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Taylor Peters, Cecelia Pompeii-Wolfe
Preterm infants are at high nutrition risk during neonatal intensive care and well after discharge. Nutrition care should be individualized and provided by a multidisciplinary team including a dietitian. Breast milk, the gold standard for feeding, may not meet the increased needs of preterm infants and may require fortification or supplementation. Decisions regarding formula choice and calorie concentration can also be challenging and require individualization based on growth, intake, and individual need. Developmental milestones should be considered during the initation of complementary food...
April 1, 2018: Pediatric Annals
Razvan Ghinea, Luis Javier Herrera, María M Pérez, Ana M Ionescu, Rade D Paravina
OBJECTIVE: To design colorimetric and spectral models of gingival shade guides that adequately represent the color of human gingiva. MATERIALS AND METHODS: A previously compiled database on the spectral reflectance of healthy keratinized gingiva was used for optimization. Coverage Error (CE) and Maximal Error (ME) were optimized using CIELAB and CIEDE2000 color difference formulas. A two-phase process included an FCM algorithm and a nonlinear optimization. A t test was used to compare the performance of the different numbers of clusters/tabs in gingival shade guide models (α = ...
March 2018: Journal of Esthetic and Restorative Dentistry
Bohuslav Drahoš, Zdeněk Trávníček
A cross-bridged cyclam derivative containing two 2-pyridylmethyl pendant arms (L = 4,11-bis((pyridin-2-yl)methyl)-1,4,8,11-tetraaza-bicyclo[6.6.2]hexadecane) was synthesized by dialkylation of the cross-bridged cyclam with 2-chloromethylpyridine. A series of Fe(ii) complexes with L and different counter-anions of the formulas [Fe(L)][FeCl4]·H2O (1·H2O), [Fe(L)]Cl2·4H2O (2·4H2O), [Fe(L)](BF4)2·0.5CH3CN (3·0.5CH3CN) and [Fe(L)](BPh4)2·CH3OH (4·CH3OH) was prepared and thoroughly characterized. In all the cases, the [Fe(L)]2+ cation adopts a cis-V configuration with a distorted octahedral geometry, and with the FeN6 donor set...
April 18, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
Kai Huang, Zhongjun Li, Jing Lin, Gang Han, Peng Huang
Two-dimensional transition metal carbides and nitrides known as MXenes, with a general formula of Mn+1Xn (n = 1-3), integrate the advantages of metallic conductive transition metals with large groups of carbides, nitrides, or carbonitrides. They have led to a burgeoning research interest in biomedical applications due to their ultrathin structure and fascinating physiochemical (electronic, optical, magnetic, etc.) properties. In this review, we summarize recent advances in biomedical applications for MXenes...
April 18, 2018: Chemical Society Reviews
J Piot, A Hébrard, M Durand, J F Payen, P Albaladejo
Following cardiac surgery, hyperlactatemia due to anaerobic metabolism is associated with an increase in both morbidity and mortality. We previously found that an elevated respiratory quotient (RQ) predicts anaerobic metabolism. In the present study we aimed to demonstrate that it is also associated with poor outcome following cardiac surgery. This single institution, prospective, observational study includes all those patients that were consecutively admitted to the intensive care unit (ICU) after cardiac surgery with cardiopulmonary bypass, that had also been monitored using pulmonary artery catheter...
April 17, 2018: Journal of Clinical Monitoring and Computing
Livio Racané, Lucija Ptiček, Mirela Sedić, Petra Grbčić, Sandra Kraljević Pavelić, Branimir Bertoša, Irena Sović, Grace Karminski-Zamola
Herein, we describe the synthesis of twenty-one novel water-soluble monocationic 2-aryl/heteroaryl-substituted 6-(2-imidazolinyl)benzothiazole mesylates 3a-3u and present the results of their anti-proliferative assays. Efficient syntheses were achieved by three complementary simple two-step synthetic protocols based on the condensation reaction of aryl/heteroaryl carbaldehydes or carboxylic acid. We developed an eco-friendly synthetic protocol using glycerol as green solvent, particularly appropriate for the condensation of thermally and acid-sensitive heterocycles such as furan, benzofuran, pyrrole, and indole...
April 17, 2018: Molecular Diversity
Corin F Otesteanu, Valery Vishnevsky, Orcun Goksel
PURPOSE: Success of ablation treatment depends on the accurate placement of the target ablation focus and the complete destruction of the pathological tissue. Thus, monitoring the formation, location, and size of the ablated lesion is essential. As ablated tissue gets stiffer, an option for ablation monitoring is ultrasound elastography, for imaging the tissue mechanical properties. Reconstruction of elasticity distribution can be achieved by solving an inverse problem from observed displacements, based on a deformable tissue model, commonly discretized by the finite element method (FEM)...
