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https://www.readbyqxmd.com/read/29340629/development-of-a-set-of-mesh-based-and-age-dependent-chinese-phantoms-and-application-for-ct-dose-calculations
#1
Yifei Pi, Tianyu Liu, X George Xu
Phantoms for organ dose calculations are essential in radiation protection dosimetry. This article describes the development of a set of mesh-based and age-dependent phantoms for Chinese populations using reference data recommended by the Chinese government and by the International Atomic Energy Agency (IAEA). Existing mesh-based RPI adult male (RPI-AM) and RPI adult female (RPI-AF) phantoms were deformed to form new phantoms according to anatomical data for the height and weight of Chinese individuals of 5 years old male, 5 years old female, 10 years old male, 10 years old female,15 years old male, 15 years old female, adult male and adult female-named USTC-5 M, USTC-5F, USTC-10M, USTC-10F, USTC-15M, USTC-15F, USTC-AM and USTC-AF, respectively...
January 11, 2018: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/29338953/violent-crime-and-park-use-in-low-income-urban-neighborhoods
#2
Bing Han, Deborah A Cohen, Kathryn P Derose, Jiang Li, Stephanie Williamson
INTRODUCTION: Crime and safety are often cited as potential hurdles to park use and park-based physical activity. Using comprehensive data sources including both objective and subjective measurements at the park level and the individual level, this study aimed to assess the association between crime rates and use of local parks in low-income urban neighborhoods. METHODS: The authors observed 48 parks and conducted local resident surveys in low-income neighborhoods in Los Angeles during a 2-year study period (2013-2015)...
January 12, 2018: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/29336593/effect-of-vitamin-a-supplementation-on-iron-status-in-humans-a-systematic-review-and-meta-analysis
#3
Marcela de Sá Barreto da Cunha, Natália Aboudib Campos Hankins, Sandra Fernandes Arruda
Anemia is a worldwide public health problem that can be related to many causes, including vitamin A deficiency. The aim of this study was to assess and estimate the effect of vitamin A supplementation (VAS) on iron status biomarkers and anemia in humans. Six databases, including Cochrane, EMBASE, LILACS, Pubmed, Scopus and Web of Science, were searched for clinical trials and cohort studies that investigated the effect of vitamin A supplementation alone on iron status and anemia, without time-restriction. The search yielded 23 eligible studies, 21 clinical trials and 2 cohort studies, with children, teenagers, pregnant or lactating women...
January 16, 2018: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/29336123/balance-assessment-in-deaf-children-and-teenagers-prior-to-and-post-capoeira-practice-through-the-berg-balance-scale
#4
Rubianne Lima
INTRODUCTION: Hearing loss changes the functionality and body structure a disability that limits activity and restricts the participation of the individual in situations of daily life. It is believed that capoeira can help people with visual disabilities to minimize these deficits. BSE is a low specificity scale that evaluates objectively and functionally aspects of balance and risk of falls in the elderly and children, including the effect of environment on balance function. OBJECTIVE: The objective of the research is to analyze deaf children and adolescents prior to and post-practice of capoeira using the Berg Balance Scale (BBS)...
December 1, 2017: International Tinnitus Journal
https://www.readbyqxmd.com/read/29331657/views-of-teenage-children-about-the-effects-of-a-parent-s-mobility-disability
#5
Lisa I Iezzoni, Amy J Wint, Alexy Arauz Boudreau, Cheri A Blauwet, Karen A Kuhlthau
BACKGROUND: Few U.S. studies have explored how children experience a parent's mobility disability and its effects on their daily lives. OBJECTIVE: We aimed to engage youth ages 13-17 who had at least one parent with mobility disability in describing their perceptions of their parent's disability and its consequences for their daily and family life. METHODS: Participants videoed and photographed their experiences following general guidelines from the researchers about topics of interest...
December 29, 2017: Disability and Health Journal
https://www.readbyqxmd.com/read/29328417/microrna-129-5p-suppresses-cell-proliferation-migration-and-invasion-via-targeting-rock1-in-osteosarcoma
#6
Chaofan Han, Wenbo Wang
Osteosarcoma (OS) is the most common primary malignancy of the bone in teenagers and accounts for 20‑35% of all malignant primary bone tumors. Increasing evidence shows that microRNAs (miRNAs) are abnormally expressed in several types of human cancer. miRNAs are necessary to maintain the malignant phenotype of cancer cells and can function as either tumor suppressors or oncogenes. The present study aimed to measure the expression of miRNA‑129‑5p (miR‑129‑5p) in OS, determine the effects of miR‑129‑5p on the malignant behaviors of OS cells, and elucidate the molecular mechanism underlying the oncogenesis and progression of OS...
January 4, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29326880/blood-phenylalanine-instability-strongly-correlates-with-anxiety-in-phenylketonuria
#7
Bozena Didycz, Miroslaw Bik-Multanowski
We assessed the relationship between anxiety and long-term metabolic control in adolescents with phenylketonuria (PKU). We used a standardized psychological test to measure anxiety level and analyzed lifelong blood phenylalanine stability in a selected group of 25 PKU teenagers with treatment adherence problems. We demonstrated significant correlations of anxiety with variability of blood phenylalanine concentrations and with severity of hyperphenylalaninemia. Avoiding blood phenylalanine fluctuations in childhood can probably reduce anxiety in PKU adolescents...
