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https://www.readbyqxmd.com/read/28531129/rapid-and-cost-effective-quantification-of-glucosinolates-and-total-phenolic-content-in-rocket-leaves-by-visible-near-infrared-spectroscopy
#1
Eva María Toledo-Martín, Rafael Font, Sara Obregón-Cano, Antonio De Haro-Bailón, Myriam Villatoro-Pulido, Mercedes Del Río-Celestino
The potential of visible-near infrared spectroscopy to predict glucosinolates and total phenolic content in rocket (Eruca vesicaria) leaves has been evaluated. Accessions of the E. vesicaria species were scanned by NIRS as ground leaf, and their reference values regressed against different spectral transformations by modified partial least squares (MPLS) regression. The coefficients of determination in the external validation (R²VAL) for the different quality components analyzed in rocket ranged from 0.59 to 0...
May 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28490860/choroidal-structure-determined-by-binarizing-optical-coherence-tomography-images-in-eyes-with-reticular-pseudodrusen
#2
Naonori Masuda, Masashi Kojima, Mariko Yamashita, Tomo Nishi, Nahoko Ogata
PURPOSE: To compare the choroidal structure beneath the macular area in eyes with reticular pseudodrusen (RPD) and age-matched controls. METHODS: This study was performed at Nara Medical University Hospital, Japan. Twenty eyes of 14 patients (82.3±4.2 years, mean ± standard deviation) with RPD and 35 eyes of 20 age-matched controls (81.5±6.0 years) were studied. The choroidal structure was determined by binarizing the images obtained by enhanced depth imaging optical coherence tomography in all patients and controls...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28490075/development-of-a-near-infrared-spectroscopy-method-nirs-for-fast-analysis-of-total-indolic-aliphatic-and-individual-glucosinolates-in-new-bred-open-pollinating-genotypes-of-broccoli-brassica-oleracea-convar-botrytis-var-italica
#3
Samira Sahamishirazi, Sabine Zikeli, Michael Fleck, Wilhelm Claupein, Simone Graeff-Hoenninger
This study describes the development of near-infrared spectroscopy (NIRS) calibration to determine individual and total glucosinolates (GSLs) content of 12 new-bred open-pollinating genotypes of broccoli (Brassica oleracea convar. botrytis var. italica). Six individual GSLs were identified using high-performance-liquid chromatography (HPLC). The NIRS calibration was established based on modified partial least squares regression with reference values of HPLC. The calibration was analyzed using coefficient of determination in prediction (R(2)) and ratio of preference of determination (RPD)...
October 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28488325/models-to-improve-the-non-destructive-analysis-of-persimmon-fruit-properties-by-vis-nir-spectrometry
#4
Giuseppe Altieri, Francesco Genovese, Antonella Tauriello, Giovanni Carlo Di Renzo
BACKGROUND: Visible-near infrared spectrometry is a technique suitable to assess chemical and physiological properties of fruit. Some models of calibration/prediction have been tested in order to assess the feasibility of a visible-near infrared sensor in order to monitor persimmon fruits colour, firmness, soluble solids, titratable acidity and soluble tannins. RESULTS: Five regression models were investigated: principal component, partial least-squares, stepwise, support vector machines and ensembles of trees...
May 8, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28462759/reduced-protein-diets-increase-intramuscular-fat-of-psoas-major-a-red-muscle-in-lean-and-fatty-pig-genotypes
#5
M S Madeira, P A Lopes, P Costa, D Coelho, C M Alfaia, J A M Prates
The present study aims to assess the effects of pig's genotype (lean v. fatty) and dietary protein level (control v. reduced) on intramuscular fat (IMF) content, fatty acid composition and fibre profile of psoas major, a representative red muscle in pig's carcass scarcely studied relative to white longissimus lumborum. The experiment was conducted on 40 intact male pigs (20 Alentejana purebred and 20 Large White×Landrace×Pietrain crossbred) from 60 to 93 kg of live weight. Pigs were divided and allocated to four dietary groups: control protein diet equilibrated for lysine (17...