April 17, 2018: International Journal of Computer Assisted Radiology and Surgery
Maria-Gabriela Alexandru, Diana Visinescu, Sergiu Shova, Willian X C Oliveira, Francesc Lloret, Miguel Julve
A new series of {FeIII2LnIII2} heterobimetallic squares of general formula [FeIII{HB(pz)3}(CN)(μ-CN)2Ln(pyim)x(NO3)2(H2O)y]2·zH2O [Ln = La (1), Gd (2), Tb (3) and Dy (4); {HB(pz)3}- = hydrotris(pyrazolyl)borate and pyim = 2-(1H-imidazol-2-yl)pyridine; x = 2, y = 0 (1), x = y = 1 (2-4) and z = 10 (1), 6 (2), 2.76 (3), 4 (4)] were synthesized by reacting the low-spin [FeIII{HB(pz)3}(CN)3]- complex anion with the preformed [LnIII(pyim)x(NO3)2(H2O)y]+ complex cation [formed in situ by mixing the lanthanide(iii) salt and the pyim ligand]...
April 18, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
Kai Xu, David Hutchins, Kunshan Gao
Background: The globally abundant coccolithophore, Emiliania huxleyi , plays an important ecological role in oceanic carbon biogeochemistry by forming a cellular covering of plate-like CaCO3 crystals (coccoliths) and fixing CO2 . It is unknown how the cells arrange different-sized coccoliths to maintain full coverage, as the cell surface area of the cell changes during daily cycle. Methods: We used Euler's polyhedron formula and CaGe simulation software, validated with the geometries of coccoliths, to analyze and simulate the coccolith topology of the coccosphere and to explore the arrangement mechanisms...
2018: PeerJ
Deena Kheyami, Ahmed Jaradat, Tareq Al-Shibani, Fuad A Ali
Objectives: The current study aimed to carry out a post-validation item analysis of multiple choice questions (MCQs) in medical examinations in order to evaluate correlations between item difficulty, item discrimination and distraction effectiveness so as to determine whether questions should be included, modified or discarded. In addition, the optimal number of options per MCQ was analysed. Methods: This cross-sectional study was performed in the Department of Paediatrics, Arabian Gulf University, Manama, Bahrain...
February 2018: Sultan Qaboos University Medical Journal
Simon Bambang Widjanarko, Qory Amalia, Mochamad Bagus Hermanto, Ahmad Zaki Mubarok
In the present study, the effect of two independent variables, yellow konjac flour-κ-carrageenan (KFC) mixed gels and red koji rice (RKR) extracts for the development of restructured meat product, was investigated using central composite design of response surface methodology (RSM). The assessed physical characteristics were hardness, water holding capacity (WHC), and color (° hue ) of the restructured meat products. The second order regression models with high R2 value were significantly fitted to predict the changes in hardness, WHC and color...
May 2018: Journal of Food Science and Technology
Majed M AbuKhader
AIM: To assess the suitability of iron content and the nutritional benefits of selected fortified food products marketed for 4-8 year old children in Oman. METHODS: Forty-five fortified foods, which are available in Omani markets, were classified into four groups based on food type and composition: ready-to-eat (RTE) breakfast cereals (two groups), malted milk drinks and milk powder formulas. The nutrition panel displayed on the products' outer package was used as a source of content values for iron and other nutrients...
January 1, 2018: Nutrition and Health
Jean-Marie Oberson, Esther Campos-Giménez, Johann Rivière, Frédéric Martin
In the present manuscript, we describe a fully optimized and validated method suitable to analyse nine compounds (retinyl acetate, retinyl palmitate, retinol, α-tocopherol, α-tocopheryl acetate, cholecalciferol, ergocalciferol, phylloquinone, menaquinone-4) representing the major contributors to the fat-soluble vitamin activity of selected food products (infant formulas, adult nutritionals, infant cereals and mixed meals). Sample preparation involves direct solvent extraction using enzyme-assisted matrix disintegration and methanolic protein precipitation...
