1
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Walter SD, Balakrishnan N, Song G. Reply to Cochrane STATISTICAL METHODS GROUP. J Clin Epidemiol 2024:111358. [PMID: 38599325 DOI: 10.1016/j.jclinepi.2024.111358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 04/03/2024] [Indexed: 04/12/2024]
Affiliation(s)
- Stephen D Walter
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada.
| | | | - Ge Song
- Department of Mathematics and Statistics, McMaster University, Hamilton, Ontario, Canada
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Karunakaran KB, Jain S, Brahmachari SK, Balakrishnan N, Ganapathiraju MK. Author Correction: Parkinson's disease and schizophrenia interactomes contain temporally distinct gene clusters underlying comorbid mechanisms and unique disease processes. Schizophrenia (Heidelb) 2024; 10:33. [PMID: 38480791 PMCID: PMC10937628 DOI: 10.1038/s41537-024-00455-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/17/2024]
Affiliation(s)
- Kalyani B Karunakaran
- Supercomputer Education and Research Centre, Indian Institute of Science, Bangalore, Karnataka, India.
- Institute for the Advanced Study of Human Biology, Kyoto University, Kyoto, Japan.
| | - Sanjeev Jain
- National Institute of Mental Health and Neuro-Sciences (NIMHANS), Bangalore, Karnataka, India.
| | - Samir K Brahmachari
- Academy of Scientific and Innovative Research, CSIR-4PI, Bangalore, Karnataka, India
| | - N Balakrishnan
- Supercomputer Education and Research Centre, Indian Institute of Science, Bangalore, Karnataka, India
| | - Madhavi K Ganapathiraju
- Department of Computer Science, Carnegie Mellon University Qatar, Doha, Qatar.
- Department of Biomedical Informatics, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
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Karunakaran KB, Jain S, Brahmachari SK, Balakrishnan N, Ganapathiraju MK. Parkinson's disease and schizophrenia interactomes contain temporally distinct gene clusters underlying comorbid mechanisms and unique disease processes. Schizophrenia (Heidelb) 2024; 10:26. [PMID: 38413605 PMCID: PMC10899210 DOI: 10.1038/s41537-024-00439-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 01/24/2024] [Indexed: 02/29/2024]
Abstract
Genome-wide association studies suggest significant overlaps in Parkinson's disease (PD) and schizophrenia (SZ) risks, but the underlying mechanisms remain elusive. The protein-protein interaction network ('interactome') plays a crucial role in PD and SZ and can incorporate their spatiotemporal specificities. Therefore, to study the linked biology of PD and SZ, we compiled PD- and SZ-associated genes from the DisGeNET database, and constructed their interactomes using BioGRID and HPRD. We examined the interactomes using clustering and enrichment analyses, in conjunction with the transcriptomic data of 26 brain regions spanning foetal stages to adulthood available in the BrainSpan Atlas. PD and SZ interactomes formed four gene clusters with distinct temporal identities (Disease Gene Networks or 'DGNs'1-4). DGN1 had unique SZ interactome genes highly expressed across developmental stages, corresponding to a neurodevelopmental SZ subtype. DGN2, containing unique SZ interactome genes expressed from early infancy to adulthood, correlated with an inflammation-driven SZ subtype and adult SZ risk. DGN3 contained unique PD interactome genes expressed in late infancy, early and late childhood, and adulthood, and involved in mitochondrial pathways. DGN4, containing prenatally-expressed genes common to both the interactomes, involved in stem cell pluripotency and overlapping with the interactome of 22q11 deletion syndrome (comorbid psychosis and Parkinsonism), potentially regulates neurodevelopmental mechanisms in PD-SZ comorbidity. Our findings suggest that disrupted neurodevelopment (regulated by DGN4) could expose risk windows in PD and SZ, later elevating disease risk through inflammation (DGN2). Alternatively, variant clustering in DGNs may produce disease subtypes, e.g., PD-SZ comorbidity with DGN4, and early/late-onset SZ with DGN1/DGN2.
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Affiliation(s)
- Kalyani B Karunakaran
- Supercomputer Education and Research Centre, Indian Institute of Science, Bangalore, India.
- Institute for the Advanced Study of Human Biology, Kyoto University, Kyoto, Japan.
| | - Sanjeev Jain
- National Institute of Mental Health and Neuro-Sciences (NIMHANS), Bangalore, India.
| | | | - N Balakrishnan
- Supercomputer Education and Research Centre, Indian Institute of Science, Bangalore, India
| | - Madhavi K Ganapathiraju
- Department of Computer Science, Carnegie Mellon University Qatar, Doha, Qatar.
