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https://www.readbyqxmd.com/read/27898387/a-novel-adaboost-framework-with-robust-threshold-and-structural-optimization
#1
Peng-Bo Zhang, Zhi-Xin Yang
The AdaBoost algorithm is a popular ensemble method that combines several weak learners to boost generalization performance. However, conventional AdaBoost.RT algorithms suffer from the limitation that the threshold value must be manually specified rather than chosen through a self-adaptive mechanism, which cannot guarantee a result in an optimal model for general cases. In this paper, we present a generic AdaBoost framework with robust threshold mechanism and structural optimization on regression problems...
November 24, 2016: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/27878219/financial-impact-of-nursing-professionals-staff-required-in-an-intensive-care-unit
#2
Thamiris Ricci de Araújo, Mayra Gonçalves Menegueti, Maria Auxiliadora-Martins, Valéria Castilho, Lucieli Dias Pedreschi Chaves, Ana Maria Laus
Objective: to calculate the cost of the average time of nursing care spent and required by patients in the Intensive Care Unit (ICU) and the financial expense for the right dimension of staff of nursing professionals. Method: a descriptive, quantitative research, using the case study method, developed in adult ICU patients. We used the workload index - Nursing Activities Score; the average care time spent and required and the amount of professionals required were calculated using equations and from these data, and from the salary composition of professionals and contractual monthly time values, calculated the cost of direct labor of nursing...
November 21, 2016: Revista Latino-americana de Enfermagem
https://www.readbyqxmd.com/read/27794146/influence-of-preadjusted-bracket-shape-and-positioning-reference-on-angulation-of-upper-central-incisor
#3
Francielle Topolski, Mauricio A de O Accorsi, Hugo J Trevisi, Osmar A Cuoghi, Ricardo Moresca
AIM: To verify the influence of different bracket shapes and placement references according to Andrews and MBT systems on the expression of angulation in upper central incisors (UCI). MATERIALS AND METHODS: Bracket positioning and mesiodistal dental movement simulations were performed and the angulations produced in the dental crown were evaluated, based on computed tomography scan images of 30 UCI and AutoCAD software analysis. Rectangular (Andrews) and rhomboid (MBT) brackets were placed according to the references recommended by Andrews and MBT systems - long axis of the clinical crown (LACC) and incisal edge (IE) respectively...
October 1, 2016: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/27777752/a-case-management-report-a-collaborative-perioperative-surgical-home-paradigm-and-the-reduction-of-total-joint-arthroplasty-readmissions
#4
Navid Alem, Joseph Rinehart, Brian Lee, Doug Merrill, Safa Sobhanie, Kyle Ahn, Ran Schwarzkopf, Maxime Cannesson, Zeev Kain
BACKGROUND: Efforts to mitigate costs while improving surgical care quality have received much scrutiny. This includes the challenging issue of readmission subsequent to hospital discharge. Initiatives attempting to preclude readmission after surgery require planned and unified efforts extending throughout the perioperative continuum. Patient optimization prior to discharge, enhanced disease monitoring, and seamless coordination of care between hospitals and community providers is integral to this process...
2016: Perioperative Medicine
https://www.readbyqxmd.com/read/27667732/stable-benefits-of-bilateral-over-unilateral-cochlear-implantation-after-two-years-a-randomized-controlled-trial
#5
Alice van Zon, Yvette E Smulders, Inge Stegeman, Geerte G J Ramakers, Veronique J C Kraaijenga, Simone P C Koenraads, Gijsbert A Van Zanten, Albert B Rinia, Robert J Stokroos, Rolien H Free, Johan H M Frijns, Wendy J Huinck, Emmanuel A M Mylanus, Rinze A Tange, Adriana L Smit, Hans G X M Thomeer, Vedat Topsakal, Wilko Grolman
OBJECTIVES/HYPOTHESIS: To investigate hearing capabilities and self-reported benefits of simultaneous bilateral cochlear implantation (BiCI) compared with unilateral cochlear implantation (UCI) after a 2-year follow-up and to evaluate the learning effect of cochlear implantees over time. STUDY DESIGN: Multicenter randomized controlled trial. METHODS: Thirty-eight postlingually deafened adults were included in this study and randomly allocated to either UCI or simultaneous BiCI...
