regression analysis with dummy variables in r
báo cáo hóa học:" Variables that influence HIV-1 cerebrospinal fluid viral load in cryptococcal meningitis: a linear regression analysis" pot
... K, Singer EJ, Nagra RM, Russell JJ,Tourtellotte WW: Quantifying HIV-1 RNA using polimerasechain reaction on cerebrospinal fluid and serum of seroposi-tive individuals with and without neurologic ... writing of the manuscript.AMC was responsible for the proceedings performed in the Virology Unit, and was co-writer of the manuscript.HR was responsible for patient enrolment. AA and RNwere ... ofcytokines in cryptococcal meningitis may further clarifythe factors that determine CSF HIV-1 viral load in thiscontext.Third, our results are representative only of patients with meningitis...
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Báo cáo khoa học: Nigrocin-2 peptides from Chinese Odorrana frogs – integration of UPLC/MS/MS with molecular cloning in amphibian skin peptidome analysis pot
... from Odorrana livida; nigrocin-2SCa, 2SCb and 2SCc are fromOdorrana schmackeri; nigrocin-2VB is from Odorrana versabilis.Note that nigrocin-2LVa is of identical primary structure to nigrocin-2N ... and structural characterization ofnigrocins from reverse-phase HPLC fractions ofskin secretionsWe previously reported our standard approach toidentify and structurally characterize frog venompeptides ... cDNAsfrom skin secretion-derived cDNA librariesNigrocin-2-related peptide precursor cDNAs were con-sistently cloned from each skin secretion-derivedlibrary. A single transcript was amplified from theP....
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báo cáo hóa học: "Quantitative gait analysis under dual-task in older people with mild cognitive impairment: a reliability study" doc
... assessing cognitively impaired older adults istheir potential inability to perform dual-tasking properly,thereby increasing measurement error. Therefore, ourobjective was to determine the reliability ... dual-task performance with increase activity in prefrontal areas, cingulate, parietal andpremotor areas[34,35]. Therefore, we postulate that thoseregions may have a control on gait in older individuals. ... individuals. In line with previous studies, our results support the hypoth-esis that occupying these areas with concurrent cognitiveprocessing (dual-tasking) may result in a brain resourcelimitation...
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báo cáo hóa học:" Mapping of the EQ-5D index from clinical outcome measures and demographic variables in patients with coronary heart disease" pptx
... interaction term was not significant.AFS appeared to provide greater error reduction and toexplain more variability in the EQ-5D index when theACRE data were removed. Other interaction terms ... (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduc-tion in any medium, provided the original work is properly cited.ResearchMapping of the EQ-5D index from clinical ... validation dataset. Forward ordinary least squares linear regression methods and measures of prediction error were used to build a model to map to the EQ-5D index. Age, sex, a proxy measure of disease...
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Báo cáo hóa học: " Hop-distance relationship analysis with quasi-UDG model for node localization in wireless sensor networks" pdf
... R b− R, d) − π (R b− R) 2) R < d ≤ R 2dπRR2b(1−α)( 2R 2b− R R) (R b, R b− R, d) − (R b, R b− R, d) R < d ≤ 2R b− R 2dπRR2b(1−α)( 2R 2b− R R) (R b, R b− R, d) 2R b− ... 1ddr(13)ã For1+2 R < d R :(d)=Rd0h1 (r) r01 R l 1d dr+dRRdh1 (r) r01 R l 1ddr+d +R dRh1 (r) r(1+11 R l 1d )d r +d +R d +R h1 (r) r01 R l ... 2R b(19)fDC(d)=4dπ (R b R) 2arccosd2 (R b R) −4d2π (R b R) 44 (R b− R) 2− d2s. t.0< d ≤ 2 ·( R b− R )(20)where Λ (R, r, d) is given by (R, r, d) =R 2arccos R 2+d2 r 22dR+ r 2arccos r 2+d2 R 22dr−12((r...
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Báo cáo hóa học: " Supporting QoS in MANET by a Fuzzy Priority Scheduler and Performance Analysis with Multicast Routing Protocols" docx
... number of groups increases. Since themesh becomes more massive with the growth of members,more redundant routes are formed. In ODMRP, as the num-ber of receivers increases, the number of forwarding ... differences in thealgorithms are in assigning priority between data packets. In no-priority scheduling, both control and data packets areserved in FIFO order. In the priority scheduling, control ... servicing order of packets in the queue. Greedy and round-robin scheduling show littledifference in performance compared to FPS. In case of greedyscheduling, looking at the performance of individual...
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Báo cáo hóa học: " Analysis of Minute Features in Speckled Imagery with Maximum Likelihood Estimation" pdf
... whenever there are al-ternatives for implementing ML estimators, and reducedsensitivity to in uent observations is desired.3. ALGORITHMS FOR INFERENCEThe routines here reported were used as provided ... ground features was retrieved in anSAR image.As for future work, ML estimation of the parameters ofpolarimetric distributions for SAR data based on the alter-nated algorithm proposed here ... universalmodel for speckled imagery, this work concentrates on MLinference of the parameters of this distribution. The liter-ature reports severe numerical problems when estimatingthese parameters,...
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Báo cáo y học: "Attenuation of inflammatory polyarthritis in TNF transgenic mice by diacerein: comparative analysis with dexamethasone, methotrexate and anti-TNF protocols" docx
... significantly reduced clinical scores compared R6 7 with those in untreated mice (Fig. 1). Whereas the clinicalarthritis score increased progressively in the controlgroups, the score was less in all groups ... shown are derived from one representative fromthree independent experiments. *P < 0.05 versus untreated or water forinjection (WFI) treated Tg197 control groups. AS, arthritis score. IntroductionRheumatoid ... patients with RA should beexamined further.Competing interestsThis work was supported in part by a research grant fromLaboratoire Medidom S.A. Dr Peter Fernandes who is aco-author in the present...