- Department of Biomedical Informatics, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
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Ganguly A, Mitra D, Balakrishnan N, Kundu D. A flexible model based on piecewise linear approximation for the analysis of left truncated right censored data with covariates, and applications to Worcester Heart Attack Study data and Channing House data. Stat Med 2024; 43:233-255. [PMID: 37933206 DOI: 10.1002/sim.9954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 10/14/2023] [Accepted: 10/23/2023] [Indexed: 11/08/2023]
Abstract
Left truncated right censored (LTRC) data arise quite commonly from survival studies. In this article, a model based on piecewise linear approximation is proposed for the analysis of LTRC data with covariates. Specifically, the model involves a piecewise linear approximation for the cumulative baseline hazard function of the proportional hazards model. The principal advantage of the proposed model is that it does not depend on restrictive parametric assumptions while being flexible and data-driven. Likelihood inference for the model is developed. Through detailed simulation studies, the robustness property of the model is studied by fitting it to LTRC data generated from different processes covering a wide range of lifetime distributions. A sensitivity analysis is also carried out by fitting the model to LTRC data generated from a process with a piecewise constant baseline hazard. It is observed that the performance of the model is quite satisfactory in all those cases. Analyses of two real LTRC datasets by using the model are provided as illustrative examples. Applications of the model in some practical prediction issues are discussed. In summary, the proposed model provides a comprehensive and flexible approach to model a general structure for LTRC lifetime data.
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Affiliation(s)
- Ayon Ganguly
- Department of Mathematics, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Debanjan Mitra
- Quantitative Methods Division, Indian Institute of Management Udaipur, Udaipur, Rajasthan, India
| | | | - Debasis Kundu
- Department of Mathematics and Statistics, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India
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Siddique AA, Schnitzer ME, Balakrishnan N, Sotgiu G, Vargas MH, Menzies D, Benedetti A. Two-stage targeted maximum likelihood estimation for mixed aggregate and individual participant data analysis with an application to multidrug resistant tuberculosis. Stat Med 2024; 43:342-357. [PMID: 37985441 DOI: 10.1002/sim.9963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/17/2023] [Accepted: 11/07/2023] [Indexed: 11/22/2023]
Abstract
In this study, we develop a new method for the meta-analysis of mixed aggregate data (AD) and individual participant data (IPD). The method is an adaptation of inverse probability weighted targeted maximum likelihood estimation (IPW-TMLE), which was initially proposed for two-stage sampled data. Our methods are motivated by a systematic review investigating treatment effectiveness for multidrug resistant tuberculosis (MDR-TB) where the available data include IPD from some studies but only AD from others. One complication in this application is that participants with MDR-TB are typically treated with multiple antimicrobial agents where many such medications were not observed in all studies considered in the meta-analysis. We focus here on the estimation of the expected potential outcome while intervening on a specific medication but not intervening on any others. Our method involves the implementation of a TMLE that transports the estimation from studies where the treatment is observed to the full target population. A second weighting component adjusts for the studies with missing (inaccessible) IPD. We demonstrate the properties of the proposed method and contrast it with alternative approaches in a simulation study. We finally apply this method to estimate treatment effectiveness in the MDR-TB case study.
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Affiliation(s)
- Arman Alam Siddique
- Department of Mathematics and Statistics, McMaster University, Hamilton, Canada
| | - Mireille E Schnitzer
- Faculty of Pharmacy and the Department of Social and Preventive Medicine, Université de Montréal, Montreal, Canada
- Department of Epidemiology, Biostatistics & Occupational HealthMcGill University, Montreal, Canada
| | | | - Giovanni Sotgiu
- Clinical Epidemiology and Medical Statistics Unit, Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy
| | - Mario H Vargas
- Departamento de Investigación en Hiperreactividad Bronquial, Instituto Nacional de Enfermedades Respiratorias, Mexico City, Mexico
- Unidad de Investigación Médica en Enfermedades Respiratorias, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Dick Menzies
- Respiratory Epidemiology and Clinical Research Institute, McGill University Health Centre, Montreal, Canada
- Department of Medicine, McGill University, Montreal, Canada
| | - Andrea Benedetti
- Department of Epidemiology, Biostatistics & Occupational HealthMcGill University, Montreal, Canada
- Respiratory Epidemiology and Clinical Research Institute, McGill University Health Centre, Montreal, Canada
- Department of Medicine, McGill University, Montreal, Canada
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Haidari A, Sattari M, Kia (Barmalzan) GS, Balakrishnan N. MRL ordering of largest order statistics from heterogeneous scale variables. STATISTICS-ABINGDON 2023. [DOI: 10.1080/02331888.2023.2193407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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Balakrishnan N, Charalambides CA, Christofides TC, Koutras MV, Meintanis S. Preface to a Special Issue in Memory of Professor Theophilos Cacoullos. J Stat Theory Pract 2023. [DOI: 10.1007/s42519-022-00314-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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8
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Croft JFE, Jambrina PG, Aoiz FJ, Guo H, Balakrishnan N. Cold Collisions of Ro-Vibrationally Excited D 2 Molecules. J Phys Chem A 2023; 127:1619-1627. [PMID: 36787203 DOI: 10.1021/acs.jpca.2c08855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
The H2 + H2 system has long been considered a benchmark system for ro-vibrational energy transfer in bimolecular collisions. However, most studies thus far have focused on collisions involving H2 molecules in the ground vibrational level or in the first excited vibrational state. While H2 + H2/HD collisions have received wide attention due to the important role they play in astrophysics, D2 + D2 collisions have received much less attention. Recently, Zhou et al. [ Nat. Chem. 2022, 14, 658-663, DOI: 10.1038/s41557-022-00926-z] examined stereodynamic aspects of rotational energy transfer in collisions of two aligned D2 molecules prepared in the v = 2 vibrational level and j = 2 rotational level. Here, we report quantum calculations of rotational and vibrational energy transfer in collisions of two D2 molecules prepared in vibrational levels up to v = 2 and identify key resonance features that contribute to the angular distribution in the experimental results of Zhou et al. The quantum scattering calculations were performed in full dimensionality and using the rigid-rotor approximation using a recently developed highly accurate six-dimensional potential energy surface for the H4 system that allows descriptions of collisions involving highly vibrationally excited H2 and its isotopologues.