September 26, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27665113/hypergraph-based-feature-selection-technique-for-medical-diagnosis
#6
Nivethitha Somu, M R Gauthama Raman, Kannan Kirthivasan, V S Shankar Sriram
The impact of internet and information systems across various domains have resulted in substantial generation of multidimensional datasets. The use of data mining and knowledge discovery techniques to extract the original information contained in the multidimensional datasets play a significant role in the exploitation of complete benefit provided by them. The presence of large number of features in the high dimensional datasets incurs high computational cost in terms of computing power and time. Hence, feature selection technique has been commonly used to build robust machine learning models to select a subset of relevant features which projects the maximal information content of the original dataset...
November 2016: Journal of Medical Systems
https://www.readbyqxmd.com/read/27651977/lessons-from-ebola-sources-of-outbreak-information-and-the-associated-impact-on-uc-irvine-and-ohio-university-college-students
#7
Thrissia Koralek, Miryha G Runnerstrom, Brandon J Brown, Chukwuemeka Uchegbu, Tania B Basta
Objectives. We examined the role of outbreak information sources through four domains: knowledge, attitudes, beliefs, and stigma related to the 2014 Ebola virus disease (EVD) outbreak. Methods. We conducted an online survey of 797 undergraduates at the University of California, Irvine (UCI) and Ohio University (OU) during the peak of the outbreak. We calculated individual scores for domains and analyzed associations to demographic variables and news sources. Results. Knowledge of EVD was low and misinformation was prevalent...
2016: PLoS Currents
https://www.readbyqxmd.com/read/27646565/ep15-11-ultrasound-first-trimester-screening-for-anomalous-umbilical-cord-insertion-uci-is-it-time-to-consider-it
#8
L Di Luzio, E Masi, L Mandia, C Castagna, M Meroni, E Ferrazzi
No abstract text is available yet for this article.
September 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27614615/lightness-chroma-and-hue-differences-on-visual-shade-matching
#9
Oscar E Pecho, María M Pérez, Razvan Ghinea, Alvaro Della Bona
OBJECTIVES: To analyze the influence of lightness, chroma and hue differences on visual shade matching performed by dental students. METHODS: 100 dental students (DS) volunteers with normal vision participated in the study. A spectroradiometer (SP) was used to measure the spectral reflectance of 4 extracted human upper central incisors (UCI 1-4) and shade tabs from Vita Classical (VC) and Vita Toothguide 3D-Master (3D) shade guides. Measurements were performed over a gray background, inside a viewing booth and under D65 illuminant (diffuse/0° geometry)...
September 7, 2016: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/27588241/an-alternative-data-filling-approach-for-prediction-of-missing-data-in-soft-sets-adfis
#10
Muhammad Sadiq Khan, Mohammed Ali Al-Garadi, Ainuddin Wahid Abdul Wahab, Tutut Herawan
Soft set theory is a mathematical approach that provides solution for dealing with uncertain data. As a standard soft set, it can be represented as a Boolean-valued information system, and hence it has been used in hundreds of useful applications. Meanwhile, these applications become worthless if the Boolean information system contains missing data due to error, security or mishandling. Few researches exist that focused on handling partially incomplete soft set and none of them has high accuracy rate in prediction performance of handling missing data...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27553238/exploiting-microbeams-for-membrane-protein-structure-determination
#11
Anna J Warren, Danny Axford, Neil G Paterson, Robin L Owen
A reproducible, and sample independent means of predictably obtaining large, well-ordered crystals has proven elusive in macromolecular crystallography. In the structure determination pipeline, crystallisation often proves to be a rate-limiting step, and the process of obtaining even small or badly ordered crystals can prove time-consuming and laborious. This is particularly true in the field of membrane protein crystallography and this is reflected in the limited number of unique membrane protein structures deposited in the protein data bank (less than 650 by June 2016 - http://blanco...
