Journal of biometrics & biostatistics最新文献_第8页

Cholera, Iron and Mental Illness in Nineteenth-Century Saint John, NB 19世纪的霍乱、铁与精神疾病

Journal of biometrics & biostatistics Pub Date : 2017-04-25 DOI: 10.4172/2155-6180.1000341

Paul Te Cusacki

引用次数: 3

More on the Robust Solution for Epidemiology: Nineteenth-CenturyQuebec 更多关于流行病学的有力解决方案:19世纪的魁北克

Journal of biometrics & biostatistics Pub Date : 2017-04-25 DOI: 10.4172/2155-6180.1000342

Paul Te Cusacki

引用次数: 2

Comparisons of Modeling Approaches for Evaluating the LongitudinalAssociation in a Clustered Healthcare Intervention Study 集群医疗干预研究中评估纵向关联的建模方法的比较

Journal of biometrics & biostatistics Pub Date : 2017-04-25 DOI: 10.4172/2155-6180.1000340

Yulan Liang

{"title":"Comparisons of Modeling Approaches for Evaluating the LongitudinalAssociation in a Clustered Healthcare Intervention Study","authors":"Yulan Liang","doi":"10.4172/2155-6180.1000340","DOIUrl":"https://doi.org/10.4172/2155-6180.1000340","url":null,"abstract":"This paper addresses methodology issues related to evidence-based healthcare research, specifically when evaluating and analyzing the hospital practice environments (HPE) impacts on the patient health outcomes are conducted in longitudinal intervention survey studies. HPE include the spatially clustered hospital characteristics, including practice environment scale (PES) measures, hospital facilities, nursing staffing and nursing attributes. The longitudinal associations between HPE and patient smoking cessation counseling (SCC) activities, and patient heart failure (HF) outcomes are examined. Various longitudinal and hierarchical modeling are compared including linear mixed models with restricted maximum likelihood estimation, generalized estimating equations with quasi-likelihood estimation, hierarchical linear regression models with nonparametric generalized least squares estimations, and repeated ANOVA. Moreover, both pre-modeling including the items/dimension reduction issues for longitudinal item-response hospital survey data and post-modeling (the mediation analysis) are discussed and conducted. Results show some methodology and solution differences when including the spatial or temporal correlations of HPE simultaneously for examining the longitudinal effects of HPE on HF core outcome measures adjusted or potentially mediated by SCC and nurse staffing environmental variables. This may have implications and potential impact for healthcare decision-making. Patients can benefit from these research findings.","PeriodicalId":87294,"journal":{"name":"Journal of biometrics & biostatistics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49188247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A New Method for Analysis of Biomolecules Using the BSM-SG Atomic Models BSM-SG原子模型分析生物分子的新方法

Journal of biometrics & biostatistics Pub Date : 2017-04-03 DOI: 10.4172/2155-6180.1000339

S. Sargoytchev

{"title":"A New Method for Analysis of Biomolecules Using the BSM-SG Atomic Models","authors":"S. Sargoytchev","doi":"10.4172/2155-6180.1000339","DOIUrl":"https://doi.org/10.4172/2155-6180.1000339","url":null,"abstract":"Biomolecules and particularly proteins and DNA exhibit some mysterious features that cannot find satisfactory explanation by quantum mechanical modes of atoms. One of them, known as a Levinthal’s paradox, is the ability to preserve their complex three-dimensional structure in appropriate environments. Another one is that they possess some unknown energy mechanism. The Basic Structures of Matter Supergravitation Unified Theory (BSM-SG) allows uncovering the real physical structures of the elementary particles and their spatial arrangement in atomic nuclei. The resulting physical models of the atoms are characterized by the same interaction energies as the quantum mechanical models, while the structure of the elementary particles influence their spatial arrangement in the nuclei. The resulting atomic models with fully identifiable parameters and angular positions of the quantum orbits permit studying the physical conditions behind the structural and bonding restrictions of the atoms connected in molecules. A new method for a theoretical analysis of biomolecules is proposed. The analysis of a DNA molecule leads to formulation of hypotheses about the energy storage mechanism in DNA and its role in the cell cycle synchronization. This permits shedding a light on the DNA feature known as a C-value paradox. The analysis of a tRNA molecule leads to formulation of a hypothesis about a binary decoding mechanism behind the 20 flavors of the complex aminoacyle-tRNA synthetases - tRNA, known as a paradox.","PeriodicalId":87294,"journal":{"name":"Journal of biometrics & biostatistics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4172/2155-6180.1000339","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48990784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On Finding the Upper Confidence Limit for a Binomial Proportion when Zero Successes are Observed 零成功情况下二项比例的置信上限求解