March 2018: Molecular Genetics and Metabolism Reports
https://www.readbyqxmd.com/read/29326768/streptococcus-constellatus-spondylodiscitis-in-a-teenager-a-case-report
#8
S W Lim, H Y Lim, T Kannaiah, Z Zuki
Streptococcus constellatus is an extremely rare cause of pyogenic spondylodiscitis. Literature search yielded only one case report in an elderly 72 years old man with spontaneous T10-T11 S. constellatus spondylodiscitis. It is virtually unheard of in young teenage. We report the case of a 14 years old male teenager who presented with worsening low back pain for one year with no neurological deficit. Imaging studies were consistent with features of L4-L5 spondylodiscitis. CT guided biopsy grew a pure culture of streptococcus constellatus sensitive to penicillin and erythromycin...
November 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/29326036/exploring-young-mothers-experiences-with-postpartum-contraception-in-ottawa-results-from-a-multi-methods-qualitative-study
#9
Elyse Fortier, Angel M Foster
OBJECTIVES: Postpartum contraception plays a significant role in reducing subsequent pregnancy. However, young mothers in Ottawa, the capital of Canada, face various barriers when trying to access contraception after delivery. Through this project we aimed to explore these barriers and understand the decision-making processes of young mothers surrounding postpartum contraception. STUDY DESIGN: We conducted 10 semi-structured in-depth interviews with young mothers living in Ottawa who had experienced a subsequent pregnancy within 24 months of their first childbirth...
January 8, 2018: Contraception
https://www.readbyqxmd.com/read/29323610/the-debate-about-electronic-cigarettes-harm-minimization-or-the-precautionary-principle
#10
Lawrence W Green, Jonathan E Fielding, Ross C Brownson
Two contrasting reviews (authored by Abrams et al. and Glanz & Bareham) in this volume have reached opposing conclusions on the effects of electronic cigarettes in a debate that is dividing the scientific and professional communities that have devoted careers to controlling the manufacture, advertising, sale, and use of combustible cigarettes. The research on the types, degree, and extent of harm from e-cigarettes is far from complete and, together with trends in teenage smoking and vaping, has raised new questions and prospects about the potential benefits that the new electronic products offer smokers of combustible cigarettes in quitting or at least cutting back on the known risks associated with the traditional forms of smoking...
January 11, 2018: Annual Review of Public Health
https://www.readbyqxmd.com/read/29322160/underweight-overweight-and-obesity-in-children-and-adolescents-from-minsk-belarus-in-the-period-2001-2008
#11
Tatyana Hurbo, Halina Skryhan, Veranika Radyhina, Mikalai Pamazanau
Objective: The aim of the study is to consider the prevalence of all deviations from the body weight standard (underweight, overweight and obesity) among 4-18 years old children, adolescents and youths of Minsk, Belarus examined in the period 2001-2008. Subjects and methods: The measurements of 2969 children, teenagers and young adults carried out in the period 2001-2008 were used. Children were classified as underweight, normal weight, overweight and obese using Body Mass Index (BMI) cutoff points proposed by IOTF...
January 10, 2018: Anthropologischer Anzeiger; Bericht über die Biologisch-anthropologische Literatur
https://www.readbyqxmd.com/read/29320447/parents-perspectives-on-family-sexuality-communication-from-middle-school-to-high-school
#12
Jennifer M Grossman, Lisa J Jenkins, Amanda M Richer
Parents' conversations with teens about sex and relationships can play a critical role in improving teenage reproductive health by reducing teens' risky sexual behavior. However, little is known about how teen-parent communication changes from early to middle adolescence and how parents can tailor their communication to address their teens' changing development and experiences during these periods. In this longitudinal qualitative study, U.S. parents (N = 23) participated in interviews when their teens were in early adolescence, then again when the teens were in middle adolescence...
January 10, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29318926/assessment-of-preeclampsia-risk-by-use-of-serum-ionized-magnesium-based-equation
#13
Chatchai Kreepala, Maethaphan Kitporntheranunt, Worrawat Sangwipasnapaporn, Warit Rungsrithananon, Krittanont Wattanavaekin
BACKGROUND: Preeclampsia is a common medical complication in pregnancy. It has been reported to be associated with decreased serum magnesium levels. However, there has not been evidence demonstrating utilization of change in magnesium for prediction of preeclampsia. The purpose of this study was to develop magnesium fraction-based equations which took other significant clinical risk factors into consideration for prediction of preeclampsia. METHODS: We collected serum total and ionized magnesium ionized magnesium levels from 84 pregnant women diagnosed with preeclampsia after week 20 of pregnancy...