April 10, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Haidy Abbas, Hanan Refai, Nesrine El Sayed
The objective of the study was to target clonazepam (CZ) to the brain through the intranasal olfactory mucosa using nanolipid carriers loaded with superparamagnetic iron oxide nanoparticles (SPION) to allow nanocarrier guidance and retention with an external magnetic field. For improved delivery the nanolipid carriers were incorporated in a thermosensitive mucoadhesive in situ gel. Different nanolipid carriers including solid lipid nanoparticles (SLN) and nanostructured lipid carriers (NLC) were prepared and characterized with respect to particle size, zeta potential, entrapment efficiency and in vitro release...
April 14, 2018: Journal of Pharmaceutical Sciences
Dylan Errulat, Bulat Gabidullin, Eva Hemmer, Muralee Murugesu
Two homodinuclear and one heterodinuclear lanthanide (Ln)-based complexes of the general formula [Ln2(bpm)(tfaa)6] (Ln = Eu (1), Tb (2), Eu-Tb (3), bpm = 2,2'-bipyrimidine, tfaa- = 1,1,1-trifluoroacetylacetonate) were synthesized and characterized via single-crystal photoluminescence (PL) spectroscopy and hyperspectral imaging. Complexes 1 and 2 crystallize in two polymorphic structures, while three polymorphs were isolated for 3, namely having needle-, plate-, and block-like morphologies. Single-crystal PL spectroscopy and imaging on Eu3+-containing 1 and 3 revealed polymorph-dependent J-splitting of the hypersensitive 5D0 -> 7F2 Eu3+ transition as well as electric-to-magnetic dipole emission intensity ratios...
April 17, 2018: Chemistry: a European Journal
Javad Heshmati, Mahdi Sepidarkish, Farzad Shidfar, Fatemeh Shokri, Samira Vesali, Maryam Akbari, Reza Omani-Samani
BACKGROUND: Numerous studies have reported the associations between the type of feeding during infancy and subsequent chronic diseases. OBJECTIVE: The objective of this systematic review is to synthesize the available literature concerning the effect of breastfeeding in infancy on physical and cardiorespiratory fitness in children and adolescents. MATERIALS AND METHODS: We performed a comprehensive search of medical bibliographic databases to identify observational studies reporting the association between breastfeeding and cardiorespiratory or physical fitness...
April 17, 2018: Breastfeeding Medicine: the Official Journal of the Academy of Breastfeeding Medicine
Karolina Maria Maliszewska, Mariola Bidzan, Małgorzata Świątkowska-Freund, Krzysztof Preis
OBJECTIVES: The purpose of this study was to explore the socio-demographic and psychological factors connected with exclusive breastfeeding after 6 months postpartum. MATERIAL AND METHODS: A total of 251 women filled in questionnaires in the first week postpartum, then again after 3 and 6 months. The questionnaires included socio-demographic and medical questions, as well as psychological tools: the NEO-FFI Personality Inventory, the Berlin Social Support Scales (BSSS), and the Edinburgh Postnatal Depression Scale (EPDS)...
2018: Ginekologia Polska
Kamal Gholipour, Jafar Sadegh Tabrizi, Solmaz Azimzadeh, Samad Ghafari, Shabnam Iezadi
OBJECTIVE: Service quality (SQ) generally refers to the nonclinical aspects of health services and primarily focuses on the relationship between the care provider and the customers, and the environment in which care services are delivered. The aim of this study was to assess the SQ provided for myocardial infarction (MI) from the patients' perspective. METHODS: A cross-sectional study was conducted with 164 patients with MI at the Tabriz Shahid Madani cardiology clinic...
April 2018: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
Ming Zhou, Qi Tang, Lixin Lang, Jun Xing, Kay Tatsuoka
In clinical research and development, interim monitoring is critical for better decision-making and minimizing the risk of exposing patients to possible ineffective therapies. For interim futility or efficacy monitoring, predictive probability methods are widely adopted in practice. Those methods have been well studied for univariate variables. However, for longitudinal studies, predictive probability methods using univariate information from only completers may not be most efficient, and data from on-going subjects can be utilized to improve efficiency...
April 17, 2018: Statistics in Medicine
Thiago A de Assis, Fernando F Dall'Agnol
Numerical simulations are important when assessing the many characteristics of field emission related phenomena. In small simulation domains, the electrostatic effect from the boundaries is known to influence the calculated apex field enhancement factor (FEF) of the emitter, but no established dependence has been reported at present. In this work, we report the dependence of the lateral size, L, and the height, H, of the simulation domain on the apex-FEF of a single conducting ellipsoidal emitter. Firstly, we analyze the error, ε, in the calculation of the apex-FEF as a function of H and L...
April 17, 2018: Journal of Physics. Condensed Matter: An Institute of Physics Journal
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