May 2, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28453544/predicting-herbivore-faecal-nitrogen-using-a-multispecies-near-infrared-reflectance-spectroscopy-calibration
#6
Miriam Villamuelas, Emmanuel Serrano, Johan Espunyes, Néstor Fernández, Jorge R López-Olvera, Mathieu Garel, João Santos, María Ángeles Parra-Aguado, Maurizio Ramanzin, Xavier Fernández-Aguilar, Andreu Colom-Cadena, Ignasi Marco, Santiago Lavín, Jordi Bartolomé, Elena Albanell
Optimal management of free-ranging herbivores requires the accurate assessment of an animal's nutritional status. For this purpose 'near-infrared reflectance spectroscopy' (NIRS) is very useful, especially when nutritional assessment is done through faecal indicators such as faecal nitrogen (FN). In order to perform an NIRS calibration, the default protocol recommends starting by generating an initial equation based on at least 50-75 samples from the given species. Although this protocol optimises prediction accuracy, it limits the use of NIRS with rare or endangered species where sample sizes are often small...
2017: PloS One
https://www.readbyqxmd.com/read/28452227/prediction-of-lignin-content-in-different-parts-of-sugarcane-using-near-infrared-spectroscopy-nir-ordered-predictors-selection-ops-and-partial-least-squares-pls
#7
Camila Assis, Rachel S Ramos, Lidiane A Silva, Volmir Kist, Márcio H P Barbosa, Reinaldo F Teófilo
The building of multivariate calibration models using near-infrared spectroscopy (NIR) and partial least squares (PLS) to estimate the lignin content in different parts of sugarcane genotypes is presented. Laboratory analyses were performed to determine the lignin content using the Klason method. The independent variables were obtained from different materials: dry bagasse, bagasse-with-juice, leaf, and stalk. The NIR spectra in the range of 10 000-4000 cm(-1) were obtained directly for each material. The models were built using PLS regression, and different algorithms for variable selection were tested and compared: iPLS, biPLS, genetic algorithm (GA), and the ordered predictors selection method (OPS)...
January 1, 2017: Applied Spectroscopy
https://www.readbyqxmd.com/read/28450227/spatial-phylogenetics-of-the-vascular-flora-of-chile
#8
Rosa A Scherson, Andrew H Thornhill, Rafael Urbina-Casanova, William A Freyman, Patricio A Pliscoff, Brent D Mishler
Current geographic patterns of biodiversity are a consequence of the evolutionary history of the lineages that comprise them. This study was aimed at exploring how evolutionary features of the vascular flora of Chile are distributed across the landscape. Using a phylogeny at the genus level for 87% of the Chilean vascular flora, and a geographic database of sample localities, we calculated phylogenetic diversity (PD), phylogenetic endemism (PE), relative PD (RPD), and relative PE (RPE). Categorical Analyses of Neo- and Paleo-Endemism (CANAPE) were also performed, using a spatial randomization to assess statistical significance...
April 24, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28415443/3-month-parenteral-plga-microsphere-formulations-of-risperidone-fabrication-characterization-and-neuropharmacological-assessments
#9
Sundeep Chaurasia, Kuchukuntla Mounika, Vasudha Bakshi, Vure Prasad
The study aims at formulation and characterization of three months parenteral risperidone loaded polymeric microspheres (p-RLPMs) as a sustained delivery system and established their in vitro and in vivo assessments. The p-RLPMs formulations were prepared by solvent extraction and diffusion method. The optimized p-RLPMs (batch RPLGA-1) formulation demonstrated favorable different physicochemical properties such as mean particle size (104±5.34μm), percent porosity (44.56±3.11%) and percent drug loading (38...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28411141/formulation-of-carbapenems-loaded-gold-nanoparticles-to-combat-multi-antibiotic-bacterial-resistance-in-vitro-antibacterial-study
#10
Mohamed A Shaker, Mona I Shaaban
Despite the fact that carbapenems (powerful β-lactams antibiotics) were able to fight serious infectious diseases, nowadays the spread of carbapenems-resistant bacteria is considered the main challenge in antibacterial therapy. In this study, we focused on evaluating the surface conjugation of carbapenems (imipenem and meropenem) with gold nanoparticles as a delivering strategy to specifically and safely maximize their therapeutic efficacy while destroying the developing resistance of the pathogens. Different particle size formulae (35, 70 and 200nm) were prepared by citrate reduction method...
