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https://www.readbyqxmd.com/read/28651412/-comparison-of-application-of-cochran-armitage-trend-test-and-linear-regression-analysis-for-rate-trend-analysis-in-epidemiology-study
#1
D Z Wang, C Wang, C F Shen, Y Zhang, H Zhang, G D Song, X D Xue, Z L Xu, S Zhang, G H Jiang
We described the time trend of acute myocardial infarction (AMI) from 1999 to 2013 in Tianjin incidence rate with Cochran-Armitage trend (CAT) test and linear regression analysis, and the results were compared. Based on actual population, CAT test had much stronger statistical power than linear regression analysis for both overall incidence trend and age specific incidence trend (Cochran-Armitage trend P value<linear regression P value). The statistical power of CAT test decreased, while the result of linear regression analysis remained the same when population size was reduced by 100 times and AMI incidence rate remained unchanged...
May 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28651393/-a-cross-section-study-on-physical-endurance-level-in-primary-and-middle-school-students-in-china-2014
#2
R Tian, Z H Wang, Y H Dong, Z P Yang, J Ma
Objective: To understand the physical endurance level of primary and middle school students in China in 2014, and identify the factors influencing students'physical endurance. Methods: Data were collected from"National School Student Physical Fitness and Health Surveillance in 2014" , a total of 142 708 primary and middle school students with complete information were included in the analysis. The age, gender and area specific failure rates of endurance running of students were analyzed, the differences were analyzed with χ(2) test, and the factors influencing students' physical endurance were identified with log-binomial regression model...
May 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28651391/-prevalence-of-myopia-and-increase-trend-in-children-and-adolescents-aged-7-18-years-in-han-ethnic-group-in-china-2005-2014
#3
Y H Dong, H B Liu, Z H Wang, Z P Yang, R B Xu, Z G Yang, J Ma
Objective: To understand and evaluate the prevalence of myopia and its trend in children and adolescents aged 7-18 years in Han ethnic group in China from 2005 to 2014, and provide evidence for the prevention of myopia. Methods: The data of 2005, 2010 and 2014 Chinese National Students Constitution and Health Surveys were collected. The children and adolescents with complete detection data of binoculus were selected as study subjects. The sample size of three studies were 233 108, 215 319 and 212 743, respectively...
May 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28651303/nomograms-to-predict-the-individual-survival-of-patients-with-solitary-hepatocellular-carcinoma-after-hepatectomy
#4
Junyi Shen, Linye He, Chuan Li, Tianfu Wen, Weixia Chen, Changli Lu, Lvnan Yan, Bo Li, Jiayin Yang
Background/Aims: Solitary hepatocellular carcinoma (HCC) is a subgroup of HCCs. We aimed to establish nomograms for predicting the survival of solitary HCC patients after hepatectomy. Methods: A total of 538 solitary HCC patients were randomly classified into training and validation sets. A Cox model was used to identify predictors of overall survival (OS) in the training set. A nomogram was generated based on these predictors and was validated using the validation set...
June 27, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28651117/mantle-cell-lymphoma-current-standards-of-care-and-future-directions
#5
REVIEW
Peter Martin, Paola Ghione, Martin Dreyling
Over the past decade we have seen significant changes in the biological characterization and strategies for treatment of mantle cell lymphoma (MCL). MCL is heterogeneous a disease, and so are the people that have it; although guidelines are appropriate, therapeutic approaches must be individualized based on a variety of factors. In this review, we summarize data on the range of therapeutic options, from observation in patients with slowly progressive low-tumor-burden MCL, to bendamustine-based regimens in typical MCL, to high-dose cytarabine-based regimens in young, fit patients...
June 13, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28651081/inactivation-of-pathogenic-microorganisms-in-freshwater-using-hso5-uv-a-led-and-hso5-m-n-uv-a-led-oxidation-processes
#6
Jorge Rodríguez-Chueca, Tatiana Silva, José R Fernandes, Marco S Lucas, Gianluca Li Puma, José A Peres, Ana Sampaio
Freshwater disinfection using photolytic and catalytic activation of peroxymonosulphate (PMS) through PMS/UV-A LED and PMS/M(n+)/UV-A LED [M(n+) = Fe(2+) or Co(2+)] processes was evaluated through the inactivation of three different bacteria: Escherichia coli (Gram-negative), Bacillus mycoides (sporulated Gram-positive), Staphylococcus aureus (non-sporulated Gram-positive), and the fungus Candida albicans. Photolytic and catalytic activation of PMS were effective in the total inactivation of the bacteria using 0...