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Affiliation(s)
- James F E Croft
- The Dodd-Walls Centre for Photonic and Quantum Technologies, Dunedin 9016, New Zealand.,Department of Physics, University of Otago, Dunedin 9016, New Zealand
| | - Pablo G Jambrina
- Departamento de Química Física, Universidad de Salamanca, Salamanca 37008, Spain
| | - F Javier Aoiz
- Departamento de Química Física, Universidad Complutense, Madrid 28040, Spain
| | - Hua Guo
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - N Balakrishnan
- Department of Chemistry and Biochemistry, University of Nevada, Las Vegas, Nevada 89154, United States
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Jones MC, Balakrishnan N. A Slew of Mixture Relationships Involving Discrete and Continuous Generalized Hypergeometric Distributions and Their Special Cases. Stat (Int Stat Inst) 2023. [DOI: 10.1002/sta4.550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Affiliation(s)
- M. C. Jones
- Department of Mathematics and Statistics McMaster University Hamilton Ontario L8S 4K1 Canada
| | - N. Balakrishnan
- School of Mathematics and Statistics The Open University, Walton Hall Milton Keynes MK7 6AA United Kingdom
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Liu K, Balakrishnan N, He M, Xie L. Likelihood inference for Birnbaum–Saunders frailty model with an application to bone marrow transplant data. J STAT COMPUT SIM 2023. [DOI: 10.1080/00949655.2023.2174543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
- Kai Liu
- School of Statistics and Mathematics, Interdisciplinary Research Institute of Data Science, Shanghai Lixin University of Accounting and Finance, Shanghai, People's Republic of China
| | - N. Balakrishnan
- Department of Mathematics and Statistics, McMaster University, Hamilton, Ontario, Canada
| | - Mu He
- Department of Mathematical Sciences, Xi'an Jiaotong-Liverpool University, Suzhou, People's Republic of China
| | - Lingfang Xie
- School of Finance, Shanghai Lixin University of Accounting and Finance, Shanghai, People's Republic of China
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Roozegar R, Entezari M, Balakrishnan N, Nadarajah S. A new mixed δ-shock model and associated reliability properties. STOCH MODELS 2023. [DOI: 10.1080/15326349.2023.2166962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
| | | | - N. Balakrishnan
- Department of Mathematics and Statistics, McMaster University, Hamilton, Ontario, Canada
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Son K, Jamil R, Chowdhury A, Mukherjee M, Venegas C, Miyasaki K, Zhang K, Patel Z, Salter B, Yuen ACY, Lau KSK, Cowbrough B, Radford K, Huang C, Kjarsgaard M, Dvorkin-Gheva A, Smith J, Li QZ, Waserman S, Ryerson CJ, Nair P, Ho T, Balakrishnan N, Nazy I, Bowdish DME, Svenningsen S, Carlsten C, Mukherjee M. Circulating anti-nuclear autoantibodies in COVID-19 survivors predict long COVID symptoms. Eur Respir J 2023; 61:13993003.00970-2022. [PMID: 36137590 PMCID: PMC9515477 DOI: 10.1183/13993003.00970-2022] [Citation(s) in RCA: 44] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 08/04/2022] [Indexed: 01/17/2023]
Abstract
BACKGROUND Autoimmunity has been reported in patients with severe coronavirus disease 2019 (COVID-19). We investigated whether anti-nuclear/extractable-nuclear antibodies (ANAs/ENAs) were present up to a year after infection, and if they were associated with the development of clinically relevant post-acute sequalae of COVID-19 (PASC) symptoms. METHODS A rapid-assessment line immunoassay was used to measure circulating levels of ANAs/ENAs in 106 convalescent COVID-19 patients with varying acute phase severities at 3, 6 and 12 months post-recovery. Patient-reported fatigue, cough and dyspnoea were recorded at each time point. Multivariable logistic regression model and receiver operating curves were used to test the association of autoantibodies with patient-reported outcomes and pro-inflammatory cytokines. RESULTS Compared to age- and sex-matched healthy controls (n=22) and those who had other respiratory infections (n=34), patients with COVID-19 had higher detectable ANAs at 3 months post-recovery (p<0.001). The mean number of ANA autoreactivities per individual decreased between 3 and 12 months (from 3.99 to 1.55) with persistent positive titres associated with fatigue, dyspnoea and cough severity. Antibodies to U1-snRNP and anti-SS-B/La were both positively associated with persistent symptoms of fatigue (p<0.028, area under the curve (AUC) 0.86) and dyspnoea (p<0.003, AUC=0.81). Pro-inflammatory cytokines such as tumour necrosis factor (TNF)-α and C-reactive protein predicted the elevated ANAs at 12 months. TNF-α, D-dimer and interleukin-1β had the strongest association with symptoms at 12 months. Regression analysis showed that TNF-α predicted fatigue (β=4.65, p=0.004) and general symptomaticity (β=2.40, p=0.03) at 12 months. INTERPRETATION Persistently positive ANAs at 12 months post-COVID are associated with persisting symptoms and inflammation (TNF-α) in a subset of COVID-19 survivors. This finding indicates the need for further investigation into the role of autoimmunity in PASC.
