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https://www.readbyqxmd.com/read/28613377/evaluation-of-genetic-diversity-among-soybean-glycine-max-genotypes-using-univariate-and-multivariate-analysis
#1
M M Oliveira, L B Sousa, M C Reis, E G Silva Junior, D B O Cardoso, O T Hamawaki, A P O Nogueira
The genetic diversity study has paramount importance in breeding programs; hence, it allows selection and choice of the parental genetic divergence, which have the agronomic traits desired by the breeder. This study aimed to characterize the genetic divergence between 24 soybean genotypes through their agronomic traits, using multivariate clustering methods to select the potential genitors for the promising hybrid combinations. Six agronomic traits evaluated were number of days to flowering and maturity, plant height at flowering and maturity, insertion height of the first pod, and yield...
May 31, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28613376/genetic-variability-of-garlic-accessions-as-revealed-by-agro-morphological-traits-evaluated-under-different-environments
#2
E S S Hoogerheide, J A Azevedo Filho, R Vencovsky, M I Zucchi, B W Zago, J B Pinheiro
The cultivated garlic (Allium sativum L.) displays a wide phenotypic diversity, which is derived from natural mutations and phenotypic plasticity, due to dependence on soil type, moisture, latitude, altitude and cultural practices, leading to a large number of cultivars. This study aimed to evaluate the genetic variability shown by 63 garlic accessions belonging to Instituto Agronômico de Campinas and the Escola Superior de Agricultura "Luiz de Queiroz" germplasm collections. We evaluated ten quantitative characters in experimental trials conducted under two localities of the State of São Paulo: Monte Alegre do Sul and Piracicaba, during the agricultural year of 2007, in a randomized blocks design with five replications...
May 31, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28612334/water-quality-assessment-with-hierarchical-cluster-analysis-based-on-mahalanobis-distance
#3
Xiangjun Du, Fengjing Shao, Shunyao Wu, Hanlin Zhang, Si Xu
Water quality assessment is crucial for assessment of marine eutrophication, prediction of harmful algal blooms, and environment protection. Previous studies have developed many numeric modeling methods and data driven approaches for water quality assessment. The cluster analysis, an approach widely used for grouping data, has also been employed. However, there are complex correlations between water quality variables, which play important roles in water quality assessment but have always been overlooked. In this paper, we analyze correlations between water quality variables and propose an alternative method for water quality assessment with hierarchical cluster analysis based on Mahalanobis distance...
July 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28589853/n-of-1-pathways-mixenrich-advancing-precision-medicine-via-single-subject-analysis-in-discovering-dynamic-changes-of-transcriptomes
#4
Qike Li, A Grant Schissler, Vincent Gardeux, Ikbel Achour, Colleen Kenost, Joanne Berghout, Haiquan Li, Hao Helen Zhang, Yves A Lussier
BACKGROUND: Transcriptome analytic tools are commonly used across patient cohorts to develop drugs and predict clinical outcomes. However, as precision medicine pursues more accurate and individualized treatment decisions, these methods are not designed to address single-patient transcriptome analyses. We previously developed and validated the N-of-1-pathways framework using two methods, Wilcoxon and Mahalanobis Distance (MD), for personal transcriptome analysis derived from a pair of samples of a single patient...
May 24, 2017: BMC Medical Genomics
https://www.readbyqxmd.com/read/28587285/study-on-an-indoor-positioning-system-for-harsh-environments-based-on-wi-fi-and-bluetooth-low-energy
#5
Gabriel de Blasio, Alexis Quesada-Arencibia, Carmelo R García, Jezabel Miriam Molina-Gil, Cándido Caballero-Gil
This paper presents a study of positioning system that provides advanced information services based on Wi-Fi and Bluetooth Low Energy (BLE) technologies. It uses Wi-Fi for rough positioning and BLE for fine positioning. It is designed for use in public transportation system stations and terminals where the conditions are "hostile" or unfavourable due to signal noise produced by the continuous movement of passengers and buses, data collection conducted in the constant presence thereof, multipath fading, non-line of sight (NLOS) conditions, the fact that part of the wireless communication infrastructure has already been deployed and positioned in a way that may not be optimal for positioning purposes, variable humidity conditions, etc...