Journal of biometrics & biostatistics Pub Date : 2017-03-30 DOI: 10.4172/2155-6180.1000338

Courtney E. McCracken, S. Looney

引用次数: 11

Comparison of the Hemoglobin Amount between Old and Young Persons in Bosnia and Herzegovina 波斯尼亚和黑塞哥维那老年人和青年人血红蛋白含量的比较

Journal of biometrics & biostatistics Pub Date : 2017-03-21 DOI: 10.4172/2155-6180.1000337

Senol Dogan, Esra Mermer

{"title":"Comparison of the Hemoglobin Amount between Old and Young Persons in Bosnia and Herzegovina","authors":"Senol Dogan, Esra Mermer","doi":"10.4172/2155-6180.1000337","DOIUrl":"https://doi.org/10.4172/2155-6180.1000337","url":null,"abstract":"Hemoglobin is a unique protein, which is responsible for oxygen and carbon dioxide transportation all the body. The protein location is inside the erythrocytes and the special oval shape makes it easily pass through blood walls to supply oxygen to the tissues and organs. It is supposed that the hemoglobin amount could change depending on the person`s age, gender or nationality. We designed a research to see the molecular differences among Bosnian and Turkish young person`s whose age interval is 18-23 and old person`s age interval is 43-65. Totally 300 person`s, 50 from each Bosnian/ Turkish Female/Male and 50 old male and 50 old female were selected for the research. The students` the hemoglobin amount has been recorded individually and presented in a table. As a result of the measurement, The Turkish females average has the lowest hemoglobin Turkish males average shows the maximum amount of hemoglobin, 12.01 g/dl and 14.65 g/dl respectively. When the female gets older their the hemoglobin amount increase in their blood, 7.3% in Bosnian and 12.2% in Turkish. On the other side, the male blood the hemoglobin amount is almost similar by aging, Bosnian male hemoglobin just increase 0.74%, but in Turkish male 1.3% decrease. The result shows that female the hemoglobin amount is affected by age more than male.","PeriodicalId":87294,"journal":{"name":"Journal of biometrics & biostatistics","volume":" ","pages":"0-0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4172/2155-6180.1000337","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47841302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Misconceptions and Perceptions on Breast Cancer Risk in Kilifi SouthSubcounty 基利菲南亚县对乳腺癌风险的误解和认识

Journal of biometrics & biostatistics Pub Date : 2017-02-24 DOI: 10.4172/2155-6180.1000336

L. Alii

引用次数: 0

Methods for Analysis of Pre-Post Data in Clinical Research: A Comparison of Five Common Methods. 临床研究前后数据分析的方法:五种常用方法的比较。

Journal of biometrics & biostatistics Pub Date : 2017-02-24 DOI: 10.4172/2155-6180.1000334

Nathaniel S O'Connell, Lin Dai, Yunyun Jiang, Jaime L Speiser, Ralph Ward, Wei Wei, Rachel Carroll, Mulugeta Gebregziabher

