Statistics and Probability Commons^™

9th Annual Postdoctoral Science Symposium, University Of Texas Md Anderson Cancer Center Postdoctoral Association

Annual Postdoctoral Science Symposium Abstracts

The mission of the Annual Postdoctoral Science Symposium (APSS) is to provide a platform for talented postdoctoral fellows throughout the Texas Medical Center to present their work to a wider audience. The MD Anderson Postdoctoral Association convened its inaugural Annual Postdoctoral Science Symposium (APSS) on August 4, 2011.

The APSS provides a professional venue for postdoctoral scientists to develop, clarify, and refine their research as a result of formal reviews and critiques of faculty and other postdoctoral scientists. Additionally, attendees discuss current research on a broad range of subjects while promoting academic interactions and enrichment and developing new collaborations.

Fake News And Stem, Vikki French

The Liminal: Interdisciplinary Journal of Technology in Education

Based on over ten years teaching mathematics, statistics and science in universities, communities colleges, and for-profit universities, I have witnessed how Fake News is part of these disciplines and how students can easily be misled into accepting pseudoscience. This is a report of my findings.

The Estimation Of Missing Values In Rectangular Lattice Designs, Emmanuel Ogochukwu Ossai, Abimibola Victoria Oladugba

Journal of Modern Applied Statistical Methods

Algebraic expressions for estimating missing data when one or more observation(s) are missing in Rectangular lattice designs with repetition were derived using the method of minimizing the residual sum of squares. Results showed that the estimated value(s) were significantly approximate to that of the actual value(s).

Statistical L-Moment And L-Moment Ratio Estimation And Their Applicability In Network Analysis, Timothy S. Anderson

Theses and Dissertations

This research centers on finding the statistical moments, network measures, and statistical tests that are most sensitive to various node degradations for the Barabási-Albert, Erdös-Rényi, and Watts-Strogratz network models. Thirty-five different graph structures were simulated for each of the random graph generation algorithms, and sensitivity analysis was undertaken on three different network measures: degree, betweenness, and closeness. In an effort to find the statistical moments that are the most sensitive to degradation within each network, four traditional moments: mean, variance, skewness, and kurtosis as well as three non-traditional moments: L-variance, L-skewness, and L-kurtosis were examined. Each of these moments were …

On Nonoscillatory Solutions Of Three Dimensional Time-Scale Systems, Elvan Akin, Taher Hassan, Ozkan Ozturk, Ismail U. Tiryaki

Mathematics and Statistics Faculty Research & Creative Works

In this article, we classify nonoscillatory solutions of a system of three-dimensional time scale systems. We use the method of considering the sign of components of such solutions. Examples are given to highlight some of our results. Moreover, the existence of such solutions is obtained by Knaster's fixed point theorem.

Rplidar A2 Accuracy, Ramiro O. Garcia

STAR Program Research Presentations

Traffic is not only a source of frustration but also a leading cause of death for people under 35 years of age. Recent research has focused on how driver assistance technology can be used to mitigate traffic fatalities and create more enjoyable commutes. In addition, self-driving vehicles can reduce fuel consumption the amount by 5% and increases the number of cars on the highway. To achieve this we need to research reliable sensors. This summer I research Rplidar A2 sensor which hopefully will be responsible for recording distance to the preceding car and helping prevent Insider Attacks or Misbehaviors of …

American Bittern (Botaurus Lentiginosus), Jennifer Smetzer, Toni Lyn Morelli

Second Century Stewardship Refugia Products

No abstract provided.

Portland Symphony Orchestra: Pso Explorers Program Evaluation, Susy Hawes, Sarah Goan, Emilie Swenson Msw

Publications

In 2012, after a strategic planning process and community needs assessment, the Portland Symphony Orchestra (PSO) identified several ways the arts could better serve the community. One result was the creation of PSO Explorers, an arts integration program that brings symphony musicians into kindergarten through third grade classrooms at Portland’s Howard C. Reiche Community School and Longfellow Elementary School. The program uses music to support and enrich students’ learning in literacy, math, science, and social-emotional development by connecting musical activities with classroom lessons. PSO Explorers also helps teachers by providing ideas and skills for using the arts in their daily …

The Ace1 Electrical Impedance Tomography System For Thoracic Imaging, Michelle M. Mellenthin, Jennifer L. Mueller, Erick Dario Leon Bueno De Camargo, Fernando Silva De Moura, Talles Batista Rattis Santos, Raul Gonzales Lima, Sarah J. Hamilton, Peter A. Muller, Melody Alsaker