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Affiliation(s)
- Kiho Son
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Rameen Jamil
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Abhiroop Chowdhury
- Department of Mathematics and Statistics, McMaster University, Hamilton, ON, Canada
- Equal contribution
| | - Manan Mukherjee
- Department of Mathematics and Statistics, McMaster University, Hamilton, ON, Canada
- Equal contribution
| | - Carmen Venegas
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Kate Miyasaki
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Kayla Zhang
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Zil Patel
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Brittany Salter
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Agnes Che Yan Yuen
- Department of Medicine and Centre for Heart Lung Innovation, University of British Columbia, Vancouver, BC, Canada
| | - Kevin Soon-Keen Lau
- Department of Medicine and Centre for Heart Lung Innovation, University of British Columbia, Vancouver, BC, Canada
| | | | - Katherine Radford
- Firestone Institute for Respiratory Health, The Research Institute of St Joes, St Joseph's Healthcare Hamilton, Hamilton, ON, Canada
| | - Chynna Huang
- Firestone Institute for Respiratory Health, The Research Institute of St Joes, St Joseph's Healthcare Hamilton, Hamilton, ON, Canada
| | - Melanie Kjarsgaard
- Firestone Institute for Respiratory Health, The Research Institute of St Joes, St Joseph's Healthcare Hamilton, Hamilton, ON, Canada
| | | | - James Smith
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Quan-Zhen Li
- Department of Immunology and Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Susan Waserman
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Christopher J Ryerson
- Department of Medicine and Centre for Heart Lung Innovation, University of British Columbia, Vancouver, BC, Canada
| | | | - Terence Ho
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | | | - Ishac Nazy
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Dawn M E Bowdish
- Department of Medicine, McMaster University, Hamilton, ON, Canada
- Firestone Institute for Respiratory Health, The Research Institute of St Joes, St Joseph's Healthcare Hamilton, Hamilton, ON, Canada
| | | | - Chris Carlsten
- Department of Medicine and Centre for Heart Lung Innovation, University of British Columbia, Vancouver, BC, Canada
| | - Manali Mukherjee
- Department of Medicine, McMaster University, Hamilton, ON, Canada
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Guo W, Balakrishnan N, He M. Envelope-based sparse reduced-rank regression for multivariate linear model. J MULTIVARIATE ANAL 2023. [DOI: 10.1016/j.jmva.2023.105159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Walter SD, Balakrishnan N. A method was developed for correcting the bias in the usual study weights in meta-analyses. J Clin Epidemiol 2022; 152:23-29. [PMID: 36150550 DOI: 10.1016/j.jclinepi.2022.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 08/10/2022] [Accepted: 08/29/2022] [Indexed: 01/25/2023]
Abstract
OBJECTIVES Our goal was to evaluate the bias in the usual method of estimating study weights in a meta-analysis and to develop a suitable bias correction. STUDY DESIGN AND SETTING In meta-analyses, it is standard practice to weight studies by the inverse variance of their treatment effects. Weights are usually calculated by taking reciprocals of the estimated variances, but we show that this approach is biased. We established an exact expression for the bias with continuous data, yielding a correction factor for the study weights that yields improved estimation of the treatment effect. RESULTS With the usual method, the weight for each study is always overestimated, particularly with small samples; also, the variance of the summary treatment effect is underestimated. Our correction yields an unbiased estimate of the summary treatment effect with minimum variance. We illustrate the bias numerically for various scenarios and show how it can substantially affect actual meta-analyses in practice. CONCLUSION We recommend that the standard method of obtaining study weights should be modified by our bias correction factor. Our method is simple and straightforward to apply. Elimination of this bias will enhance the validity of conclusions from a meta-analysis, compared with the situation when the standard weights are used.
