29775852/biomimetic-magnetoelectric-nanocrystals-synthesized-by-polymerization-of-heme-as-advanced-nanomaterials-for-biosensing-application
#7
Jeong Eun Hyeon, Da Woon Jeong, Young Jin Ko, Seung Wook Kim, Chulhwan Park, Sung Ok Han
Regardless of the malaria disease risk, the malaria parasite Plasmodium falciparum has an interesting mechanism. During its growth within the red blood cell, toxic free heme is converted into an insoluble crystalline form called the malaria pigment, or hemozoin. In particular, natural hemozoin nanocrystals can provide multiple applications in biosensing fields for health care and diagnosis as similar to artificial metal nanoparticles. In this study, the heme was biologically synthesized and polymerized by Corynebacterium glutamicum and final polymer was applied as a biomimetic conductive biopolymer...
May 10, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29775302/free-base-nicotine-determination-in-electronic-cigarette-liquids-by-1-h-nmr-spectroscopy
#8
Anna K Duell, James F Pankow, David H Peyton
E-liquids usually contain significant nicotine, which will exist primarily in two forms, monoprotonated and free-base the proportions are alterable through the effective pH of the medium. The fraction of nicotine in the free-base form is αfb , with 0 < αfb < 1. When dosed via aerosol, the two nicotine forms have different mechanisms and kinetics of delivery, as well as differing implications for harshness of the inhaled aerosol, so αfb is relevant regarding abuse liability. Previous attempts to determine αfb in electronic cigarette liquids and vapor have been flawed...
May 18, 2018: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/29774598/evaluation-of-current-strategies-for-surveillance-and-management-of-donor-specific-antibodies-single-center-study
#9
Daniel Sullivan, Chul Ahn, Ang Gao, Chantale Lacelle, Fernando Torres, Srinivas Bollineni, Amit Banga, Jessica Mullins, Manish Mohanka, Steve Ring, Michael Wait, Matthias Peltz, Pavan Duddupudi, Dhiraj Surapaneni, Vaidehi Kaza
BACKGROUND: Although, presence of donor specific antibodies (DSA) is known to impact lung allograft, limited data exists regarding DSA management. METHODS: We did a retrospective study at our center evaluating DSA management in adult lung transplant recipients undergoing lung transplantation between January 1, 2010 and June 30, 2014. Study follow up was completed through October 2017. All recipients were stratified into two groups based on the presence or absence of DSA...
May 17, 2018: Clinical Transplantation
https://www.readbyqxmd.com/read/29772284/effect-of-excipient-properties-water-activity-and-water-content-on-the-disproportionation-of-a-pharmaceutical-salt
#10
Mitulkumar A Patel, Suman Luthra, Sheri L Shamblin, Kapildev K Arora, Joseph F Krzyzaniak, Lynne S Taylor
Excipients are crucial components of most pharmaceutical formulations. In the case of a solid oral dosage formulation containing the salt form of a weakly ionizable drug, excipient selection is critical, as some excipients are known to cause salt disproportionation (conversion of salt to the free form). Therefore, robust formulation design necessitates an in-depth understanding of the factors impacting salt disproportionation during processing or storage as this can negatively impact product quality and performance...
May 14, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29772225/maternal-one-carbon-metabolism-through-increased-oxidative-stress-and-disturbed-angiogenesis-can-influence-placental-apoptosis-in-preeclampsia
#11
REVIEW
Vaishali V Kasture, Deepali P Sundrani, Sadhana R Joshi
Adequate maternal nutrition is critical for a healthy pregnancy outcome and poor maternal nutrition is known to be associated with pregnancy complications like preeclampsia. We have earlier demonstrated that there is an imbalance in the levels of micronutrients (folate and vitamin B12 ) along with low levels of long chain polyunsaturated fatty acids (LCPUFA) and high homocysteine levels in women with preeclampsia. Homocysteine is known to be involved in the formation of free radicals leading to increased oxidative stress...