2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27516807/round-randomized-learning-vector-quantization-for-brain-tumor-imaging
#12
Siti Norul Huda Sheikh Abdullah, Farah Aqilah Bohani, Baher H Nayef, Shahnorbanun Sahran, Omar Al Akash, Rizuana Iqbal Hussain, Fuad Ismail
Brain magnetic resonance imaging (MRI) classification into normal and abnormal is a critical and challenging task. Owing to that, several medical imaging classification techniques have been devised in which Learning Vector Quantization (LVQ) is amongst the potential. The main goal of this paper is to enhance the performance of LVQ technique in order to gain higher accuracy detection for brain tumor in MRIs. The classical way of selecting the winner code vector in LVQ is to measure the distance between the input vector and the codebook vectors using Euclidean distance function...
2016: Computational and Mathematical Methods in Medicine
https://www.readbyqxmd.com/read/27508839/-op-7c-07-diastolic-left-ventricular-function-in-relation-to-collagen-specific-urinary-and-serum-collagen-biomarkers-in-a-general-population
#13
Z Zhang, S Ravassa, W Y Yang, T Petit, Z Petra, B Lopez, F F Wei, C Pontillo, L Thijs, L Jacobs, A Gonzalez, T Koeck, D Christian, J U Voigt, P Verhamme, T Kuznetsova, J Diez, H Mischak, J A Staessen
OBJECTIVE: Moving from multidimensional urinary proteomic markers to single urinary collagen fragments and linking these fragments to serum biomarkers of myocardial collagen turnover may generate new insights in the pathophysiology of diastolic LV function. DESIGN AND METHOD: In 782 randomly recruited Flemish (51.3% women; 50.5 years), we assessed diastolic LV function by echocardiography, sequenced urinary collagen I (uCI) and III (uCIII) fragments, and determined serum markers of collagen I synthesis (PICP, carboxyterminal propeptide of procollagen) and breakdown (CITP, carboxyterminal telopeptide) and the tissue inhibitor of matrix metalloproteinase type 1 (TIMP 1)...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27494992/timing-of-obstetrical-assistance-affects-peripartal-cardiac-autonomic-function-and-early-maternal-behavior-of-dairy-cows
#14
Levente Kovács, Fruzsina Luca Kézér, Ferenc Ruff, Ottó Szenci
Peripartal autonomic nervous system function and early maternal behavior were investigated in 79 multiparous Holstein-Friesian cows. Animals were allocated into four groups based on the technology of calving management: 1) unassisted calving in a group pen (UCG; N=19), 2) unassisted calving in an individual pen (UCI; N=21), 3) assisted calving with appropriately timed obstetrical assistance (ACA; N=20), and 4) assisted calving with premature obstetrical assistance (ACP; N=19). Heart rate, the high frequency (HF) component of heart rate variability (HRV) as a measure of vagal activity and the ratio between the low frequency (LF) and HF components (LF/HF ratio) as a parameter of sympathetic nervous system activity were calculated...
October 15, 2016: Physiology & Behavior
https://www.readbyqxmd.com/read/27476525/short-term-performance-peaking-in-an-elite-cross-country-mountain-biker
#15
Bent R Rønnestad, Joar Hansen, Geir Vegge, Iñigo Mujika
Endurance athletes usually achieve performance peaks with 2-4 weeks of overload training followed by 1-3weeks of tapering. With a tight competition schedule, this may not be appropriate. This case investigates the effect of a 7-day overload period including daily high-intensity aerobic training followed by a 5-day step taper between two competitions in an elite cross-country mountain biker. Pre-test peak oxygen consumption was 89 ml·kg(-1)·min(-1), peak aerobic power 6.8 W·kg(-1), power output at 2 mmol·L(-1) blood lactate concentration 3...