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Affiliation(s)
- Stephen D Walter
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada.
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15
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Balakrishnan N. My musings on a pioneering work of Erich Lehmann and its rediscoveries on some families of distributions. COMMUN STAT-THEOR M 2022. [DOI: 10.1080/03610926.2021.1896003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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16
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Kharazmi O, Balakrishnan N. Information generating function for order statistics and mixed reliability systems. COMMUN STAT-THEOR M 2022. [DOI: 10.1080/03610926.2021.1881123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Omid Kharazmi
- Department of Statistics, Faculty of Mathematical Sciences, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran
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Balakrishnan N, Bhattacharya R. Simultaneous best linear invariant prediction of future order statistics for location-scale and scale families and associated optimality properties. STATISTICS-ABINGDON 2022. [DOI: 10.1080/02331888.2022.2144858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
| | - Ritwik Bhattacharya
- Department of Mathematical Sciences, University of Texas at El Paso, El Paso, TX, USA
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Vasquez JKJ, Rodrigues J, Balakrishnan N. A useful variance decomposition for destructive Waring regression cure model with an application to HIV data. COMMUN STAT-THEOR M 2022. [DOI: 10.1080/03610926.2020.1869782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Jonathan K. J. Vasquez
- Institute of Mathematics and Computer Sciences, University of São Paulo, São Carlos, SP, Brasil
| | - Josemar Rodrigues
- Institute of Mathematics and Computer Sciences, University of São Paulo, São Carlos, SP, Brasil
| | - N. Balakrishnan
- Department of Mathematics and Statistics, McMaster University, Hamilton, Ontario, Canada
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Lin CT, Wu YN, Balakrishnan N, Ling MH. OTL web interface: outlier testing in lifetime data. COMMUN STAT-SIMUL C 2022. [DOI: 10.1080/03610918.2022.2116748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Chien-Tai Lin
- Department of Mathematics, Tamkang University, New Taipei City, Taiwan
| | - Yu-Nan Wu
- Department of Mathematics, Tamkang University, New Taipei City, Taiwan
| | - N. Balakrishnan
- Department of Mathematics and Statistics, McMaster University, Hamilton, Ontario, Canada
| | - Man Ho Ling
- Department of Mathematics and Information Technology, The Education University of Hong Kong, Tai Po, Hong Kong SAR, China
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20
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Balakrishnan N, Kharazmi O. Cumulative past Fisher information measure and its extensions. BRAZ J PROBAB STAT 2022. [DOI: 10.1214/22-bjps539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
| | - Omid Kharazmi
- Department of Statistics, Faculty of Mathematical Sciences, Vali-e-Asr University of Rafsanjan, Iran
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Balakrishnan N, Jones M. Closure of beta and Dirichlet distributions under discrete mixing. Stat Probab Lett 2022. [DOI: 10.1016/j.spl.2022.109526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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22
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Zamani Z, Kharazmi O, Balakrishnan N. Information Generating Function of Record Values. Math Meth Stat 2022. [DOI: 10.3103/s1066530722030036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Amiri M, Balakrishnan N, Eftekharian A. Hessian orderings of multivariate normal variance-mean mixture distributions and their applications in evaluating dependent multivariate risk portfolios. STAT METHOD APPL-GER 2022. [DOI: 10.1007/s10260-021-00610-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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24
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Yi H, Cui L, Balakrishnan N. On the Derivative Counting Processes of First- and Second-order Aggregated Semi-Markov Systems. Methodol Comput Appl Probab 2022. [DOI: 10.1007/s11009-021-09896-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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25
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Kayal S, Bhakta R, Balakrishnan N. Some results on stochastic comparisons of two finite mixture models with general components. STOCH MODELS 2022. [DOI: 10.1080/15326349.2022.2107666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Suchandan Kayal
- Department of Mathematics, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Raju Bhakta
- Department of Mathematics, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - N. Balakrishnan
- Department of Mathematics and Statistics, McMaster University, Hamilton, Ontario, Canada
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26
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Fang L, Balakrishnan N, Huang W, Zhang S. Usual stochastic ordering of the sample maxima from dependent distribution‐free random variables. STAT NEERL 2022. [DOI: 10.1111/stan.12275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Longxiang Fang
- Department of Mathematics and Statistics Anhui Normal University Wuhu PR China
| | - N. Balakrishnan
- Department of Mathematics and Statistics McMaster University Hamilton Ontario Canada
| | - Wenyu Huang
- Department of Mathematics and Statistics Anhui Normal University Wuhu PR China
| | - Shuai Zhang
- Department of Mathematics and Statistics Anhui Normal University Wuhu PR China
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27
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Balakrishnan N, Rychtář J, Taylor D, Walter SD. Unified approach to optimal estimation of mean and standard deviation from sample summaries. Stat Methods Med Res 2022; 31:2087-2103. [PMID: 35818759 DOI: 10.1177/09622802221111546] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Recently, various methods have been developed to estimate the sample mean and standard deviation when only the sample size, and other selected sample summaries are reported. In this paper, we provide a unified approach to optimal estimation that can be easily adopted when only some summary statistics are reported. We show that the proposed estimators have the lowest variance among linear unbiased estimators. We also show that in the most commonly reported cases, that is, when only a three-number or five-number summary is reported, the newly proposed estimators match the previously developed estimators. Finally, we demonstrate the performance of the estimators numerically.