May 14, 2018: Life Sciences
https://www.readbyqxmd.com/read/29771337/randomized-trial-of-the-impact-of-empowering-childhood-cancer-survivors-with-survivorship-care-plans
#12
Nina S Kadan-Lottick, Wilhelmenia L Ross, Hannah-Rose Mitchell, Jaime Rotatori, Cary P Gross, Xiaomei Ma
Background: A survivorship care plan (SCP), that is, individualized treatment summary and schedule of off-therapy surveillance, will be mandated by January 2019. It is unclear whether SCPs improve adherence to recommended follow-up care in the community. In this trial, we evaluated the impact of randomly assigning childhood cancer survivors to 1) SCPs to be taken to their primary care physician (PCP) to implement or 2) survivorship clinic (SC) on health care quality measures. Methods: Eligibility included cancer diagnosis younger than age 18 years (2000-2012), cancer free, one or more years off therapy, and no prior survivorship clinic attendance...
May 15, 2018: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/29770960/interventions-for-increasing-fruit-and-vegetable-consumption-in-children-aged-five-years-and-under
#13
REVIEW
Rebecca K Hodder, Kate M O'Brien, Fiona G Stacey, Rebecca J Wyse, Tara Clinton-McHarg, Flora Tzelepis, Erica L James, Kate M Bartlem, Nicole K Nathan, Rachel Sutherland, Emma Robson, Sze Lin Yoong, Luke Wolfenden
BACKGROUND: Insufficient consumption of fruits and vegetables in childhood increases the risk of future non-communicable diseases, including cardiovascular disease. Interventions to increase consumption of fruit and vegetables, such as those focused on specific child-feeding strategies and parent nutrition education interventions in early childhood may therefore be an effective strategy in reducing this disease burden. OBJECTIVES: To assess the effectiveness, cost effectiveness and associated adverse events of interventions designed to increase the consumption of fruit, vegetables or both amongst children aged five years and under...
May 17, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29770800/current-and-future-circulating-biomarkers-for-cardiac-amyloidosis
#14
REVIEW
Marco Luciani, Luca Troncone, Federica Del Monte
Cardiac amyloidosis (CA) comprises a heterogeneous group of medical conditions affecting the myocardium. It presents with proteinaceous infiltration with variable degrees of severity, prevalence and evolution. Despite this heterogeneity, erroneous protein folding is the common pathophysiologic process, yielding the formation of a single misfolded protein (monomer) that progressively evolves and ultimately forms amyloid fibers. Additionally, by seeding out from the organs of origin, intermediates called oligomers metastasize and restart the process...
May 17, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29770561/investigating-the-interaction-of-anticancer-drug-temsirolimus-with-human-transferrin-molecular-docking-and-spectroscopic-approach
#15
Anas Shamsi, Azaj Ahmed, Mohd Shahnawaz Khan, Fohad Mabood Husain, Samreen Amani, Bilqees Bano
In our present study, binding between an important anti renal cancer drug temsirolimus and human transferrin (hTF) was investigated employing spectroscopic and molecular docking approach. In the presence of temsirolimus, hyper chromaticity is observed in hTF in UV spectroscopy suggestive of complex formation between hTF and temsirolimus. Fluorescence spectroscopy revealed the occurrence of quenching in hTF in the presence of temsirolimus implying complex formation taking place between hTF and temsirolimus. Further, the mode of interaction between hTF and temsirolimus was revealed to be static by fluorescence quenching analysis at 3 different temperatures...
May 16, 2018: Journal of Molecular Recognition: JMR
https://www.readbyqxmd.com/read/29770397/nitrogen-electroreduction-and-hydrogen-evolution-on-cubic-molybdenum-carbide-a-density-functional-study
#16
Ivana Matanovic, Fernando H Garzon
We report herein a density functional theory study of the nitrogen electroreduction and hydrogen evolution reactions on cubic molybdenum carbide (MoC) in order to investigate the viability of using this material as an electro-catalyst for ammonia synthesis. Free energy diagrams for associative and dissociative Heyrovsky mechanisms showed that nitrogen reduction on cubic MoC(111) can proceed via an associative mechanism and that small negative potentials of -0.3 V vs. standard hydrogen electrode can onset the reduction of nitrogen to ammonia...