Mathematical and Statistical Science Faculty Research and Publications

The design and performance of the active complex electrode (ACE1) electrical impedance tomography system for single-ended phasic voltage measurements are presented. The design of the hardware and calibration procedures allows for reconstruction of conductivity and permittivity images. Phase measurement is achieved with the ACE1 active electrode circuit which measures the amplitude and phase of the voltage and the applied current at the location at which current is injected into the body. An evaluation of the system performance under typical operating conditions includes details of demodulation and calibration and an in-depth look at insightful metrics, such as signal-to-noise ratio variations during …

Semi-Supervised Regression With Generative Adversarial Networks Using Minimal Labeled Data, Greg Olmschenk

Dissertations, Theses, and Capstone Projects

This work studies the generalization of semi-supervised generative adversarial networks (GANs) to regression tasks. A novel feature layer contrasting optimization function, in conjunction with a feature matching optimization, allows the adversarial network to learn from unannotated data and thereby reduce the number of labels required to train a predictive network. An analysis of simulated training conditions is performed to explore the capabilities and limitations of the method. In concert with the semi-supervised regression GANs, an improved label topology and upsampling technique for multi-target regression tasks are shown to reduce data requirements. Improvements are demonstrated on a wide variety of vision …

Sample Size Requirements And Considerations For Models To Assess Human-Machine System Performance, Jennifer S. G. Lopez

Theses and Dissertations

Hierarchical Linear Models (HLMs), also known as multi-level models, are an extension of multiple regression analysis and can aid in the understanding of human and machine workloads of a system. These models allow for prediction and testing in systems with hierarchies of two or more levels. The complex interrelated variability of these multi-level models exists in operational settings, such as the Air Force Distributed Common Ground System Full Motion Video (AF DCGS FMV) community which is composed of individuals (Level-1), groups (Level-2), units (Level-3), and organizations (Level-4). Through the development of sample size requirements and considerations for multi-level models, this …

Hematological Indices Of Pesticide Exposure Rice Farmers In Southern Thailand, Wiyada Kwanhian, Supabhorn Yimthiang, Siriuma Jawjit, Junjira Mahaboon, Udomratana Vattanasit, Phiman Thirarattanasunthon

Kesmas

The most common pesticides used in rice farming are organophosphates and carbamates. These pesticides inhibit acetylcholinesterase (AChE) activity, resulting in excessive levels of acetylcholine accumulation and disrupted neurotransmission. This study compared AChE activity and hematological parameters between pesticide-using rice farmers, non-pesticide using rice farmers, and non-agricultural occupational groups (non-farmers). Pesticide residues that accumulated in rice and the water and soil of the study area were also determined. AChE activity of all participants showed 10 from 87 samples (11.49%) as borderline depressed, with 50% of these being pesticide-using farmers. Most of the hematological parameters were normal in all samples. However, platelet …

Analysis Of Traditional Health Care In Three Community Health Centers In West Java Province, Indonesia, 2018, Adik Wibowo, Evita Diniawati, Than Tun Sein

Kesmas

The National Traditional Health Care set up three objectives for its implementation at the health centers, whereby health staff to be trained on traditional health and provide accupressure care, able to collect data, register and provide technical guidance to traditional healers and guide individuals in the use of traditional medicine and herbs. This qualitative research aimed to analyze the implementation of traditional health care at 3 subdistrict health centers Ciomas, Ciawi and Caringin in district Bogor. Data was collected through document analysis, observation and indepth inteview. Each health center has trained staff in accupressure but care is hindered by lack …

Behavior Problem Impact To Decreasing Kidney Function Among Migrant Workers, Laily Isroin, Made Suandika

Kesmas

Indonesian Workers were undergoing 18% of hemodyalysis from the number of hemodyalysis patients. They did not know about CRF. The study aimed to analyze the behavior of migrant workers who were suffering hemodyalysis. The study used a qualitative design with a phenomenological approach, that is carried out on former migrant workers who suffer from chronic kidney failure. Indepth interview used as data collection. While data validation used triangulation and confirmability. Data analysis techniques was done by reducing and interpreting the data. The study show migrant workers behavior before becoming migrant workers were very pathetic. They often drunk kind of energy …

Effects Of Son Preference On Contraceptive Use In Bangladesh, Mohammad Nazmul Hoq