April 11, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28409368/comparison-of-orvil%C3%A2-and-rpd-in-laparoscopic-total-gastrectomy-for-gastric-cancer
#11
Xi Li, Liang Hong, Dan Ding, Yaping Liu, Gengming Niu, Liang Li, Xin Wang, Xiaomei Li, Chongwei Ke
BACKGROUND: Laparoscopic total gastrectomy (LTG) is frequently performed for treating patients with gastric cancer; however, the absence of anastomotic techniques with greater superiority has impaired its popularization. We have compared two types of anastomotic techniques with regard to technical perspectives and clinical outcomes. METHODS: We reviewed 43 patients with gastric cancer who underwent LTG. Two types of anastomotic techniques have been applied after LTG-the trans-orally inserted anvil (OrVil™) and the reverse puncture device (RPD)...
April 13, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28406127/masticatory-efficiency-of-shortened-dental-arch-subjects-with-removable-partial-denture-a-comparative-study
#12
J O Omo, M A Sede, T A Esan
OBJECTIVE: The objective of this study was to compare the masticatory efficiency in subjects with shortened dental arch (SDA) before and after restoration with removable partial denture (RPD). MATERIALS AND METHODS: This was a prospective study carried out on 36 consecutive patients. The subjects were asked to chew 5 g of a measured portion of fresh raw carrot for 20 specified numbers of strokes. The raw carrot was recovered into a cup and strained through a standard mesh sieve of 5 mm by 1 mm, it was air dried for 30 min and weighed with FEM digital series weighing scale...
April 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28394833/optimizing-half-squat-post-activation-potential-load-in-squat-jump-training-for-eliciting-relative-maximal-power-in-ski-jumpers
#13
A Gołaś, M Wilk, P Statsny, A Maszczyk, K Pajerska, A Zajac
Training load manipulation in a single workout session can increase or decrease training effectiveness in terms of athlete's strength or power gains. In ski jumping the complex training that elicits maximal power gains may take advantage of the post activation potentiation mechanism (PAP). The aim of research was to evaluate the changes in rate of force development (RFD), rate of power development (RPD) and jump height during a complex training session consisted of the barbell half squat (Sq) as an conditioning exercise with loads ranged between 60-100% of 1 repetition maximum (1RM), followed by a body weight squat jump (SqJ) as a performance task...
April 7, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28389024/accuracy-of-a-digital-removable-partial-denture-fabricated-by-casting-a-rapid-prototyped-pattern-a-clinical-study
#14
Jong-Won Lee, Ji-Man Park, Eun-Jin Park, Seong-Joo Heo, Jai-Young Koak, Seong-Kyun Kim
STATEMENT OF PROBLEM: A limited number of clinical studies have evaluated the accuracy of a digitally generated removable partial denture (RPD) intraorally. An analysis of the accuracy of the digital RPD on a larger number of participants was needed. PURPOSE: The purpose of this clinical study was to analyze the accuracy of digital RPDs by using the replica technique. MATERIAL AND METHODS: The fit accuracy of digital RPDs fabricated using electronic surveying was analyzed by fabricating replicas with silicone registration material and measuring with a stereomicroscope and image program...
April 4, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28388704/quantitative-analysis-of-the-ellipsoid-zone-intensity-in-phenotypic-variations-of-intermediate-age-related-macular-degeneration
#15
Thomas J Gin, Zhichao Wu, Sky K H Chew, Robyn H Guymer, Chi D Luu
Purpose: Reduction of the ellipsoid zone (EZ) intensity has been reported in eyes with age-related macular degeneration (AMD). This study determined whether overall EZ intensity, in retinal locations undisturbed by pathologic features, is associated with the presence of clinical features, which are known important phenotypic risk factors for disease progression, large drusen, reticular pseudodrusen (RPD), and pigmentary abnormalities. Methods: A horizontal B-scan through the foveola on spectral-domain optical coherence tomography (SD-OCT) was performed in both eyes of 75 participants with bilateral intermediate AMD and 10 age-similar control participants...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28386108/structural-insight-into-the-specific-dna-template-binding-to-dnag-primase-in-bacteria
#16
Yingqin Zhou, Hao Luo, Zhongchuan Liu, Mu Yang, Xiaoyun Pang, Fei Sun, Ganggang Wang
Bacterial primase initiates the repeated synthesis of short RNA primers that are extended by DNA polymerase to synthesize Okazaki fragments on the lagging strand at replication forks. It remains unclear how the enzyme recognizes specific initiation sites. In this study, the DnaG primase from Bacillus subtilis (BsuDnaG) was characterized and the crystal structure of the RNA polymerase domain (RPD) was determined. Structural comparisons revealed that the tethered zinc binding domain plays an important role in the interactions between primase and specific template sequence...
