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1. Efficacy of 75% alcohol in pretreatment of the Andersen sampler in trapping maximum airborne microbes

Author:
Zhao, Yan; Zhang, Jingwei; Wang, Shumei; Yu, Lingqi; Yu, Hao; Wang, Yuwen; Feng, Lihong
Source:
Aerobiologia 2021 v.37 no.1 pp. 171-178
ISSN:
0393-5965
Subject:
statistical analysis,   etc   ; autoclaving; ethanol;     Show all 3 Subjects
Abstract:
... The present study was conducted to evaluate the effects of the pretreatment methods and sampling time on the sampling of airborne bacteria in hospitals. Methods for the pretreatment of Andersen samplers, namely, non-sterilized, 75% ethanol and autoclaving sampled for 5 min, 10 min and 15 min in the general ward and class 1000 clean operating department, respectively, were studied. Statistical anal ...
DOI:
10.1007/s10453-020-09668-2

2. On computation of semiparametric maximum likelihood estimators with shape constraints

Author:
Wang, Yudong; Ye, Zhi‐Sheng; Cao, Hongyuan
Source:
Biometrics 2021 v.77 no.1 pp. 113-124
ISSN:
0006-341X
Subject:
statistical analysis,   etc   ; algorithms; mathematical theory;     Show all 3 Subjects
Abstract:
... Large sample theory of semiparametric models based on maximum likelihood estimation (MLE) with shape constraint on the nonparametric component is well studied. Relatively less attention has been paid to the computational aspect of semiparametric MLE. The computation of semiparametric MLE based on existing approaches such as the expectation‐maximization (EM) algorithm can be computationally prohibi ...
DOI:
10.1111/biom.13266

3. Experimental replications in animal trials

Author:
Frommlet, Florian; Heinze, Georg
Source:
Laboratory animals 2021 v.55 no.1 pp. 65-75
ISSN:
1758-1117
Subject:
statistical analysis,   etc   ; experimental design; laboratories;     Show all 3 Subjects
Abstract:
... The recent discussion on the reproducibility of scientific results is particularly relevant for preclinical research with animal models. Within certain areas of preclinical research, there exists the tradition of repeating an experiment at least twice to demonstrate replicability. If the results of the first two experiments do not agree, then the experiment might be repeated a third time. Sometime ...
DOI:
10.1177/0023677220907617

4. When regional identities differ over generation: Deinstitutionalisation of regions and regional identities in a regional amalgam

Author:
Šerý, Miloslav; Daňková, Marcela
Source:
Journal of rural studies 2021 v.82 pp. 430-441
ISSN:
0743-0167
Subject:
statistical analysis,   etc   ; empirical research; questionnaires;     Show all 3 Subjects
Abstract:
... Regions are seen as historically conditioned phenomena, and on different scales, they can serve as spaces for the discursively constructed identities of their inhabitants. Yet, little is known about what happens to these identities in the long-term when an old regional structure is deinstitutionalised and replaced by a new structure. This article aims to fill this gap in the knowledge; by explorin ...
DOI:
10.1016/j.jrurstud.2021.01.033

5. Generalized accelerated hazards mixture cure models with interval-censored data

Author:
Liu, Xiaoyu; Xiang, Liming
Source:
Computational statistics & data analysis 2021 v.161 pp. 107248
ISSN:
0167-9473
Subject:
statistical analysis,   etc   ; data analysis; lungs; models;     Show all 4 Subjects
Abstract:
... Existing semiparametric mixture cure models with interval-censored data often assume a survival model, such as the Cox proportional hazards model, proportional odds model, accelerated failure time model, or their transformations for the susceptible subjects. There are cases in practice that such conventional assumptions may be inappropriate for modeling survival outcomes of susceptible subjects. W ...
DOI:
10.1016/j.csda.2021.107248