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Affiliation(s)
| | - Jan Rychtář
- Department of Mathematics and Applied Mathematics, 6889Virginia Commonwealth University, Richmond, VA , USA
| | - Dewey Taylor
- Department of Mathematics and Applied Mathematics, 6889Virginia Commonwealth University, Richmond, VA , USA
| | - Stephen D Walter
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
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28
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Wei Y, Liu S, Ling X, Balakrishnan N. Reliability optimization for series and parallel systems with series subsystem and comprising of dependent components under random shock environment. COMMUN STAT-THEOR M 2022. [DOI: 10.1080/03610926.2022.2093911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Yinzhao Wei
- School of Mathematics and Statistics, Xidian University, Xi’an, China
| | - Sanyang Liu
- School of Mathematics and Statistics, Xidian University, Xi’an, China
| | - Xiaoliang Ling
- College of Sciences, Hebei University of Science and Technology, Shijiazhuang, China
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29
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Esna-Ashari M, Balakrishnan N, Alimohammadi M. HR and RHR orderings of generalized order statistics. METRIKA 2022. [DOI: 10.1007/s00184-022-00865-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Amini-Seresht E, Kelkinnama M, Balakrishnan N. Comparing residual lifetimes and inactivity times of dependent random variables. COMMUN STAT-THEOR M 2022. [DOI: 10.1080/03610926.2022.2070764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
| | - Maryam Kelkinnama
- Department of Mathematical Sciences, Isfahan University of Technology, Isfahan, Iran
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31
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Barmalzan G, Kosari S, Akbar Hosseinzadeh A, Balakrishnan N. Ordering fail-safe systems having dependent components with Archimedean copula and exponentiated location-scale distributions. STATISTICS-ABINGDON 2022. [DOI: 10.1080/02331888.2022.2061488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ghobad Barmalzan
- Department of Statistics, University of Zabol, Zabol, Sistan and Baluchestan, Iran
| | - Sajad Kosari
- Department of Mathematics, University of Zabol, Zabol, Sistan and Baluchestan, Iran
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32
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Karunakaran KB, Gabriel GC, Balakrishnan N, Lo CW, Ganapathiraju MK. Novel Protein-Protein Interactions Highlighting the Crosstalk between Hypoplastic Left Heart Syndrome, Ciliopathies and Neurodevelopmental Delays. Genes (Basel) 2022; 13:genes13040627. [PMID: 35456433 PMCID: PMC9032108 DOI: 10.3390/genes13040627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/08/2022] [Accepted: 03/08/2022] [Indexed: 02/06/2023] Open
Abstract
Hypoplastic left heart syndrome (HLHS) is a severe congenital heart disease (CHD) affecting 1 in 5000 newborns. We constructed the interactome of 74 HLHS-associated genes identified from a large-scale mouse mutagenesis screen, augmenting it with 408 novel protein-protein interactions (PPIs) using our High-Precision Protein-Protein Interaction Prediction (HiPPIP) model. The interactome is available on a webserver with advanced search capabilities. A total of 364 genes including 73 novel interactors were differentially regulated in tissue/iPSC-derived cardiomyocytes of HLHS patients. Novel PPIs facilitated the identification of TOR signaling and endoplasmic reticulum stress modules. We found that 60.5% of the interactome consisted of housekeeping genes that may harbor large-effect mutations and drive HLHS etiology but show limited transmission. Network proximity of diabetes, Alzheimer's disease, and liver carcinoma-associated genes to HLHS genes suggested a mechanistic basis for their comorbidity with HLHS. Interactome genes showed tissue-specificity for sites of extracardiac anomalies (placenta, liver and brain). The HLHS interactome shared significant overlaps with the interactomes of ciliopathy- and microcephaly-associated genes, with the shared genes enriched for genes involved in intellectual disability and/or developmental delay, and neuronal death pathways, respectively. This supported the increased burden of ciliopathy variants and prevalence of neurological abnormalities observed among HLHS patients with developmental delay and microcephaly, respectively.
