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检索条件"主题词=Descriptive analytics"

共 86 条记录，以下是41-50 订阅

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Effect of In Vitro Aging of Resin Microinfiltrant Restoration Effect on Shear Bond Strength of Orthodontic Bracket Adhesive

Effect of In Vitro Aging of Resin Microinfiltrant Restoratio...

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作者： DeVeaux, S. E UNIFORMED SERVICES UNIV OF THE HEALTH SCIENCES BETHESDA MD Uniformed Services University of the Health Sciences Bethesda MD

Objective: To determine the impact of resin infiltration subjected to in vitro conditions on the shear bond strength (SBS) and adhesive remnant index (ARI) scores of orthodontic bracket adhesive. Materials and Methods: One hundred and twenty bovine incisors were randomly divided into 4equal groups: control group (Group I), demineralized control group (Group II), ICON control group (Group III), and aged-ICON experimental group (Group IV). Artificial white spot lesions were created in groups II, III, and IV. Micro-invasive resin was utilized in group III, immediately before bracket bonding, and group IV, aging of the resin was conducted prior to bracket bonding. All samples were subjected to thermocycling after bracket bonding and prior to SBS and ARI testing and evaluation.

关键词： Teeth Fungi Materials Air force descriptive analytics Oral hygiene Adhesives Dental materials Health Laboratory animals Schools Surface finishing Thin films Calcium compounds Dentistry Department of defense Dwell time

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Program Evaluation of Prevention of Management of Disruptive Behavior-Military (PMDB-M) at Fort Bragg's Womack Army Medical Center (WAMC).

Program Evaluation of Prevention of Management of Disruptive...

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作者： McLemore, P. D. Waters, G. M.

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Effect of In Vitro Aging of Resin Microinfiltrant Restoration on Shear Bond Strength of Orthodontic Bracket Adhesive

Effect of In Vitro Aging of Resin Microinfiltrant Restoratio...

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作者： 59th MDW San Antonio TX 59th Medical Wing San Antonio TX 59th MDW San Antonio TX 59th Medical Wing San Antonio TX

Objective: To determine the impact of resin infiltration subjected to in vitro conditions on the shear bond strength (SBS) and adhesive remnant index (ARI) scores of orthodontic bracket adhesive.

关键词： Teeth Therapy Fungi Hygiene Materials Oral hygiene descriptive analytics Health Adhesives Dental materials Laboratory animals Surface finishing Thin films Calcium compounds Dentistry Dwell time Films Jaw Lactic acid Measurement

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Surgical and Radiographic Parameters to Guide Timing of Implant Loading: Posterior Mandible

Surgical and Radiographic Parameters to Guide Timing of Impl...

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作者： Voigt, R. L 59 MDW San Antonio TX 59th Medical Wing JBSA Lackland TX Uniformed Service University

When is the Best Time to Load an Implant?

关键词： Musculoskeletal physiology Measurement X-ray computed tomography Department of defense descriptive analytics Jaw Materials Oral hygiene Statistics Frequency Information science Calibration Data science Hygiene Skull Statistical analysis Tissues Tomography

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Defining and Enhancing Operationally Relevant Auditory Processing Skills

Defining and Enhancing Operationally Relevant Auditory Proce...

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作者： Reeves, E Kelley, A. M Jones, H Plummer, H Baugher, K Bowers, B Army Aeromedical Research Lab Fort Rucker AL Army Medical Research and Development Command Fort Detrick Md U.S. Army Medical Research and Development Command Fort Detrick MD

Military aviation requires its professionals to perform several hearing critical tasks (HCTs) throughout a mission. Such tasks involve the need to hear an excessive amount of auditory information and process it quickly in order to make crucial decisions. Compounding the difficulty of these tasks is the fact that pilots and aircrew must perform HCTs in a hazardous and excessively noisy operational environment. The goal of the current study was to determine if a commercially available CBAT program could enhance speech understanding (i.e., speech recognition or speech intelligibility) in noise and auditory working memory in Army aviators. Despite the limitations and challenges associated with this study, we are able to take away a few key points. The training program employed did not yield enhancements in speech intelligibility in noise or auditory working memory performance. The results of this study, however, are not sufficient to rule out the efficacy of this training type in this population of aircrew given the small sample size as well as limitations in exploring individual differences.