6. Analysis of photovoltaic module performance and life cycle degradation for a 23 year-old array in Quebec, Canada

Author:
Baldus-Jeursen, Christopher; Côté, Alexandre; Deer, Tanya; Poissant, Yves
Source:
Renewable energy 2021 v.174 pp. 547-556
ISSN:
0960-1481
Subject:
statistical analysis,   etc   ; solar collectors; spectroscopy; Quebec;     Show all 4 Subjects
Abstract:
... Photovoltaic module performance data during field operation are essential to understanding the causes of degradation or failure. In this work, performance metrics were analyzed for 357 modules in a rooftop array operating for 23 years in Varennes, Quebec. Modules were studied by visual inspection, solar simulator I–V curves, and Auger Electron Spectroscopy. A statistical analysis of degradation pa ...
DOI:
10.1016/j.renene.2021.04.013

7. Estimating predator functional responses using the times between prey captures

Author:
Coblentz, Kyle E.; DeLong, John P.
Source:
Ecology 2021 v.102 no.4 pp. e03307
ISSN:
0012-9658
Subject:
statistical analysis,   etc   ; experimental design; statistical models;     Show all 3 Subjects
Abstract:
... Predator functional responses describe predator feeding rates and are central to predator–prey theory. Ecologists have measured thousands of predator functional responses using the same basic experimental method. However, this design is ill‐suited to address many current questions regarding functional responses. We derive a new experimental design and statistical analysis that quantifies functiona ...
DOI:
10.1002/ecy.3307

8. Phylogenomics of Gesneriaceae using targeted capture of nuclear genes

Author:
Ogutcen, Ezgi; Christe, Camille; Nishii, Kanae; Salamin, Nicolas; Möller, Michael; Perret, Mathieu
Source:
Molecular phylogenetics and evolution 2021 v.157 pp. 107068
ISSN:
1055-7903
Subject:
statistical analysis,   etc   ; ; Gesneriaceae; flower morphology; genes; phylogeny;     Show all 6 Subjects
Abstract:
... Gesneriaceae (ca. 3400 species) is a pantropical plant family with a wide range of growth form and floral morphology that are associated with repeated adaptations to different environments and pollinators. Although Gesneriaceae systematics has been largely improved by the use of Sanger sequencing data, our understanding of the evolutionary history of the group is still far from complete due to the ...
DOI:
10.1016/j.ympev.2021.107068

9. Environmental protection problems in the areas of former mines with emphasis on sinkholes: selected examples

Author:
Strzałkowski, P.; Litwa, P.
Source:
International journal of environmental science and technology 2021 v.18 no.3 pp. 771-780
ISSN:
1735-1472
Subject:
statistical analysis,   etc   ; dogs; environmental protection; technology; Poland;     Show all 5 Subjects
Abstract:
... The paper concerns an analysis of causes of sinkholes in the area of the former mines located in the Upper Silesia (Poland). The conducted statistical analysis allowed to determine the share of some types of shallow excavations in the formation of sinkholes. Analyses covered the period from 1966 to 2003 and records of more than 300 sinkholes. The research team determined—on the basis of the consid ...
DOI:
10.1007/s13762-020-02860-4

10. Investigating Australian Consumers’ Perceptions of and Preferences for Different Styles of Sparkling Wine Using the Fine Wine Instrument

Author:
Verdonk, Naomi; Ristic, Renata; Culbert, Julie A.; Pearce, Karma; Wilkinson, Kerry L.
Source:
Foods 2021 v.10 no.3
ISSN:
2304-8158
Subject:
statistical analysis,   etc   ; behavior; champagne; surveys; white wines;     Show all 5 Subjects
Abstract:
... This study investigated consumer preferences for different styles of sparkling wine and the influence of wine style and occasion on sparkling wine purchasing and consumption behavior. Australian consumers (n = 203) completed an online survey and blind tasting of representative styles of commercial sparkling wines, including Champagne. Wine sensory profiles were determined by descriptive analysis u ...
DOI:
10.3390/foods10030488