{"title":"Methods for Analysis of Pre-Post Data in Clinical Research: A Comparison of Five Common Methods.","authors":"Nathaniel S O'Connell, Lin Dai, Yunyun Jiang, Jaime L Speiser, Ralph Ward, Wei Wei, Rachel Carroll, Mulugeta Gebregziabher","doi":"10.4172/2155-6180.1000334","DOIUrl":"https://doi.org/10.4172/2155-6180.1000334","url":null,"abstract":"<p><p>Often repeated measures data are summarized into pre-post-treatment measurements. Various methods exist in the literature for estimating and testing treatment effect, including ANOVA, analysis of covariance (ANCOVA), and linear mixed modeling (LMM). Under the first two methods, outcomes can either be modeled as the post treatment measurement (ANOVA-POST or ANCOVA-POST), or a change score between pre and post measurements (ANOVA-CHANGE, ANCOVA-CHANGE). In LMM, the outcome is modeled as a vector of responses with or without Kenward-Rogers adjustment. We consider five methods common in the literature, and discuss them in terms of supporting simulations and theoretical derivations of variance. Consistent with existing literature, our results demonstrate that each method leads to unbiased treatment effect estimates, and based on precision of estimates, 95% coverage probability, and power, ANCOVA modeling of either change scores or post-treatment score as the outcome, prove to be the most effective. We further demonstrate each method in terms of a real data example to exemplify comparisons in real clinical context.</p>","PeriodicalId":87294,"journal":{"name":"Journal of biometrics & biostatistics","volume":"8 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2017-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4172/2155-6180.1000334","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36787378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 106

On the Relation between the Comprehension Ability and the NeocortexVerbal Areas 论理解能力与新语言领域的关系

Journal of biometrics & biostatistics Pub Date : 2017-01-30 DOI: 10.4172/2155-6180.1000331

A. Michaud

引用次数: 1

Relative Biochemical Basis of Susceptibility in Commercial WheatVarieties against Angoumois Grain Moth, Sitotroga cerealella (Olivier) andConstruction of its Life Table 商品小麦品种对安谷蛾、西氏灰蛾敏感性的相对生化基础及其生命表的构建

Journal of biometrics & biostatistics Pub Date : 2017-01-30 DOI: 10.4172/2155-6180.1000333

M. SafianMurad, Z. Batool

{"title":"Relative Biochemical Basis of Susceptibility in Commercial WheatVarieties against Angoumois Grain Moth, Sitotroga cerealella (Olivier) andConstruction of its Life Table","authors":"M. SafianMurad, Z. Batool","doi":"10.4172/2155-6180.1000333","DOIUrl":"https://doi.org/10.4172/2155-6180.1000333","url":null,"abstract":"A study was conducted to evaluate the relative biochemical basis of susceptibility of six commercial wheat varieties grown in Khyber Pakhtunkhwa, Pakistan, against angoumois grain moth, Sitotroga cerealella (Olivier) (Lepidoptera: Gelechiidae) and construction of its life table at 28 ± 1°C, 65 ± 5 R.H.% and L:D 16:8 hours under laboratory environment. The results were evaluated on the basis of mean pest S. cerealella emergence, percent damage, and percent weight loss, male and female emerged along susceptibility index, 1000 grains weight, hardness and chemical composition of test wheat materials. Life table parameters of S. cerealella on highly susceptible and least susceptible wheat varieties were compared. On the basis of susceptibility index, variety Sirin (5.002) was recorded least susceptible and variety Pirsbak-2005 (7.832) recorded as highly susceptible. The chemical composition based on protein and carbohydrate contents (11.15%, 72.54%) revealed that the variety Sirin was recorded least susceptible, while variety Pirsabak-2005 (12.68%, 75.00%) was noted as highly susceptible. On the basis of life table, the net reproductive rate (10.9) on variety Pirsabak-2005 was higher than variety Sirin (9.4), and the intrinsic rate of increase was also higher on Pirsabak-2005 (30.7) than Sirin (15.9). With respect to doubling time being index of resistance, this time in Pirsabak-2005 was almost half (0.01 days) of the Sirin (0.02 days), which means that S. cerealella can develop more quickly on Pirsabak-2005 germplasm. In summation, relatively least susceptible wheat variety Sirin can be used to increase the level and diversify the basis of resistance to S. cerealella in the resistance breeding programs.","PeriodicalId":87294,"journal":{"name":"Journal of biometrics & biostatistics","volume":" ","pages":"0-0"},"PeriodicalIF":0.0,"publicationDate":"2017-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49341285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2