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Livres
Articles (38)
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Bioinformatic and Biometric Methods in Plant Morphology

Punyasena, Surangi W., Smith, Selena Y.

Journal:

Applications in Plant Sciences

Année:

2014

Langue:

english

Fichier:

PDF, 473 KB

english, 2014

Mass extinction events and the plant fossil record

Jennifer C. McElwain, Surangi W. Punyasena

Journal:

Trends in Ecology & Evolution

Année:

2007

Langue:

english

Fichier:

PDF, 2.53 MB

english, 2007

Bound state solutions of the Manning–Rosen potential

Falaye, B.J., Oyewumi, K.J., Ibrahim, T.T., Punyasena, M.A., Onate, C.A.

Journal:

Canadian Journal of Physics

Année:

2013

Langue:

english

Fichier:

PDF, 193 KB

english, 2013

Identifying the pollen of an extinct spruce species in the Late Quaternary sediments of the Tunica Hills region, south-eastern United States

MANDER, L., RODRIGUEZ, J., MUELLER, P. G., JACKSON, S. T., PUNYASENA, S. W.

Journal:

Journal of Quaternary Science

Année:

2014

Langue:

english

Fichier:

PDF, 2.36 MB

english, 2014

[IEEE 2016 IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW) - Las Vegas, NV, USA (2016.6.26-2016.7.1)] 2016 IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW) - Spatially Aware Dictionary Learning and Coding for Fossil Pollen Identification

Kong, Shu, Punyasena, Surangi, Fowlkes, Charless

Année:

2016

Langue:

english

Fichier:

PDF, 799 KB

english, 2016

An investigation of rain and wind effects on thermal stability of large-area saltpan solar ponds

M.A Punyasena, C.D Amarasekara, J.R.P Jayakody, P.A.A Perera, P Ehamparam

Journal:

Solar Energy

Année:

2003

Langue:

english

Fichier:

PDF, 147 KB

english, 2003

The influence of climate on the spatial patterning of Neotropical plant families

Surangi W. Punyasena, Gidon Eshel, Jennifer C. McElwain

Journal:

Journal of Biogeography

Année:

2008

Langue:

english

Fichier:

PDF, 459 KB

english, 2008

PIXE analysis of in-plant aerosol

Evan T. Williams, Lahanda W. Punyasena

Journal:

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

Année:

1984

Langue:

english

Fichier:

PDF, 351 KB

english, 1984

PIXE Analysis of Aerosol in the Workplace

Williams, Evan T., Punyasena, Lahanda W.

Journal:

IEEE Transactions on Nuclear Science

Année:

1983

Langue:

english

Fichier:

PDF, 789 KB

english, 1983

Estimating Neotropical palaeotemperature and palaeoprecipitation using plant family climatic optima

Surangi W. Punyasena

Journal:

Palaeogeography, Palaeoclimatology, Palaeoecology

Année:

2008

Langue:

english

Fichier:

PDF, 1.64 MB

english, 2008

A 45 kyr palaeoclimate record from the lowland interior of tropical South America

Bronwen S. Whitney, Francis E. Mayle, Surangi W. Punyasena, Katharine A. Fitzpatrick, Michael J. Burn, René Guillen, Ezequiel Chavez, David Mann, R. Toby Pennington, Sarah E. Metcalfe

Journal:

Palaeogeography, Palaeoclimatology, Palaeoecology

Année:

2011

Langue:

english

Fichier:

PDF, 2.31 MB

english, 2011

Classifying black and white spruce pollen using layered machine learning

Surangi W. Punyasena, David K. Tcheng, Cassandra Wesseln, Pietra G. Mueller

Journal:

New Phytologist

Année:

2012

Langue:

english

Fichier:

PDF, 711 KB

english, 2012

Variability within the 10-Year Pollen Rain of a Seasonal Neotropical Forest and Its Implications for Paleoenvironmental and Phenological Research

Haselhorst, Derek S., Moreno, J. Enrique, Punyasena, Surangi W., Newsom, Lee A.