June 6, 2017: Sensors
https://www.readbyqxmd.com/read/28584724/seed-morphometric-characteristics-of-european-species-of-elatine-elatinaceae
#6
Agnieszka Popiela, Andrzej Łysko, Bożenna Białecka, Magdalena Marta Bihun, Gábor Sramkó, Waldemar Staroń, Anetta Wieczorek, Attila Molnár V
Elatine L. contains ca. 25 small, herbaceous, annual species distributed in ephemeral waters in both hemispheres. All species are amphibious and characterized by a high degree of morphological variability. The importance of seed morphology in Elatine taxonomy has been emphasized by many authors. The degree of seed curvature and seed coat reticulation have been traditionally considered very important in recognizing individual species of this genus. Seed morphometric characteristics of 10 Elatine species, including all European native taxa, are provided on the basis of material from two or three populations of each species...
2017: PeerJ
https://www.readbyqxmd.com/read/28580000/phosphorus-over-fertilization-and-nutrient-misbalance-of-irrigated-tomato-crops-in-brazil
#7
Rodrigo H D Nowaki, Serge-Étienne Parent, Arthur B Cecílio Filho, Danilo E Rozane, Natália B Meneses, Juliana A Dos Santos da Silva, William Natale, Léon E Parent
Over the past 20 years, the use of center-pivot irrigation has increased tomato (Solanum lycopersicum L.) yields in Brazil from 42 Mg ha(-1) to more than 80 Mg ha(-1). In the absence of field trials to support fertilizer recommendations, substantial amounts of phosphorus (P) have been applied to crops. Additional P dosing has been based on an equilibrated nutrient P budget adjusted for low-P fertilizer-use efficiency in high-P fixing tropical soils. To document nutrient requirements and prevent over-fertilization, tissue samples and crop yield data can be acquired through crop surveys and fertilizer trials...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28552251/avoidance-responses-of-minke-whales-to-1-4khz-naval-sonar
#8
Petter H Kvadsheim, Stacy DeRuiter, Lise D Sivle, Jeremy Goldbogen, Rune Roland-Hansen, Patrick J O Miller, Frans-Peter A Lam, John Calambokidis, Ari Friedlaender, Fleur Visser, Peter L Tyack, Lars Kleivane, Brandon Southall
Minke whales are difficult to study and little information exists regarding their responses to anthropogenic sound. This study pools data from behavioural response studies off California and Norway. Data are derived from four tagged animals, of which one from each location was exposed to naval sonar signals. Statistical analyses were conducted using Mahalanobis distance to compare overall changes in parameters summarising dive behaviour, avoidance behaviour, and potential energetic costs of disturbance. Our quantitative analysis showed that both animals initiated avoidance behaviour, but responses were not associated with unusual dive behaviour...
May 25, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28542245/identifying-corals-displaying-aberrant-behavior-in-fiji-s-lau-archipelago
#9
Anderson B Mayfield, Chii-Shiarng Chen, Alexandra C Dempsey
Given the numerous threats against Earth's coral reefs, there is an urgent need to develop means of assessing reef coral health on a proactive timescale. Molecular biomarkers may prove useful in this endeavor because their expression should theoretically undergo changes prior to visible signs of health decline, such as the breakdown of the coral-dinoflagellate (genus Symbiodinium) endosymbiosis. Herein 13 molecular- and physiological-scale biomarkers spanning both eukaryotic compartments of the anthozoan-Symbiodinium mutualism were assessed across 70 pocilloporid coral colonies sampled from reefs of Fiji's easternmost province, Lau...