June 10, 2017: Water Research
https://www.readbyqxmd.com/read/28650996/whole-transcriptomic-and-proteomic-analyses-of-an-isogenic-m-tuberculosis-clinical-strain-with-a-naturally-occurring-15-kb-genomic-deletion
#7
Carla Duncan, Frances B Jamieson, JoLynn Troudt, Linda Izzo, Helle Bielefeldt-Ohmann, Angelo Izzo, Carolina Mehaffy
Tuberculosis remains one of the most difficult to control infectious diseases in the world. Many different factors contribute to the complexity of this disease. These include the ability of the host to control the infection which may directly relate to nutritional status, presence of co-morbidities and genetic predisposition. Pathogen factors, in particular the ability of different Mycobacterium tuberculosis strains to respond to the harsh environment of the host granuloma, which includes low oxygen and nutrient availability and the presence of damaging radical oxygen and nitrogen species, also play an important role in the success of different strains to cause disease...
2017: PloS One
https://www.readbyqxmd.com/read/28650969/development-and-psychometric-properties-of-knee-specific-body-perception-questionnaire-in-people-with-knee-osteoarthritis-the-fremantle-knee-awareness-questionnaire
#8
Tomohiko Nishigami, Akira Mibu, Katsuyoshi Tanaka, Yuh Yamashita, Eiji Yamada, Benedict M Wand, Mark J Catley, Tasha R Stanton, G Lorimer Moseley
BACKGROUND: Recent systematic reviews have demonstrated that pain associated with knee osteoarthritis (OA) is a complex phenomenon that involves various contributors. People with knee OA exhibit symptoms of impaired body-perception, including reduced tactile acuity, impairments in limb laterality recognition, and degraded proprioceptive acuity. The Fremantle Back Awareness Questionnaire (FreBAQ) was developed to assess body-perception specific to the back in people with chronic low back pain...
2017: PloS One
https://www.readbyqxmd.com/read/28650962/novel-inference-models-for-estimation-of-abundance-survivorship-and-recruitment-in-mosquito-populations-using-mark-release-recapture-data
#9
Daniel Antunes Maciel Villela, Gabriela de Azambuja Garcia, Rafael Maciel-de-Freitas
BACKGROUND: Experiments involving mosquito mark-release-recapture (MRR) design are helpful to determine abundance, survival and even recruitment of mosquito populations in the field. Obstacles in mosquito MRR protocols include marking limitations due to small individual size, short lifespan, low efficiency in capturing devices such as traps, and individual removal upon capture. These limitations usually make MRR analysis restricted to only abundance estimation or a combination of abundance and survivorship, and often generate a great degree of uncertainty about the estimations...
June 26, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28650844/long-term-persistence-of-hcv-ns5a-resistance-associated-substitutions-after-treatment-with-the-hcv-ns5a-inhibitor-ledipasvir-without-sofosbuvir
#10
David Wyles, Alessandra Mangia, Wendy Cheng, Stephen Shafran, Christian Schwabe, Wen Ouyang, Charlotte Hedskog, John McNally, Diana M Brainard, Brian P Doehle, Evguenia Svarovskaia, Michael D Miller, Hongmei Mo, Hadas Dvory-Sobol
BACKGROUND: Data on persistence of NS5A resistance associated substitutions (RASs) may have implications for resistance testing approaches and selection of initial and retreatment strategies. METHODS: Long-term persistence of NS5A RASs in HCV genotype (GT) 1 infected subjects (n=76) who did not achieve sustained virologic response after receiving ledipasvir (LDV) without sofosbuvir (SOF) and were subsequently enrolled in an ongoing 3-year follow-up registry study was investigated by population or deep sequencing...