Journal:

PLoS ONE

Année:

2013

Langue:

english

Fichier:

PDF, 1.40 MB

english, 2013

Approaches to advance scientific understanding of macrosystems ecology

Levy, Ofir, Ball, Becky A, Bond-Lamberty, Ben, Cheruvelil, Kendra S, Finley, Andrew O, Lottig, Noah R, Punyasena, Surangi W, Xiao, Jingfeng, Zhou, Jizhong, Buckley, Lauren B, Filstrup, Christopher T,

Journal:

Frontiers in Ecology and the Environment

Année:

2014

Langue:

english

Fichier:

PDF, 2.02 MB

english, 2014

Achieving consistent species identifications of fossil pollen - case study Picea

Punyasena, Surangi

Journal:

Quaternary International

Année:

2012

Langue:

english

Fichier:

PDF, 45 KB

english, 2012

Semi-automated segmentation of pollen grains in microscopic images: a tool for three imaging modes

Johnsrud, Stefan, Yang, Huiguang, Nayak, Ashwin, Waduge Punyasena, Surangi

Journal:

Grana

Année:

2013

Langue:

english

Fichier:

PDF, 523 KB

english, 2013

On the Taxonomic Resolution of Pollen and Spore Records of Earth’s Vegetation

Mander, Luke, Punyasena, Surangi W.

Journal:

International Journal of Plant Sciences

Année:

2014

Langue:

english

Fichier:

PDF, 856 KB

english, 2014

Accuracy and Consistency of Grass Pollen Identification by Human Analysts Using Electron Micrographs of Surface Ornamentation

Mander, Luke, Baker, Sarah J., Belcher, Claire M., Haselhorst, Derek S., Rodriguez, Jacklyn, Thorn, Jessica L., Tiwari, Shivangi, Urrego, Dunia H., Wesseln, Cassandra J., Punyasena, Surangi W.

Journal:

Applications in Plant Sciences

Année:

2014

Langue:

english

Fichier:

PDF, 2.41 MB

english, 2014

[IEEE 2013 IEEE International Conference on Technologies for Homeland Security (HST) - Waltham, MA, USA (2013.11.12-2013.11.14)] 2013 IEEE International Conference on Technologies for Homeland Security (HST) - Automated pollen identification system for forensic geo-historical location applications

Hwang, Grace M., Riley, Kim C., Christou, Carol T., Jacyna, Garry M., Woodard, Jeffrey P., Ryan, Regina M., Bush, Mark B., Valencia, Bryan G., McMichael, Crystal N. H., Punyasena, Surangi W., Masters,

Année:

2013

Langue:

english

Fichier:

PDF, 959 KB

english, 2013

Ge

Helmer, R. L., Punyasena, M. A., Abegg, R., Alford, W. P., Celler, A., El-Kateb, S., Engel, J., Frekers, D., Henderson, R. S., Jackson, K. P., Long, S., Miller, C. A., Olsen, W. C., Spicer, B. M., Tru

Journal:

Physical Review C

Année:

1997

Langue:

english

Fichier:

PDF, 171 KB

english, 1997

reaction in the quasifree region

Benjamintz, M., Falk, W. R., Campbell, J. R., Green, A., Roos, P. G., Walden, P. L., Yen, S., Ling, A. G., Auld, E. G., Korkmaz, E., Punyasena, M. A.

Journal:

Physical Review C

Année:

1998

Langue:

english

Fichier:

PDF, 444 KB

english, 1998

Classification of grass pollen through the quantitative analysis of surface ornamentation and texture

Mander, L., Li, M., Mio, W., Fowlkes, C. C., Punyasena, S. W.

Journal:

Proceedings Biological Sciences

Année:

2013

Langue:

english

Fichier:

PDF, 1.16 MB

english, 2013

Comment on "The Response of Vegetation on the Andean Flank in Western Amazonia to Pleistocene Climate Change"

Punyasena, S. W., Dalling, J. W., Jaramillo, C., Turner, B. L.

Journal:

Science

Année:

2011

Langue:

english

Fichier:

PDF, 2.01 MB

english, 2011

Probabilistic correlation of single stratigraphic samples: A generalized approach for biostratigraphic data

Punyasena, Surangi W., Jaramillo, Carlos, de la Parra, Felipe, Du, Yuelin

Journal:

AAPG Bulletin

Année:

2012

Langue:

english

Fichier:

PDF, 498 KB

english, 2012

Quantitative estimates of glacial and Holocene temperature and precipitation change in lowland Amazonian Bolivia

Punyasena, Surangi W., Mayle, Francis E., McElwain, Jennifer C.

Journal:

Geology

Année:

2008

Langue:

english

Fichier:

PDF, 781 KB

english, 2008

Progress towards establishing collection standards for semi-automated pollen classification in forensic geo-historical location applications

Riley, Kimberly C., Woodard, Jeffrey P., Hwang, Grace M., Punyasena, Surangi W.