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Affiliation(s)
- Kalyani B. Karunakaran
- Supercomputer Education and Research Centre, Indian Institute of Science, Bangalore 560012, India; (K.B.K.); (N.B.)
| | - George C. Gabriel
- Department of Developmental Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15201, USA; (G.C.G.); (C.W.L.)
| | - Narayanaswamy Balakrishnan
- Supercomputer Education and Research Centre, Indian Institute of Science, Bangalore 560012, India; (K.B.K.); (N.B.)
| | - Cecilia W. Lo
- Department of Developmental Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15201, USA; (G.C.G.); (C.W.L.)
| | - Madhavi K. Ganapathiraju
- Department of Biomedical Informatics, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15206, USA
- Intelligent Systems Program, School of Computing and Information, University of Pittsburgh, Pittsburgh, PA 15260, USA
- Correspondence:
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33
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Bhattacharya R, Balakrishnan N. A MCMC-type simple probabilistic approach for determining optimal progressive censoring schemes. COMMUN STAT-SIMUL C 2022. [DOI: 10.1080/03610918.2022.2057537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Ritwik Bhattacharya
- Department of Industrial Engineering, School of Engineering and Sciences, Instituto Tecnologico y de Estudios Superiores de Monterrey, Monterrey, México
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34
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Kattumannil SK, Sreedevi EP, Balakrishnan N. A Generalized Measure of Cumulative Residual Entropy. Entropy 2022; 24:e24040444. [PMID: 35455107 PMCID: PMC9031338 DOI: 10.3390/e24040444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/19/2022] [Accepted: 03/21/2022] [Indexed: 11/16/2022]
Abstract
In this work, we introduce a generalized measure of cumulative residual entropy and study its properties. We show that several existing measures of entropy, such as cumulative residual entropy, weighted cumulative residual entropy and cumulative residual Tsallis entropy, are all special cases of this generalized cumulative residual entropy. We also propose a measure of generalized cumulative entropy, which includes cumulative entropy, weighted cumulative entropy and cumulative Tsallis entropy as special cases. We discuss a generating function approach, using which we derive different entropy measures. We provide residual and cumulative versions of Sharma–Taneja–Mittal entropy and obtain them as special cases this generalized measure of entropy. Finally, using the newly introduced entropy measures, we establish some relationships between entropy and extropy measures.
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Affiliation(s)
| | - E. P. Sreedevi
- Department of Statistics, SNGS College, Pattambi 679306, India;
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35
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Wan SM, Balakrishnan N, Manurung MM, Chang KH, Wu CH. Semi-blinded design in clinical trials. COMMUN STAT-THEOR M 2022. [DOI: 10.1080/03610926.2022.2042024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Shu-Mei Wan
- Department of Finance, Lunghwa University of Science and Technology, Taoyuan, Taiwan
| | | | | | - Kwang-Hwa Chang
- Department of Physical Medicine and Rehabilitation, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Injury Prevention and Control, College of Public Health, Taipei Medical University, Taipei, Taiwan
| | - Chien-Hua Wu
- Department of Applied Mathematics, Chung-Yuan Christian University, Chung-Li, Taiwan
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36
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Balakrishnan N, Alam FMA. Maximum likelihood estimation of the parameters of student’s t Birnbaum-Saunders distribution: a comparative study. COMMUN STAT-SIMUL C 2022. [DOI: 10.1080/03610918.2019.1659359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
| | - Farouq Mohammad A. Alam
- Department of Statistics, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
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37
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Balakrishnan N, Mathew DC, Kattumannil SK. An exact test for exponentiality against renewal increasing mean residual life class. STATISTICS-ABINGDON 2022. [DOI: 10.1080/02331888.2022.2044328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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38
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Caro-Lopera FJ, González Farías G, Balakrishnan N. Matrix Variate Distribution Theory under Elliptical Models—V: The Non-Central Wishart and Inverted Wishart Distributions. Math Meth Stat 2022. [DOI: 10.3103/s1066530722010021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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39
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Balakrishnan N, Bhattacharya R. On simultaneous best linear unbiased prediction of future order statistics and associated properties. J MULTIVARIATE ANAL 2022. [DOI: 10.1016/j.jmva.2021.104854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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40
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Fang L, Zhang S, Lu J, Balakrishnan N. Orderings of extremes from dependent Gaussian variables with Archimedean copula under simple tree order restrictions. STATISTICS-ABINGDON 2022. [DOI: 10.1080/02331888.2022.2032064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Longxiang Fang
- Department of Mathematics and Statistics, Anhui Normal University, Wuhu, People's Republic of China
| | - Shuai Zhang
- Department of Mathematics and Statistics, Anhui Normal University, Wuhu, People's Republic of China