2017: PloS One
https://www.readbyqxmd.com/read/28541900/simultaneous-semi-coupled-dictionary-learning-for-matching-in-canonical-space
#10
Nilotpal Das, Devraj Mandal, Soma Biswas
Cross-modal recognition and matching with privileged information are important challenging problems in the field of computer vision. The cross-modal scenario deals with matching across different modalities and needs to take care of the large variations present across and within each modality. The privileged information scenario deals with the situation that all the information available during training may not be available during the testing stage and hence algorithms need to leverage the extra information from the training stage itself...
May 24, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28466436/three-dimensional-geometric-morphometric-analysis-reveals-ethnic-dimorphism-in-the-shape-of-the-femur
#11
Etienne Cavaignac, Ke Li, Marie Faruch, Frederic Savall, Philippe Chiron, W Huang, Norbert Telmon
BACKGROUND: Ethnic dimorphism in the distal femur has never been studied in a three-dimensional analysis focused on shape instead of size. Yet, this dimorphism has direct implications in orthopedic surgery and in anthropology. The goal of this study was to show that differences in distal femur shape related to ethnic dimorphism could be identified, visualized, and quantified using 3D geometric morphometric analysis. METHODS: CT scans of the distal femur were taken from 482 patients who were free of any bone-related pathology: 240 patients were European (E) and 242 were Asian (A)...
December 2017: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/28458360/comparison-of-dissolution-similarity-assessment-methods-for-products-with-large-variations-f2-statistics-and-model-independent-multivariate-confidence-region-procedure-for-dissolution-profiles-of-multiple-oral-products
#12
Hiroyuki Yoshida, Hiroko Shibata, Ken-Ichi Izutsu, Yukihiro Goda
The current Japanese Ministry of Health Labour and Welfare (MHLW)'s Guideline for Bioequivalence Studies of Generic Products uses averaged dissolution rates for the assessment of dissolution similarity between test and reference formulations. This study clarifies how the application of model-independent multivariate confidence region procedure (Method B), described in the European Medical Agency and U.S. Food and Drug Administration guidelines, affects similarity outcomes obtained empirically from dissolution profiles with large variations in individual dissolution rates...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28391812/an-enhancement-method-for-color-retinal-images-based-on-image-formation-model
#13
Li Xiong, Huiqi Li, Liang Xu
BACKGROUND AND OBJECTIVE: The good quality of color retinal image is essential for doctors to make a reliable diagnose in clinics. Due to major reasons like acquisition process and retinal diseases, most retinal images can show poor illuminance, blur and low contrast, further impeding the process of identifying the underlying retinal condition. METHODS: Image formation model of scattering is proposed to enhance color retinal images in this paper. Two parameters of this model, background illuminance and transmission map, are estimated based on extracted background and foreground...
May 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28381796/correlation-between-the-efficacy-of-lamotrigine-and-the-serum-lamotrigine-level-during-the-remission-phase-of-acute-bipolar-ii-depression-a-naturalistic-and-unblinded-prospective-pilot-study
#14
Akiyoshi Kikkawa, Yoshihisa Kitamura, Tetsuya Aiba, Koichi Hiraki, Toshiaki Sendo
Lamotrigine has acute antidepressant effects in patients with bipolar disorder. However, there is little information regarding appropriate serum levels of lamotrigine and the time until remission after the start of lamotrigine therapy in patients with bipolar II depression. This was a naturalistic and unblinded prospective pilot study. Twelve patients' depressive symptoms were evaluated using the Montgomery-Åsberg Depression Rating Scale (MADRS) at the start of treatment and at the time of remission, and blood samples were obtained at the time of remission...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28375379/three-dimensional-integral-imaging-and-object-detection-using-long-wave-infrared-imaging
#15
Satoru Komatsu, Adam Markman, Abhijit Mahalanobis, Kenny Chen, Bahram Javidi
We propose a passive three-dimensional (3D) imaging technique based on integral imaging using a long-wave infrared (LWIR) camera. 3D imaging can improve visualization and detection of objects in adverse environments, such as low light levels and the presence of partial occlusions, along with depth estimation by reconstructing the scene at the plane of the object. This is achieved by capturing multiple two-dimensional images, known as elemental images (EI), of a scene with each image having a unique perspective of the 3D objects...