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Báo cáo khoa học: "Weak expression of cyclooxygenase-2 is associated with poorer outcome in endemic nasopharyngeal carcinoma: analysis of data rom randomized trial between radiation alone versus concurrent chemo-radiation (SQNP-01)" pdf
... breastcancers which were estrogen-receptor positive and treatedby breast conserving surgery and radiotherapy, and rectalcancers which received preoperative radiotherapy. Toallow us to more ... staining; 5–8, moderate staining;and 9–12, strong staining. For the purpose of statistical analysis, the cohort was grouped into tumors with negli-gible or weak staining (N = 34) versus tumors ... specifically in those with certain tumour char-acteristics and having underwent specific treatmentmodality. These were chiefly prostate tumors treated byradiotherapy and short-term hormonal treatment,...
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Báo cáo khoa học: " Breast-conserving surgery with or without radiotherapy in women with ductal carcinoma in situ: a meta-analysis of randomized trials" ppt
... cause,ipsilateral recurrence was defined as recurrence of invasiveor DCIS breast cancer at same breast treated by RT andcontralateral breast cancer recurrence was defined asrecurrence in the breast ... contralateralbreast cancers occurring as first events (13 in the no fur-ther treatment group vs 19 in the radiotherapy group)were included. However, when all contralateral breastcancers were included ... cancer recurrenceFigure 6Meta -analysis examining adjuvant radiotherapy in DCIS for patients with breast cancer: contralateral breast cancer recurrence. Publish with BioMed Central and every scientist...
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Báo cáo y học: "Cross-sectional analysis of adverse outcomes in 1,029 pregnancies of Afro-Caribbean women in Trinidad with and without systemic lupus erythematosus" ppsx
... Dr Marilyn Suite, Dr Kim Basdeo Maharaj, Dr Leslie Roberts, Dr Deepak Mahabir, Dr Rajiv Serrano, Prof Hylton McFarlane, Dr Zinora Asgaralli, Ms Arlene Damanie, Dr Peter Poon King, Dr Richard ... miscarriage (17.6%), this misreporting might suggestthat the higher pregnancy loss rate in our study could beexplained by a higher proportion of induced abortion in thisage group. Our findings ... giv-ing a crude SLE prevalence of approximately 219 per 100,000 in females in Trinidad.Health services in Trinidad are mainly public sector with someprivate hospitals and clinics. Primary healthcare...
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Báo cáo y học: "Analysis of bacterial DNA in synovial tissue of Tunisian patients with reactive and undifferentiated arthritis by broad-range PCR, cloning and sequencing" pps
... issue, using broad-rangePCR and/or reverse transcription PCR systems to search forbacterial DNA and RNA in synovial samples from patients with various forms of arthritis, including ReA [12,14,17]. ... Reactive arthritis. Best Pract Res ClinRheumatol 2004, 18:689-703.4. Hannu T, Inman R, Granfors K, Leirisalo-Repo M: Reactive arthri-tis or post-infectious arthritis? Best Pract Res Clin Rheumatol2006, ... unclear.IntroductionBacteria are considered to be important in the pathogenesisof several forms of arthritis, including reactive arthritis (ReA)[1] or various other forms of post-infectious arthritis [2]. ReAis...
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Báo cáo khoa hoc:"Regression markers with uncertain allele transmission for QTL mapping in half-sib designs" ppsx
... marker transmission results in increased standarderror for the regression coefficients. This study has provided further insight intoproperties of the test statistic for ... included in the analysis. Inclusion of offspring with incom-plete marker information in QTL mapping results in higher statistical powerand lower standard errors and bias ... yield similar results when fitting moremarkers and searching for a QTL among marker brackets on the chromosome.When regression is performed on multiple markers, MRM amounts...
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Báo cáo khoa hoc:" Simulation analysis to test the influence of model adequacy and data structure on the estimation of genetic parameters for traits with direct and maternal effects" ppsx
... occurring, were only ensured by linksires. By and large, a part of the males and females were randomly matedwithin-flock (within-flock mating), the other part being randomly mated with reproducers ... weresimulated for offspring according to N(0, σ2E) for direct effects and N(0, σ2C)for maternal environmental effect. Residuals corresponding to records of damswere independent from residuals ... thecorresponding (co)variances are presented in Table I.For the base population (which represents founder parents), random effectswere sampled from normal distributions with zero mean and variances...
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báo cáo khoa học: "The analysis of quantitative variation in natural populations with isofemale strains" pptx
... werecalculated using the following equation derived from (3) :The standard errors for these heritability estimates were obtained from the standarderrors of the intraclass ... levelsfrom F tests.Heritabilities and standard errors for the sib analysis were estimated according tothe methods in FALCONER (1981). Intraclass correlations (t) were obtained ... University,Bundoora 3083, Victoria, AustraliaSummaryIsofemale strains are having an increasing role in the analysis of variability of ecological andbehavioural traits in natural populations....
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- use of dummy variables in multiple linear regression
- use of dummy variables in multiple regression
- use of dummy variables in regression
- use of dummy variables in regression equations
- use of dummy variables in regression analysis
- dummy variables in regression analysis
- dummy variables in regression analysis spss
- dummy variables in regression analysis ppt
- importance of dummy variables in regression analysis
- example of dummy variables in regression analysis
- discuss the use of dummy variables in regression analysis
- the use of dummy variables in regression analysis
- regression analysis with dummy variables in sas
- dummy variables in multiple regression analysis
- interpreting dummy variables in regression analysis
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