May 17, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29769727/microbial-signals-drive-pre-leukaemic-myeloproliferation-in-a-tet2-deficient-host
#17
Marlies Meisel, Reinhard Hinterleitner, Alain Pacis, Li Chen, Zachary M Earley, Toufic Mayassi, Joseph F Pierre, Jordan D Ernest, Heather J Galipeau, Nikolaus Thuille, Romain Bouziat, Manuel Buscarlet, Daina L Ringus, Yitang Wang, Ye Li, Vu Dinh, Sangman M Kim, Benjamin D McDonald, Matthew A Zurenski, Mark W Musch, Glaucia C Furtado, Sergio A Lira, Gottfried Baier, Eugene B Chang, A Murat Eren, Christopher R Weber, Lambert Busque, Lucy A Godley, Elena F Verdú, Luis B Barreiro, Bana Jabri
Somatic mutations in tet methylcytosine dioxygenase 2 (TET2), which encodes an epigenetic modifier enzyme, drive the development of haematopoietic malignancies1-7 . In both humans and mice, TET2 deficiency leads to increased self-renewal of haematopoietic stem cells with a net developmental bias towards the myeloid lineage1,4,8,9 . However, pre-leukaemic myeloproliferation (PMP) occurs in only a fraction of Tet2-/- mice8,9 and humans with TET2 mutations1,3,5-7 , suggesting that extrinsic non-cell-autonomous factors are required for disease onset...
May 16, 2018: Nature
https://www.readbyqxmd.com/read/29768350/docetaxel-oxaliplatin-5fu-and-trastuzumab-as-first-line-therapy-in-patients-with-human-epidermal-receptor-2-positive-advanced-gastric-or-gastroesophageal-junction-cancer-preliminary-results-of-a-phase-ii-study
#18
Giandomenico Roviello, Roberto Petrioli, Valerio Nardone, Pietro Rosellini, Andrea Giovanni Multari, Raffaele Conca, Michele Aieta
The aim of this study is to report first preliminary results of patients enrolled in a phase II study that will investigate the activity and safety of docetaxel, oxaliplatin, and 5-fluorouracil (DOF) in combination with trastuzumab in human epidermal receptor-2 (HER-2) positive patients with advanced gastric or gastroesophageal junction (GEJ) cancer.Treatment consisted of docetaxel 70 mg/m combined with oxaliplatin 130 mg/m on day 1, and continuous infusion 5-fluorouracil mg/m days 1-5 plus trastuzumab at the standard dose on day 1, every 3 weeks for a maximum of 8 cycles...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29767519/molecular-structure-and-permeability-at-the-interface-between-phase-separated-membrane-domains
#19
Rodrigo Maghdissian Cordeiro
Phase-separated membrane domains, also known as lipid rafts, are believed to play an important role in cell function. Although most rafts are sterol-enriched membrane regions, evidence suggests that living cells may also contain gel-like rafts. Interactions between gel and fluid domains have a large impact on membrane properties, as is the case with permeability. The membrane permeability may reach a peak at the main phase transition temperature, by far exceeding the values recorded at the fluid phase. It has been proposed that gel-fluid interfaces are leaky, but the effect has not yet been demonstrated at the molecular level...
May 16, 2018: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29767447/expression-of-ribosomal-and-actin-network-proteins-and-immunochemotherapy-resistance-in-diffuse-large-b-cell-lymphoma-patients
#20
Susanne Bram Ednersson, Martin Stenson, Mimmie Stern, Gunilla Enblad, Henrik Fagman, Herman Nilsson-Ehle, Sverker Hasselblom, Per-Ola Andersson
Diffuse large B cell lymphoma (DLBCL) patients with early relapse or refractory disease have a very poor outcome. Immunochemotherapy resistance will probably, also in the era of targeted drugs, remain the major cause of treatment failure. We used proteomic mass spectrometry to analyse the global protein expression of micro-dissected formalin-fixed paraffin-embedded tumour tissues from 97 DLBCL patients: 44 with primary refractory disease or relapse within 1 year from diagnosis (REF/REL), and 53 who were progression-free more than 5 years after diagnosis (CURED)...
May 16, 2018: British Journal of Haematology
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