March 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/28374500/fueguian-crania-and-the-circum-pacific-rim-variation
#16
D Turbon, C Arenas, C M Cuadras
OBJECTIVES: The Fueguians are descendants of the first settlers of America, a 'relict' isolated geographically for 10,000 years. We compared their cranial variation with other Americans, and samples from Asia and Australia to know whether the modern extinct Fueguians can be considered Paleoamericans or not. MATERIALS AND METHODS: Herein we study 176 Fuego-Patagonian skulls, the largest cranial sample to be studied, refined and well documented, using CVA, and the D(2) of Mahalanobis...
April 4, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28366027/detecting-destabilizing-wheelchair-conditions-for-maintaining-seated-posture
#17
Anna Crawford, Kiley Armstrong, Kenneth Loparo, Musa Audu, Ronald Triolo
PURPOSE: The purpose of this study was to detect and classify potentially destabilizing conditions encountered by manual wheelchair users with spinal cord injuries (SCI) to dynamically increase stability and prevent falls. METHODS: A volunteer with motor complete T11 paraplegia repeatedly propelled his manual wheelchair over level ground and simulated destabilizing conditions including sudden stops, bumps and rough terrain. Wireless inertial measurement units attached to the wheelchair frame and his sternum recorded associated accelerations and angular velocities...
April 1, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28365924/spatial-analysis-of-bovine-tuberculosis-in-the-state-of-mexico-mexico
#18
Adrian Zaragoza Bastida, Marivel Herna Ndez Tellez, Lilia Patricia Bustamante Montes, Jaime Nicola S Jaramillo Paniagua, Mari A Eugenia Jaimes Beni Tes, Germa N Eduardo Mendoza Barrera, Ninfa Rami Rez-Dura N
Bovine tuberculosis (bTB) is a chronic infectious disease that affects both domestic animals and wildlife. Veterinary epidemiology studies evaluate bTB using geographic information systems (GIS), which can characterise the spatial and temporal distribution of diseases and identify the geographic areas and animal populations at risk of contracting a disease. The present study used space‑time permutation scan statistic to identify the spatial and temporal distribution of bTB from 2005 to 2010 in the State of Mexico with the goal of creating a similarity model using Mahalanobis Distance to identify areas suitable for bTB occurrence...
March 31, 2017: Veterinaria Italiana
https://www.readbyqxmd.com/read/28363007/genetic-divergence-in-the-common-bean-phaseolus-vulgaris-l-in-the-cerrado-pantanal-ecotone
#19
F A da Silva, A M Corrêa, P E Teodoro, K V Lopes, C C G Corrêa
Evaluating genetic diversity among genotypes is important for providing parameters for the identification of superior genotypes, because the choice of parents that form segregating populations is crucial. Our objectives were to i) evaluate agronomic performance; ii) compare clustering methods; iii) ascertain the relative contributions of the variables evaluated; and iv) identify the most promising hybrids to produce superior segregating populations. The trial was conducted in 2015 at the State University of Mato Grosso do Sul, Brazil...
March 30, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28362984/multivariate-statistics-applied-to-the-reaction-of-common-bean-plants-to-parasitism-by-meloidogyne-javanica
#20
L N S Santos, P D S Cabral, G A R Neves, F R Alves, M B Teixeira, F N Cunha, N F Silva
The availability of common bean cultivars tolerant to Meloidogyne javanica is limited in Brazil. Thus, the present study aimed to evaluate the reactions of 33 common bean genotypes (23 landrace, 8 commercial, 1 susceptible standard and 1 resistant standard) to M. javanica, employing multivariate statistics to discriminate the reaction of the genotypes. The experiment was conducted in a greenhouse using a completely randomized design with seven replicates. The seeds were sown in 1-L pots containing autoclaved soil and sand in a 1:1 ratio (v:v)...
March 16, 2017: Genetics and Molecular Research: GMR
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