June 26, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28650835/a-new-representation-in-pso-for-discretization-based-feature-selection
#11
Binh Tran, Bing Xue, Mengjie Zhang
In machine learning, discretization and feature selection (FS) are important techniques for preprocessing data to improve the performance of an algorithm on high-dimensional data. Since many FS methods require discrete data, a common practice is to apply discretization before FS. In addition, for the sake of efficiency, features are usually discretized individually (or univariate). This scheme works based on the assumption that each feature independently influences the task, which may not hold in cases where feature interactions exist...
June 23, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28650765/oldest-mummified-case-of-hallux-valgus-from-ancient-egypt
#12
Albert Isidro, Assumpció Malgosa
Hallux valgus is the most common orthopedic problem of the adult foot. The etiology can be congenital, associated with the occurrence of metatarsus primus varus, or acquired, which is closely related to wearing ill-fitting shoes. Hallux valgus occurs almost exclusively in shod societies and, therefore, is a very uncommon finding in archaeological remains. We present a partial first ray of the left foot belonging to a dismembered Egyptian mummy recovered in the necropolis of Sharuna (Middle Egypt) and dated to the end of the Old Kingdom (circa 2100 BC)...
May 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28650703/program-implementation-of-option-b%C3%A2-at-a-president-s-emergency-plan-for-aids-relief-supported-hiv-clinic-improves-clinical-indicators-but-not-retention-in-care-in-mbarara-uganda
#13
Kathleen Miller, Winnie Muyindike, Lynn T Matthews, Michael Kanyesigye, Mark J Siedner
2013 WHO guidelines for prevention of mother to child transmission recommend combination antiretroviral therapy (ART) for all pregnant women, regardless of CD4 count (Option B/B+). We conducted a retrospective analysis of data from a government-operated HIV clinic in Mbarara, Uganda before and after implementation of Option B+ to assess the impact on retention in care. We limited our analysis to women not on ART at the time of their first reported pregnancy with CD4 count >350. We fit regression models to estimate relationships between calendar period (Option A vs...
June 26, 2017: AIDS Patient Care and STDs
https://www.readbyqxmd.com/read/28650664/the-dynamical-transition-of-lipid-multi-lamellar-bilayers-as-a-matter-of-cooperativity
#14
Judith Peters, Jérémie Marion, Francesca Natali, Efim Kats, Dominique J Bicout
The present study is the application of a two-state model formerly developed by Bicout, D.J. and and Zaccai, G., Biophys J 2001, 80 (3), 1115-23 1 to describe the dynamical transition exhibited in the atomic mean square displacements of biological samples in terms of dynamic and thermodynamic parameters. Data were obtained by elastic incoherent neutron scattering on 1,2-dimyristoyl-sn-glycero-3-phosphocholine lipid membranes in various hydration states and on one partially per-deuterated lipid membrane. Fitting the data with the model allowed investigating which parts of lipid molecules were mainly involved in the dynamical transition, heads, tails or both...
June 26, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28650648/indian-ocean-dipole-and-cryptosporidiosis-in-australia-short-term-and-nonlinear-associations
#15
Aparna Lal, Masahiro Hashizume, Simon Hales
The Indian Ocean Dipole (IOD) is a global climate phenomenon that influences the spread of human infectious diseases through climate extremes including droughts and floods. The Dipole Mode Index (DMI), which measures the strength of the IOD, is one of the main indicators of rainfall variability across Australia. Using an ecological, time-series approach we examined the short-term and nonlinear relationship between the DMI and weekly cryptosporidiosis reported from 2001 to 2012 across the temperate, subtropical, and tropical climate zones in Australia, controlling for season, long-term trends, and cryptosporidiosis counts from the past week...
June 26, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28650458/duplicated-pollen-pistil-recognition-loci-control-intraspecific-unilateral-incompatibility-in-brassica-rapa
#16
Yoshinobu Takada, Kohji Murase, Hiroko Shimosato-Asano, Takahiro Sato, Honoka Nakanishi, Keita Suwabe, Kentaro K Shimizu, Yong Pyo Lim, Seiji Takayama, Go Suzuki, Masao Watanabe
In plants, cell-cell recognition is a crucial step in the selection of optimal pairs of gametes to achieve successful propagation of progeny. Flowering plants have evolved various genetic mechanisms, mediated by cell-cell recognition, to enable their pistils to reject self-pollen, thus preventing inbreeding and the consequent reduced fitness of progeny (self-incompatibility, SI), and to reject foreign pollen from other species, thus maintaining species identity (interspecific incompatibility)(1). In the genus Brassica, the SI system is regulated by an S-haplotype-specific interaction between a stigma-expressed female receptor (S receptor kinase, SRK) and a tapetum cell-expressed male ligand (S locus protein 11, SP11), encoded by their respective polymorphic genes at the S locus(2-6)...