11. A Zonal Displacement Approach via Grid Point Weighting in Building Generalization

Author:
Sahbaz, Kadir; Basaraner, Melih
Source:
ISPRS international journal of geo-information 2021 v.10 no.2
ISSN:
2220-9964
Subject:
statistical analysis,   etc   ; quantitative analysis; spatial data;     Show all 3 Subjects
Abstract:
... When generalizing a group of objects, displacement is an essential operation to resolve the conflicts arising between them due to enlargement of their symbol sizes and reduction of available map space. Although there are many displacement methods, most of them are rather complicated. Therefore, more practical methods are still needed. In this article, a new building displacement approach is propos ...
DOI:
10.3390/ijgi10020105

12. Groups and Individuals: Optical Flow Patterns of Broiler Chicken Flocks Are Correlated with the Behavior of Individual Birds

Author:
Gebhardt-Henrich, Sabine G.; Stratmann, Ariane; Dawkins, Marian Stamp
Source:
Animals 2021 v.11 no.2
ISSN:
2076-2615
Subject:
statistical analysis,   etc   ; broiler chickens; flocks; variance;     Show all 4 Subjects
Abstract:
... Group level measures of welfare flocks have been criticized on the grounds that they give only average measures and overlook the welfare of individual animals. However, we here show that the group-level optical flow patterns made by broiler flocks can be used to deliver information not just about the flock averages but also about the proportion of individuals in different movement categories. Mean ...
DOI:
10.3390/ani11020568

13. The potential of water security in leveraging Agenda 2030

Author:
Taka, Maija; Ahopelto, Lauri; Fallon, Amy; Heino, Matias; Kallio, Marko; Kinnunen, Pekka; Niva, Venla; Varis, Olli
Source:
One earth 2021 v.4 no.2 pp. 258-268
ISSN:
2590-3322
Subject:
statistical analysis,   etc   ; hunger; sustainable development; water security;     Show all 4 Subjects
Abstract:
... Understanding interlinkages among UN's Sustainable Development Goals (SDGs) is pivotal for the success of Agenda 2030. Here, we use water, a key sustainability resource, to advance SDG science by (1) assessing the synergies and trade-offs of improved water security on achieving the SDGs, (2) examining all the SDGs simultaneously, and (3) using a statistical analysis approach to synthesize the main ...
DOI:
10.1016/j.oneear.2021.01.007

14. Discovering Spatial-Temporal Indication of Crime Association (STICA)

Author:
Jiang, Chao; Liu, Lin; Qin, Xiaoxing; Zhou, Suhong; Liu, Kai
Source:
ISPRS international journal of geo-information 2021 v.10 no.2
ISSN:
2220-9964
Subject:
statistical analysis,   etc   ; crime; spatial data; China;     Show all 4 Subjects
Abstract:
... The importance of combining spatial and temporal aspects has been increasingly recognized over recent years, yet pertinent pattern analysis methods in place-based crime research still need further development to explicitly indicate spatial-temporal localities of pertinent factors’ influence ranges. This paper proposes an approach, Spatial-Temporal Indication of Crime Association (STICA), to facili ...
DOI:
10.3390/ijgi10020067

15. Performing Selection on a Monotonic Function in Lieu of Sorting Using Layer-Ordered Heaps

Author:
Lucke, Kyle; Pennington, Jake; Kreitzberg, Patrick; Käll, Lukas; Serang, Oliver
Source:
Journal of proteome research 2021 v.20 no.4 pp. 1849-1854
ISSN:
1535-3907
Subject:
statistical analysis,   etc   ; algorithms; peptides; proteome; proteomics; research;     Show all 6 Subjects
Abstract:
... Nonparametric statistical tests are an integral part of scientific experiments in a diverse range of fields. When performing such tests, it is standard to sort values; however, this requires Ω(n log(n)) time to sort n values. Thus given enough data, sorting becomes the computational bottleneck, even with very optimized implementations such as the C++ standard library routine, std::sort. Frequently ...
DOI:
10.1021/acs.jproteome.0c00711