关键词： Ear Medical personnel Cognition Psychology Automated speech recognition Military medicine Reasoning Ear diseases Hearing loss Human factors engineering Mental processes Statistical analysis Statistics Technical information centers Word recognition Cognitive workload descriptive analytics

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Comparative Analysis of Predictive analytics Models in Classification Problems

Comparative Analysis of Predictive Analytics Models in Class...

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6th Conference on Actual Problems of Systems and Software Engineering (APSSE)

作者： Polyakov, Konstantin Liudmila, Zhukova Natl Res Univ Higher Sch Econ Fac Econ Sci Moscow Russia EC Leasing Moscow Russia

ISBN: (纸本)9781728160610

Present research is devoted to the comparative analysis of the quality of classification for some methods of descriptive and predictive analytics in the case when most (or all) of independent variables are measured in quality scale with large amount of levels. In this case, some classification methods or their popular realizations calls for conversion of quality variables into systems of dummy variables. If quality scales have large amount of levels which are presented in almost equal proportions in the training set, i.e. it doesn't make sense to enlarge levels, above mentioned requirement will lead to the dramatically rise of problem dimension. As a result, researcher is faced with the curse of dimensionality. It means that, if the problem dimension rise, it'll be necessary to rise the sample size to preserve factors impact estimation accuracy. At the same time, it's not always possible to arrange appropriate growth of the training set volume. In some cases, it's limited by specific properties of the body of interest (system). If such situation appears, it'll be extremely important to evaluate the sensitivity of prediction/classification methods to the curse of dimensionality. Authors of this research focused on the four method of classification, which earn first lines in the lists of the popular methods of business analysis long ago. There are: Two methods of classification tree building - CART and C4.5 Logistic regression Classification on the basis of random forest The first three are descriptive methods, which let's get interpreting (man ready) models, the fourth belongs to predictive analytics. Selection is not random. descriptive analytics problems extremely important for the process of planning, when it's necessary to get answer on the question "What will be if ... ?". Particularly, one need to get target group description for organization of marketing communication. At the same time, it is quite conceivable that utilization of interpreting (man ready) model

关键词： predictive analytics descriptive analytics social media analysis microfinance organization

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Data analytics on Price Prediction of Travelling Package using Regression Models 1

Data Analytics on Price Prediction of Travelling Package usi...

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1st International Conference on Artificial Intelligence and Data Sciences (AiDAS)

作者： Zaman, Ezzatul Akmal Kamaru Rahmat, Nur Athirah Azirah Binti Ahmad, Azlin Shahri, Nur Huda Nabihan Md Ismail, Mohd Najib Univ Teknol MARA Adv Analyt Engn Ctr Fac Comp & Math Sci Shah Alam Selangor Malaysia Univ Teknol MARA Fac Comp & Math Sci Shah Alam Selangor Malaysia Asia Pacific Univ Sch Comp Technol Pk Malaysia Kuala Lumpur Malaysia

ISBN: (纸本)9781728130415

Travel agencies set new prices on travel packages based on their experiences by analyzing the trend on holiday and festive season. However, they find it hard to set and predict exact travel packages with minimum prices to be offered for the upcoming years. Prices keep changing due to other reasons rather than the holiday and festive season. This research paper applied data analytics which is divided into two parts, 1) descriptive analytics to facilitate the agencies to have better insights of the data and 2) predictive analytics for price forecasting. Visualization is a part of descriptive analytics where dispersion and correlation of data are produced to gain insight of data. Meanwhile, in the predictive analytics part, Linear Regression and Multiple Linear Regression models are applied to predict the price of travel packages. Different parameter settings are applied to optimize the score of R- square. Hence, the final result of 0.9346 R-square is achieved by applying Multiple Linear Regression with all variables are taken into consideration.

关键词： data analytics descriptive analytics linear regression multiple linear regression predictive analytics R-square travel packages

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Supplierselection under disaster uncertainty with jointprocurement

Supplierselection under disaster uncertainty with jointprocu...