November 2018: Renal Failure
https://www.readbyqxmd.com/read/29318431/computed-tomography-use-in-a-large-italian-region-trend-analysis-2004-2014-of-emergency-and-outpatient-ct-examinations-in-children-and-adults
#14
Andrea Pola, Daniela Corbella, Andrea Righini, Alberto Torresin, Paola E Colombo, Luigi Vismara, Luca Trombetta, Michele Maddalo, Maria Vittoria Introini, Daniela Tinelli, Laura Strohmenger, Giovanna Garattini, Angelica Munari, Fabio Triulzi
OBJECTIVES: To analyse CT use in recent years in a high-density Italian area (±10 million inhabitants, including 1 million children), focusing on developing age. METHODS: Retrospective analysis of records from HealthCare IT System, covering >400 hospitals and clinics. Description of CT use between 2004-2014 in emergency and outpatient care and assessment of radiation exposure trend. RESULTS: Over 9 million scans were performed. Emergency procedures showed a global increase of 230 %, mainly head examinations...
January 9, 2018: European Radiology
https://www.readbyqxmd.com/read/29314322/association-between-pro-inflammatory-alleles-and-allergic-phenotypes-in-xhosa-adolescents
#15
Craig Laurence, Lize van der Merwe, Guicheng Zhang, Peter LeSouëf, Michael Levin
BACKGROUND: Significant differences exist in the prevalence, spectrum and severity of allergic diseases between developing and developed countries and between sub-populations within single countries. These discrepancies likely result from a complex interaction between genetic and environmental factors. However, the precise nature of the contribution of ethnicity to genetic differences in the predisposition to allergic disease is not yet fully understood. In particular, there is a paucity of literature regarding the genetic determinants of allergic disease in people of black African origin with little or no genetic admixture...
January 4, 2018: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/29310603/characteristics-of-positive-interaction-parenting-style-among-primiparous-teenage-optimal-age-and-advanced-age-mothers-in-canada
#16
Theresa H M Kim, Jennifer A Connolly, Michael Rotondi, Hala Tamim
BACKGROUND: Positive-interaction parenting early in childhood is encouraged due to its association with behavioural development later in life. The objective of this study was to examine if the level of positive-interaction parenting style differs among teen, optimal age, and advanced age mothers in Canada, and to identify the characteristics associated with positive-interaction parenting style separately for each age group. METHODS: This was a cross-sectional secondary analysis of the National Longitudinal Survey of Children and Youth...
January 8, 2018: BMC Pediatrics
https://www.readbyqxmd.com/read/29308515/-measurement-of-anterior-teeth-widths-in-236-uygur-teenagers
#17
Shuang Zhang, Tian-Heng Cai, Cong-Bo Mi
PURPOSE: In order to provide reference for orthodontic and esthetic dentistry, we measured anterior teeth widths, and analyzed the ratio between the teeth in 236 Uygur teenagers. METHODS: Two hundred and thirty-six samples were selected from Uygur population,Vernier calipers was used to measure the widths of the anterior teeth. SPSS21.0 software package was used for independent sample t test, paired t test and REG regression. RESULTS: Except for mandibular lateral incisors, significant difference was observed in anterior teeth widths between males and females, the ratio between the upper and lower central incisors in males was nearly 1...
October 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/29308070/prevalence-of-teen-dating-victimization-among-a-representative-sample-of-high-school-students-in-quebec
#18
Martine Hébert, Martin Blais, Francine Lavoie
Background/Objective: The present study aimed to (1) examine prevalence rates and frequency of dating violence victimization among a representative sample of Quebec high school adolescents and (2) explore possible gender differences in these rates as well as in perceived impact of victimization. Method: A sample of 8,194 students completed questionnaires evaluating dating victimization in the past 12 months as well as perceived impacts. Results: Results show that psychological violence is the most frequent form of dating victimization reported...
September 2017: International Journal of Clinical and Health Psychology: IJCHP
https://www.readbyqxmd.com/read/29307164/primary-disseminated-hydatid-cysts-in-a-14-year-old-girl-a-case-report
#19
Nazanin Fallah, Soghra Rabiee, Mohammad Fallah
Hydatid cysts in humans usually located in the liver or lungs primarily and some case in the other organs. Sometimes, because the trauma or medical manipulating, the cyst may be rupture and protoscoleces spillage resulted in secondary hydatid cyst. Primary dissemination of cyst to multiple organs is a rare phenomenon. Herein, we reported a 14-year-old teenage female patient with symptoms of abdominal pain with an unusual ultrasonographic and computed tomographic presentation mimicking polycystic ovarian syndrome PCOS...
November 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/29306622/commonly-occurring-adverse-birth-outcomes-and-maternal-depression-a-longitudinal-study
#20
A M Kingsbury, M Plotnikova, J M Najman
OBJECTIVES: Little is known about whether commonly occurring adverse birth outcomes have a long-term impact on the mental health of mothers. The aim of this study was to investigate whether commonly occurring adverse birth outcomes predicted mothers' depressive-symptom trajectories over a 27-year period following the birth of a baby. STUDY DESIGN: Longitudinal study. METHODS: Participants comprised a sub-group of women from the longitudinal cohort of the Mater and University of Queensland Study of Pregnancy...
January 4, 2018: Public Health
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