16. Indicators of body size variability in a highly developed small-scale fishery: Ecological and management implications

Author:
Alonso-Fernández, Alexandre; Otero, Jaime; Bañón, Rafael
Source:
Ecological indicators 2021 v.121 pp. 107141
ISSN:
1470-160X
Subject:
statistical analysis,   etc   ; body size; fisheries; Europe;     Show all 4 Subjects
Abstract:
... Body size plays a key role for the productivity and resilience of marine populations. This work analyses the variation in body size indicators taken from ~ 400 000 individuals during the period 2000–2018 for a set of 20 key commercial species of the small-scale fishery of Galicia (SW Europe). Mean body size showed relatively stable inter-annual trends during the study period, and, at the year leve ...
DOI:
10.1016/j.ecolind.2020.107141

17. 3DeFDR: statistical methods for identifying cell type-specific looping interactions in 5C and Hi-C data

Author:
Fernandez, Lindsey R.; Gilgenast, Thomas G.; Phillips-Cremins, Jennifer E.
Source:
Genome biology 2020 v.21 no.1 pp. 219
ISSN:
1474-760X
Subject:
statistical analysis,   etc   ; chromatin; models;     Show all 3 Subjects
Abstract:
... An important unanswered question in chromatin biology is the extent to which long-range looping interactions change across developmental models, genetic perturbations, drug treatments, and disease states. Computational tools for rigorous assessment of cell type-specific loops across multiple biological conditions are needed. We present 3DeFDR, a simple and effective statistical tool for classifyin ...
DOI:
10.1186/s13059-020-02061-9

18. Effects of differential probabilities of reinforcement on human timing

Author:
Cambraia, Renata; Bugallo, Mehdi; Vasconcelos, Marco; Machado, Armando
Source:
Behavioural processes 2020 v.177 pp. 104146
ISSN:
0376-6357
Subject:
statistical analysis,   etc   ; games; humans;     Show all 3 Subjects
Abstract:
... We investigated how differential payoffs affect the temporal discrimination of humans. In a temporal bisection task, participants learned to make one response after a short sample and another after a long sample. When presented with a range of intermediate samples, the proportion of responses fitted well a Gaussian-like distribution function characterized by a location (bias), a scale (sensitivity ...
DOI:
10.1016/j.beproc.2020.104146

19. Joint model-free feature screening for ultra-high dimensional semi-competing risks data

Author:
Lu, Shuiyun; Chen, Xiaolin; Xu, Sheng; Liu, Chunling
Source:
Computational statistics & data analysis 2020 v.147 pp. 106942
ISSN:
0167-9473
Subject:
statistical analysis,   etc   ; risk; screening;     Show all 3 Subjects
Abstract:
... High-dimensional semi-competing risks data consisting of two probably correlated events, namely terminal event and non-terminal event, arise commonly in many biomedical studies. However, the corresponding statistical analysis is rarely investigated. A joint model-free feature screening procedure for both terminal and non-terminal events is proposed, which could allow the associated covariates to b ...
DOI:
10.1016/j.csda.2020.106942

20. On the inconsistency of nonparametric bootstraps for the subvector Anderson–Rubin test

Author:
Wang, Wenjie
Source:
Economics letters 2020 v.191 pp. 109157
ISSN:
0165-1765
Subject:
statistical analysis,   etc   ; economic analysis;     Show all 2 Subject
Abstract:
... Bootstrap procedures based on instrumental variable (IV) estimates or t-statistics are generally invalid when the instruments are weak. The bootstrap may even fail when applied to identification-robust test statistics. For subvector inference based on the Anderson–Rubin (AR) statistic, Wang and Doko Tchatoka (2018) show that the residual bootstrap is inconsistent under weak IVs. In particular, the ...
DOI:
10.1016/j.econlet.2020.109157