Kesmas

Son preference resulting from traditional beliefs, social customs and economic benefits including support of aging parents is widespread not only in Bangladesh but also in many Asian and African countries, which are believed for low levels of contraceptive use. To carry out the research task effectively and efficiently, the research work extracted 16,858 currently married women aged 15-49 out of 17,863 ever-married women from a nationally representative 2014 Bangladesh Demographic and Health Survey Data (BDHS, 2014) set. Levels of contraceptive prevalence rate of the respondents having only daughters is found only 48.4, which is remarkably lower than the national average …

The Risk Of Hypertension In Adulthood As A Consequence Of Adolescent Obesity, Demsa Simbolon, Epti Yorita, Ruzita Abd Talib

Kesmas

Population increase in adolescence are associated with increased overweight and obesity problems. If this problem not early intervention will have an impact on increasing hypertension prevalence and risk of death. This research aimed to explain the consequences of overweight and obesity in adolescent to hypertension in adults. The study used Indonesian Family Life Survey (IFLS) data with a retrospective cohort study. Adolescent BMI measurements on 2007 and the risk of hypertension on 2014. Population are all adolescents aged 10-20 years in 2007. Sample of 1,697 adolescent who randomly IFLS 2007 with the inclusion criteria: biological children and a single birth, …

Duration Of Hormonal Contraception And Risk Of Cervical Cancer, Yuni Kusmiyati, Annisaputri Prasistyami, Heni Puji Wahyuningsih, Hesty Widyasih, Qorinah Estiningtyas Sakilah Adnani

Kesmas

The use of long hormonal contraceptives can disrupt the balance of estrogen in the body, resulting in abnormal cell changes. This study aimed to determine a correlation between the duration of hormonal contraception and risk of cervical cancer. This study used a case-control design. The population were patients who had examined at a cancer installation and obstetrics-gynecology polyclinic Dr. Sardjito Hospital in 2018. Case samples were 95 women have cervical cancer diagnosis and control were 95 women with a negative pap smear. Sampling with random sampling. Dependent variable cervical cancer and independent variable the duration of hormonal contraception are obtained …

Private Midwives’ Perceptions On Barriers And Enabling Factors To Voluntary Counselling And Hiv Test (Vct) In Bali, Indonesia, Dinar Saurmauli Lubis, Lpl Wulandari, Ni Luh Putu Suariyani, Kadek Tresna Adhi, Sari Andajani

Kesmas

In Indonesia, more than half of pregnant women seek antenatal care (ANC) at private midwifery clinics. The midwives play an important role in advocating for voluntary counseling and testing (VCT) uptake among pregnant women during ANC. This study examined midwives’ perception of barriers and enabling factors with regards to refer pregnant women for HIV testing. The study was conducted in Denpasar City and Badung District, two localities in Bali with high HIV prevalence. Two focus groups discussions with 15 private midwives and five in-depth interviews were conducted. Data were transcribed verbatim and thematic analysis methods were used to examine patterns …

Animal Research, Accountability, Openness And Public Engagement: Report From An International Expert Forum, Elisabeth H. Ormandy, Daniel M. Weary, Katarina Cvek, Mark Fisher, Kathrin Herrmann, Pru Hobson-West, Michael Mcdonald, William Milsom, Margaret Rose, Andrew Rowan, Joanne Zurlo, Marina A.G. Von Keyserlingk

Oversight of Animal Experimentation Collection

In November 2013, a group of international experts in animal research policy (n = 11) gathered in Vancouver, Canada, to discuss openness and accountability in animal research. The primary objective was to bring together participants from various jurisdictions (United States, Sweden, Australia, New Zealand, Germany, Canada and the United Kingdom) to share practices regarding the governance of animals used in research, testing and education, with emphasis on the governance process followed, the methods of community engagement, and the balance of openness versus confidentiality. During the forum, participants came to a broad consensus on the need for: (a) evidence-based metrics to …

Who Can Act? Critical Assumptions At The Foundations Of Statistical Analysis, Peter J. Taylor

Working Papers on Science in a Changing World

Thinking about a simple teaching example on the t-test for comparing the average (mean) for some measurement in a group versus the average in another led me to articulate a sequence of thoughts and questions about the foundations of statistical analysis. In particular, my inquiry explores contrasts between: the statistical emphasis on averages or types around which there is variation or noise; variation as a mixture of types; the dynamics (or heterogeneous mix of dynamics) that generated the data analyzed; and participatory restructuring of these dynamics in the future. Two key issues are: Who is assumed to be able to …