| | - Jinling Lu
- Department of Mathematics and Statistics, Anhui Normal University, Wuhu, People's Republic of China
| | - N. Balakrishnan
- Department of Mathematics and Statistics, McMaster University, Hamilton, Ontario, Canada
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41
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Barmalzan G, Akrami A, Hosseinzadeh AA, Balakrishnan N. Orderings of fail-safe systems with components having Marshall-Olkin-Harris lifetime distributions. COMMUN STAT-THEOR M 2022. [DOI: 10.1080/03610926.2022.2037648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Ghobad Barmalzan
- Department of Statistics, University of Zabol, Sistan and Baluchestan, Iran
| | - Abbas Akrami
- Department of Mathematics, University of Zabol, Sistan and Baluchestan, Iran
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42
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Barmalzan G, Kosari S, Hosseinzadeh AA, Balakrishnan N. Likelihood ratio and dispersive orders of parallel and series systems consisting of dependent multiple-outlier components. COMMUN STAT-THEOR M 2022. [DOI: 10.1080/03610926.2022.2032751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Ghobad Barmalzan
- Department of Statistics, University of Zabol, Sistan and Baluchestan, Iran
| | - Sajad Kosari
- Department of Mathematics, University of Zabol, Sistan and Baluchestan, Iran
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43
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Balakrishnan N, Rychtář J, Taylor D, Walter SD. Accurate approximation of the expected value, standard deviation, and probability density function of extreme order statistics from Gaussian samples. COMMUN STAT-SIMUL C 2022. [DOI: 10.1080/03610918.2022.2034865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
| | - Jan Rychtář
- Department of Mathematics and Applied Mathematics, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Dewey Taylor
- Department of Mathematics and Applied Mathematics, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Stephen D. Walter
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
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44
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Balakrishnan N, Barui S, Milienos FS. Piecewise linear approximations of baseline under proportional hazards based COM-Poisson cure models. COMMUN STAT-SIMUL C 2022. [DOI: 10.1080/03610918.2022.2032157] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- N. Balakrishnan
- Department of Mathematics and Statistics, McMaster University, Hamilton, Ontario, Canada
| | - S. Barui
- Quantitative Methods and Operations Management Area, Indian Institute of Management Kozhikode, Kozhikode, Kerala, India
| | - F. S. Milienos
- Department of Sociology, Panteion University of Social and Political Sciences, Athens, Greece
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45
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da Silva H, Kendrick BK, Balakrishnan N. On the use of stereodynamical effects to control cold chemical reactions: The H + D2 ⟷ D + HD case study. J Chem Phys 2022; 156:044305. [DOI: 10.1063/5.0078168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- H. da Silva
- Department of Chemistry and Biochemistry, University of Nevada, Las Vegas, Nevada 89154, USA
| | - B. K. Kendrick
- Theoretical Division (T-1, MS B221), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - N. Balakrishnan
- Department of Chemistry and Biochemistry, University of Nevada, Las Vegas, Nevada 89154, USA
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46
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Sepahdar A, Madadi M, Balakrishnan N, Jamalizadeh A. Parsimonious mixture‐of‐experts based on mean mixture of multivariate normal distributions. Stat (Int Stat Inst) 2022. [DOI: 10.1002/sta4.421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Afsaneh Sepahdar
- Department of Statistics, Faculty of Mathematics and Computer Shahid Bahonar University of Kerman Kerman 76169‐14111 Iran
| | - Mohsen Madadi
- Department of Statistics, Faculty of Mathematics and Computer Shahid Bahonar University of Kerman Kerman 76169‐14111 Iran
| | | | - Ahad Jamalizadeh
- Department of Statistics, Faculty of Mathematics and Computer Shahid Bahonar University of Kerman Kerman 76169‐14111 Iran
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47
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48
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Zhu X, Balakrishnan N. Exact likelihood inference for Laplace distribution based on generalized hybrid censored samples. COMMUN STAT-SIMUL C 2021. [DOI: 10.1080/03610918.2021.2018458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Xiaojun Zhu
- Department of Mathematical Sciences, Xi’an Jiaotong-Liverpool University, Suzhou, P. R. China
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49
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Kamranfar H, Fouladirad M, Balakrishnan N. Inference for a gradually deteriorating system with imperfect maintenance. COMMUN STAT-SIMUL C 2021. [DOI: 10.1080/03610918.2021.2001528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Hoda Kamranfar
- Department of Statistics, Birjand University, Birjand, Iran
- LIST3N, Université de Technologie de Troyes, Troyes, France
| | - Mitra Fouladirad
- LIST3N, Université de Technologie de Troyes, Troyes, France
- Aix-Marseille University, CNRS, Centrale Marseille, Marseille, France
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50
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Affiliation(s)
- Omid Kharazmi
- Department of Statistics, Faculty of Mathematical Sciences, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran
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