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作者： Brown, Camille Kansas State University

学位级别：硕士

Health care organizations must have enough supplies and equipment on hand to adequately respond to events such as terrorist attacks, infectious disease outbreaks, and natural disasters. This is achieved through a robust supply chain system. Nationwide, states are assessing their current supply chains to identify gaps that may present issues during disaster preparedness and response. During an assessment of the Kansas health care supply chain, a number of vulnerabilities were identified, one of which being supplier consolidation. Through mergers and acquisitions, the number of suppliers within the health care field has been decreasing over the years. This can pose problems during disaster response when there is a surge in demand and multiple organizations are relying on the same suppliers to provide equipment and supplies. This thesis explores the potential for joint procurement agreements to encourage supplier diversity by splitting purchasing among multiple suppliers. In joint procurement, two or more customers combine their purchases into one large order so that they can receive quantity discounts from a supplier. This research makes three important contributions to supplier selection under disaster uncertainty. The first of these is the development of a scenario-based supplier selection model under uncertainty with joint procurement. This optimization model can be used to observe customer purchasing decisions in various scenarios while considering the probability of disaster occurrence. Second, the model is applied to a set of experiments to analyze the results when supplier diversity is increased and when joint procurement is introduced. This leads to the third and final contribution: a set of recommendations for health care organization decision makers regarding ways to increase supplier diversity and decrease the risk of disruption associated with disaster occurrence.

关键词： Health care preparedness and response descriptive analytics Supplier selection

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Supplier selection under disaster uncertainty with joint procurement

Supplier selection under disaster uncertainty with joint pro...

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作者： Brown, Camille D. Kansas State University

学位级别：硕士

关键词： Health care preparedness and response descriptive analytics Supplier selection

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Evaluation of Brasseler USA XP-3D Shaper and Its Effect on Apical Foramen Size

Evaluation of Brasseler USA XP-3D Shaper and Its Effect on A...

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作者： Wegiel, B. J Delgado, S Lindsey, K Lindsey, T UNIFORMED SERVICES UNIV OF THE HEALTH SCIENCES ARMY POSTGRADUATE DENTAL SCHOOL FORT BRAGG UNIFORMED SERVICES UNIV OF THE HEALTH SCIENCES BETHESDA MD Uniformed Services University of the Health Sciences Bethesda MD

Adequate working length (WL) and minimal enlargement of the apical foramen are important for successful endodontic outcomes 1,2. Even though procedural errors, such as unintentional enlargement of the apical foramen, are not the direct cause of treatment failure, they can potentially cause a treatment failure or diminished long-term prognosis. It has been suggested that enlargement of the canal to 3 sizes larger than the first apically binding file is sufficient and additional enlargement of the canal will not cause any further benefits 3. Additionally, some even suggest that no apical enlargement is necessary in order to achieve proper disinfection of the root canal system 4. Introduction of rotary nickel-titanium (NiTi) files and their constant improvement had allowed to minimize procedural iatrogenic errors and better control over cleaning and shaping procedures. Advancements in metallurgy allowed for introduction of multiple new instrumentation systems and single files that claim to perform fast, accurate and adequate cleaning and shaping of the root canal systems without excessive enlargement of the apical foramen 5,6. Brasseler XP-3D Shaper is a new rotary file with adaptive core design that allows it to conform to canal morphology ranging from size no. 30 to no. 90 at a .02 to .08 taper. The instrument is designed so when it rotates, its orbit expands and contracts to equally abrade the broad and narrow aspects of the canal as it continually adapts to the canals anatomy 7. Research indicates that when using the XP-3D Shaper, the final taper of the canal will indeed vary according to the original size and shape of the root canal system 8,9. In addition, XP-3D shaper was evaluated when used at the foramen and was found to enlarge but not deform the apical foramen 10.

关键词： Root canal Instrumentation Analysis of variance Information science Materials Universities Data science Department of defense descriptive analytics Literature surveys North carolina Statistics Theses Transportation Governments Health Test and evaluation

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