August 1, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27444562/random-bits-forest-a-strong-classifier-regressor-for-big-data
#16
Yi Wang, Yi Li, Weilin Pu, Kathryn Wen, Yin Yao Shugart, Momiao Xiong, Li Jin
Efficiency, memory consumption, and robustness are common problems with many popular methods for data analysis. As a solution, we present Random Bits Forest (RBF), a classification and regression algorithm that integrates neural networks (for depth), boosting (for width), and random forests (for prediction accuracy). Through a gradient boosting scheme, it first generates and selects ~10,000 small, 3-layer random neural networks. These networks are then fed into a modified random forest algorithm to obtain predictions...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27394943/effect-of-calving-process-on-the-outcomes-of-delivery-and-postpartum-health-of-dairy-cows-with-unassisted-and-assisted-calvings
#17
L Kovács, F L Kézér, O Szenci
Welfare aspects of obstetrical assistance were studied in multiparous Holstein-Friesian cows (n=176) with (1) unassisted calving in an individual pen (UCIP; n=42), (2) unassisted calving in a group pen (UCG; n=48), (3) assisted calving with appropriately timed obstetrical assistance (ACAP; n=50), and (4) assisted calving with inappropriately timed (premature) obstetrical assistance (ACIN; n=36). Duration of the stages of calving, the prevalence and the degree of dystocia, stillbirth ratio, newborn calf vitality, and the occurrence of postpartum health problems (i...
September 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27363067/inverted-papilloma-of-the-bladder-coexisting-with-urothelial-carcinoma-a-case-report
#18
Ricardo Santana Veiga, João Cassis, Pedro Oliveira, António Lopez-Beltran
BACKGROUND: Inverted papilloma (IP) is an unusual benign neoplasm, most commonly found in the bladder. Cases of malignant transformation have been reported in the past, although most of them are now considered to be urothelial carcinomas with an inverted growth pattern. CASE: A 54-year-old man was diagnosed with urothelial carcinoma in situ (UCIS), high-grade papillary urothelial carcinoma (HGPUC), and IP by transurethral resection specimen of the bladder. The urothelial carcinoma cells were seen colonizing the inverted papilloma...
February 2016: Analytical and Quantitative Cytopathology and Histopathology
https://www.readbyqxmd.com/read/27334750/clinical-risk-assessment-of-patients-with-chronic-kidney-disease-by-using-clinical-data-and-multivariate-models
#19
Zewei Chen, Xin Zhang, Zhuoyong Zhang
PURPOSE: Timely risk assessment of chronic kidney disease (CKD) and proper community-based CKD monitoring are important to prevent patients with potential risk from further kidney injuries. As many symptoms are associated with the progressive development of CKD, evaluating risk of CKD through a set of clinical data of symptoms coupled with multivariate models can be considered as an available method for prevention of CKD and would be useful for community-based CKD monitoring. METHODS: Three common used multivariate models, i...
June 22, 2016: International Urology and Nephrology
https://www.readbyqxmd.com/read/27307647/what-time-is-it-deep-learning-approaches-for-circadian-rhythms
#20
Forest Agostinelli, Nicholas Ceglia, Babak Shahbaba, Paolo Sassone-Corsi, Pierre Baldi
MOTIVATION: Circadian rhythms date back to the origins of life, are found in virtually every species and every cell, and play fundamental roles in functions ranging from metabolism to cognition. Modern high-throughput technologies allow the measurement of concentrations of transcripts, metabolites and other species along the circadian cycle creating novel computational challenges and opportunities, including the problems of inferring whether a given species oscillate in circadian fashion or not, and inferring the time at which a set of measurements was taken...
June 15, 2016: Bioinformatics
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