April 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28365602/benefits-of-case-based-versus-traditional-lecture-based-instruction-in-a-preclinical-removable-prosthodontics-course
#17
COMPARATIVE STUDY
David B Samuelson, Kimon Divaris, Ingeborg J De Kok
This study compared the acceptability and relative effectiveness of case-based learning (CBL) versus traditional lecture-based (LB) instruction in a preclinical removable prosthodontics course in the University of North Carolina at Chapel Hill School of Dentistry DDS curriculum. The entire second-year class (N=82) comprised this crossover study's sample. Assessments of baseline comprehension and confidence in removable partial denture (RPD) treatment planning were conducted at the beginning of the course. Near the end of the course, half of the class received CBL and LB instruction in an RPD module in alternating sequence, with students serving as their own control group...
April 2017: Journal of Dental Education
https://www.readbyqxmd.com/read/28343666/removable-partial-dentures-the-clinical-need-for-innovation
#18
REVIEW
Stephen D Campbell, Lyndon Cooper, Helen Craddock, T Paul Hyde, Brian Nattress, Sue H Pavitt, David W Seymour
STATEMENT OF PROBLEM: The number of partially dentate adults is increasing, and many patients will require replacement of missing teeth. Although current treatment options also include fixed partial dentures and implants, removable partial dentures (RPDs) can have advantages and are widely used in clinical practice. However, a significant need exists to advance materials and fabrication technologies because of the unwanted health consequences associated with current RPDs. PURPOSE: The purpose of this review was to assess the current state of and future need for prosthetics such as RPDs for patients with partial edentulism, highlight areas of weakness, and outline possible solutions to issues that affect patient satisfaction and the use of RPDs...
March 23, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28340731/prediction-of-organic-carbon-and-total-nitrogen-contents-in-organic-wastes-and-their-composts-by-infrared-spectroscopy-and-partial-least-square-regression
#19
M Sisouane, M M Cascant, S Tahiri, S Garrigues, M El Krati, G El Kadiri Boutchich, M L Cervera, M de la Guardia
Middle and near infrared (MIR and NIR) were employed to determine organic carbon (OC) and total nitrogen (TN) in different soil organic amendments including wastes, composts and mixtures of composts and organic wastes. Prediction models based on partial least squares (PLS) regression from the spectra of untreated samples were built. Different spectra preprocessing strategies were adopted and the best number of latent variable was evaluated using leave-one-out cross-validation. Attenuated total reflectance (PLS-ATR-MIR) and diffuse reflectance (PLS-DR-NIR) models were built and evaluated from root mean square error of cross validation and prediction (RMSECV and RMSEP), coefficients of determination for prediction (R(2) pred) and residual predictive deviation (RPD)...
May 15, 2017: Talanta
https://www.readbyqxmd.com/read/28317243/implant-supported-mandibular-removable-partial-dentures-functional-clinical-and-radiographical-parameters-in-relation-to-implant-position
#20
Charlotte Jensen, Caroline M Speksnijder, Gerry M Raghoebar, Wouter Kerdijk, Henny J A Meijer, Marco S Cune
BACKGROUND: Patients with a Kennedy class I situation often encounter problems with their removable partial denture (RPD). PURPOSE: To assess the functional benefits of implant support to RPDs, the clinical performance of the implants and teeth and to determine the most favorable implant position: the premolar (PM) or molar (M) region. MATERIALS AND METHODS: Thirty subjects received 2 PM and 2 M implants. A new RPD was made. Implant support was provided 3 months later...
March 20, 2017: Clinical Implant Dentistry and related Research
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