Journal:

Review of Palaeobotany and Palynology

Année:

2015

Langue:

english

Fichier:

PDF, 1.35 MB

english, 2015

A Neotropical Miocene Pollen Database Employing Image-Based Search and Semantic Modeling

Han, Jing Ginger, Cao, Hongfei, Barb, Adrian, Punyasena, Surangi W., Jaramillo, Carlos, Shyu, Chi-Ren

Journal:

Applications in Plant Sciences

Année:

2014

Langue:

english

Fichier:

PDF, 2.89 MB

english, 2014

Cuticle and subsurface ornamentation of intact plant leaf epidermis under confocal and superresolution microscopy

Urban, Michael A., Barclay, Richard S., Sivaguru, Mayandi, Punyasena, Surangi W.

Journal:

Microscopy Research and Technique

Année:

2016

Langue:

english

Fichier:

PDF, 926 KB

english, 2016

Comparative performance of airyscan and structured illumination superresolution microscopy in the study of the surface texture and 3D shape of pollen

Sivaguru, Mayandi, Urban, Michael A., Fried, Glenn, Wesseln, Cassandra J., Mander, Luke, Punyasena, Surangi W.

Journal:

Microscopy Research and Technique

Année:

2016

Langue:

english

Fichier:

PDF, 1.30 MB

english, 2016

Grass pollen surface ornamentation: a review of morphotypes and taxonomic utility

Mander, Luke, Punyasena, Surangi W.

Journal:

Journal of Micropalaeontology

Année:

2016

Langue:

english

Fichier:

PDF, 1.19 MB

english, 2016

The effects of seasonal and long-term climatic variability on Neotropical flowering phenology: An ecoinformatic analysis of aerial pollen data

Haselhorst, Derek S., Tcheng, David K., Enrique Moreno, J., Punyasena, Surangi W.

Journal:

Ecological Informatics

Année:

2017

Langue:

english

Fichier:

PDF, 698 KB

english, 2017

A morphometric analysis of vegetation patterns in dryland ecosystems

Mander, Luke, Dekker, Stefan C., Li, Mao, Mio, Washington, Punyasena, Surangi W., Lenton, Timothy M.

Journal:

Royal Society Open Science

Année:

2017

Langue:

english

Fichier:

PDF, 1.27 MB

english, 2017

ENSO signature in botanical proxy time series extends terrestrial El Niño record into the (sub)tropics

Donders, Timme H., Punyasena, Surangi W., de Boer, Hugo J., Wagner-Cremer, Friederike

Journal:

Geophysical Research Letters

Année:

2013

Langue:

english

Fichier:

PDF, 532 KB

english, 2013

Nested cell strainers: An alternative method of preparing palynomorphs and charcoal

Urban, Michael A., Romero, Ingrid C., Sivaguru, Mayandi, Punyasena, Surangi W.

Journal:

Review of Palaeobotany and Palynology

Année:

2018

Langue:

english

Fichier:

PDF, 8.36 MB

english, 2018

Capturing the Surface Texture and Shape of Pollen: A Comparison of Microscopy Techniques

Sivaguru, Mayandi, Mander, Luke, Fried, Glenn, Punyasena, Surangi W., Marcus, Adam I.

Journal:

PLoS ONE

Année:

2012

Langue:

english

Fichier:

PDF, 7.86 MB

english, 2012

Visual Recognition Software for Binary Classification and Its Application to Spruce Pollen Identification

Tcheng, David K., Nayak, Ashwin K., Fowlkes, Charless C., Punyasena, Surangi W., Wilf, Peter

Journal:

PLoS ONE

Année:

2016

Langue:

english

Fichier:

PDF, 1.03 MB

english, 2016

Assessing the influence of vegetation structure and phenological variability on pollenâvegetation relationships using a 15âyear Neotropical pollen rain record

Haselhorst, Derek S., Moreno, Jorge Enrique, Punyasena, Surangi W.

Journal:

Journal of Vegetation Science

Année:

2020

Fichier:

PDF, 9.97 MB

2020

Improving the taxonomy of fossil pollen using convolutional neural networks and superresolution microscopy

Romero, Ingrid C., Kong, Shu, Fowlkes, Charless C., Jaramillo, Carlos, Urban, Michael A., Oboh-Ikuenobe, Francisca, DâApolito, Carlos, Punyasena, Surangi W.

Journal:

Proceedings of the National Academy of Sciences

Année:

2020

Fichier:

PDF, 1009 KB

2020