June 26, 2017: Nature Plants
https://www.readbyqxmd.com/read/28650433/the-evening-complex-coordinates-environmental-and-endogenous-signals-in-arabidopsis
#17
Daphne Ezer, Jae-Hoon Jung, Hui Lan, Surojit Biswas, Laura Gregoire, Mathew S Box, Varodom Charoensawan, Sandra Cortijo, Xuelei Lai, Dorothee Stöckle, Chloe Zubieta, Katja E Jaeger, Philip A Wigge
Plants maximize their fitness by adjusting their growth and development in response to signals such as light and temperature. The circadian clock provides a mechanism for plants to anticipate events such as sunrise and adjust their transcriptional programmes. However, the underlying mechanisms by which plants coordinate environmental signals with endogenous pathways are not fully understood. Using RNA-sequencing and chromatin immunoprecipitation sequencing experiments, we show that the evening complex (EC) of the circadian clock plays a major role in directly coordinating the expression of hundreds of key regulators of photosynthesis, the circadian clock, phytohormone signalling, growth and response to the environment...
June 26, 2017: Nature Plants
https://www.readbyqxmd.com/read/28650408/objective-effects-of-breast-reduction-surgery-on-physical-fitness
#18
Jennifer A Knox, D Alan Nelson, Kerry P Latham, Lianne M Kurina
BACKGROUND: Reduction mammaplasty is known for excellent outcomes and patient satisfaction. Although patients report improvements in pain, weight loss, and exercise levels, objective data on physical fitness benefits are limited. METHODS: Using the Stanford Military Data Repository, we identified 89 US Army active duty women with at least 1 pre- and postoperative Army Physical Fitness Test (APFT) who underwent reduction mammaplasty during 2011 to 2014. We used paired t tests to compare pre- and postoperative APFT score means and raw values for push-ups, sit-ups, and the 2-mile run...
June 23, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28650380/high-levels-of-post-migration-hiv-acquisition-within-nine-european-countries
#19
Debora Alvarez-Del Arco, Fakoya Ibidun, Christos Thomadakis, Nikos Pantazis, Giota Touloumi, Anne-Francoise Gennotte, Freke Zuure, Henrique Barros, Cornelia Staehelin, Siri Göpel, Christoph Boesecke, Tullio Prestileo, Alain Volny-Anne, Fiona Burns, Julia Del Amo
OBJECTIVE: We aimed to estimate the proportion of post-migration HIV acquisition among HIV-positive migrants in Europe. DESIGN: To reach HIV positive migrants we designed a cross sectional study performed in HIV clinics. METHODS: The study was conducted from July 2013-July 2015 in 57 clinics (9 European countries, targeting individuals over 18 years diagnosed in the preceding 5 years and born abroad. Electronic questionnaires supplemented with clinical data were completed in any of 15 languages...
June 23, 2017: AIDS
https://www.readbyqxmd.com/read/28650351/changes-in-health-and-fitness-in-firefighter-recruits-an-observational-cohort-study
#20
David J Cornell, Stacy L Gnacinski, Barbara B Meyer, Kyle T Ebersole
PURPOSE: To observe longitudinal changes in health and fitness among firefighter recruits. METHODS: Body composition, aerobic capacity, muscular power, muscular strength, and muscular endurance measures were longitudinally collected among 27 male firefighter recruits (mean ± SD, age = 29.9 ± 4.1 yrs; height = 179.8 ± 4.6 cm; body mass = 87.2 ± 9.7 kg) at the beginning (W1) and end (W14) of their firefighter training academy, as well as at the end of their probationary period (W38)...
June 22, 2017: Medicine and Science in Sports and Exercise
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