Helliker, K.D: search on Z-Library

The world's largest scientific articles store. 70,000,000+ articles for free.

Don't use scam websites

1

Marxisms past and present

Helliker, K., Vale, P.

Journal:

Year:

2013

Language:

english

File:

PDF, 201 KB

english, 2013

2

Learning and performing political violence: ZANU-PF Youth and the 2008 presidential run-off election in Zimbabwe

Mwonzora, Gift, Helliker, Kirk

Journal:

African Studies

Year:

2020

File:

PDF, 1.66 MB

2020

3

C4photosynthesis, atmospheric CO2, and climate

James R. Ehleringer, Thure E. Cerling, Brent R. Helliker

Journal:

Year:

1997

Language:

english

File:

PDF, 743 KB

english, 1997

4

Book Review: NGOization: Complicity, Contradictions and Prospects

Journal:

Journal of Asian and African Studies

Year:

2015

Language:

english

File:

PDF, 318 KB

english, 2015

5

Quality of life in Grahamstown, East London and Mdantsane: Preliminary result

Bekker, Simon, Helliker, Kirk, Lambie, Eileen

Journal:

South African Journal of Sociology

Year:

1981

Language:

english

File:

PDF, 1003 KB

english, 1981

6

C₄ Photosynthesis, Atmospheric CO₂, and Climate

James R. Ehleringer, Thure E. Cerling and Brent R. Helliker

Journal:

Year:

1997

Language:

english

File:

PDF, 2.32 MB

english, 1997

7

Temporal and spatial variation in how vegetation alters the soil moisture response to climate manipulation

Pierre Liancourt, Anarmaa Sharkhuu, Lkhagva Ariuntsetseg, Bazartseren Boldgiv, Brent R. Helliker, Alain F. Plante, Peter S. Petraitis, Brenda B. Casper

Journal:

Year:

2012

Language:

english

File:

PDF, 510 KB

english, 2012

8

Effects of nitrogen addition on soil microbial diversity and methane cycling capacity depend on drainage conditions in a pine forest soil

Aronson, Emma L., Dubinsky, Eric A., Helliker, Brent R.

Journal:

Soil Biology and Biochemistry

Year:

2013

Language:

english

File:

PDF, 625 KB

english, 2013

9

A phylogeographic survey of a circumboreal polypore indicates introgression among ecologically differentiated cryptic lineages

Skaven Seierstad, Kristian, Carlsen, Tor, Sætre, Glenn-Peter, Miettinen, Otto, Hellik Hofton, Tom, Kauserud, Håvard

Journal:

Year:

2013

Language:

english

File:

PDF, 852 KB

english, 2013

10

NGOs and rural movements in contemporary South Africa

Helliker, Kirk D.

Journal:

Social Dynamics

Year:

2013

Language:

english

File:

PDF, 116 KB

english, 2013

11

Zimbabwe's Land Reform: Myths and Realities

Journal:

Journal of Contemporary African Studies

Year:

2011

Language:

english

File:

PDF, 143 KB

english, 2011

12

South African marxist state theory — a critical overview

Journal:

Year:

1988

Language:

english

File:

PDF, 1.04 MB

english, 1988

13

Liberation movements in power: Party and state in southern Africa

Journal:

South African Review of Sociology

Year:

2014

Language:

english

File:

PDF, 318 KB

english, 2014

14

Zimbabwe takes back its land

Journal:

Journal of Contemporary African Studies

Year:

2014

Language:

english

File:

PDF, 55 KB

english, 2014

15

An integrated approach towards future ballistic neck protection materials selection

Breeze, J., Helliker, M., Carr, D. J.

Journal:

Proceedings of the Institution of Mechanical Engineers Part H Journal of Engineering in Medicine

Year:

2013

Language:

english

File:

PDF, 895 KB

english, 2013

16

Plant Thermoregulation: Energetics, Trait–Environment Interactions, and Carbon Economics

Michaletz, Sean T., Weiser, Michael D., Zhou, Jizhong, Kaspari, Michael, Helliker, Brent R., Enquist, Brian J.

Journal:

Trends in Ecology & Evolution

Year:

2015

Language:

english

File:

PDF, 1.51 MB

english, 2015

17

Lightweight Ballistic Composites || Ballistic threats

Year:

2016

Language:

english

File:

PDF, 3.37 MB

english, 2016

18

Patriarchy, Women, Land and Livelihoods on A1 farms in Zimbabwe

Chiweshe, M. K., Chakona, L., Helliker, K.

Journal:

Journal of Asian and African Studies

Year:

2015

Language:

english

File:

PDF, 386 KB

english, 2015

19

Politics at a distance from the state: radical, South African and Zimbabwean praxis today

Helliker, Kirk, van der Walt, Lucien

Journal:

Journal of Contemporary African Studies

Year:

2016

Language:

english

File:

PDF, 1.46 MB

english, 2016

20

miR156âmediated changes in leaf composition lead to altered photosynthetic traits during vegetative phase change

Lawrence, Erica H., Springer, Clint J., Helliker, Brent R., Poethig, R. Scott

Journal:

New Phytologist

Year:

2020

File:

PDF, 20.60 MB

2020

21

18O composition of CO2 and H2O ecosystem pools and fluxes in a tallgrass prairie: Simulations and comparisons to measurements

William J. Riley, Christopher J. Still, Brent R. Helliker, Miguel Ribas-Carbo, Joseph A. Berry

Journal:

Global Change Biology

Year:

2003

Language:

english

File:

PDF, 376 KB

english, 2003

22

Grass blades as tree rings: environmentally induced changes in the oxygen isotope ratio of cellulose along the length of grass blades

Brent R. Helliker, James R. Ehleringer

Journal:

New Phytologist

Year:

2002

Language:

english

File:

PDF, 439 KB

english, 2002

23

Reliable determination of oxygen and hydrogen isotope ratios in atmospheric water vapour adsorbed on 3A molecular sieve

Liang-Feng Han, Manfred Gröning, Pradeep Aggarwal, Brent R. Helliker

Journal:

Rapid Communications in Mass Spectrometry

Year:

2006

Language:

english

File:

PDF, 145 KB

english, 2006

24

A rapid and precise method for sampling and determining the oxygen isotope ratio of atmospheric water vapor

Brent R. Helliker, John S. Roden, Craig Cook, James R. Ehleringer

Journal:

Rapid Communications in Mass Spectrometry

Year:

2002

Language:

english

File:

PDF, 136 KB

english, 2002

25

The contribution of C3and C4plants to the carbon cycle of a tallgrass prairie: an isotopic approach

Christopher J. Still, Joseph A. Berry, Miquel Ribas-Carbo, Brent R. Helliker

Journal:

Year:

2003

Language:

english

File:

PDF, 319 KB

english, 2003

26

Toward a plant-based proxy for the isotope ratio of atmospheric water vapor

BRENT R. HELLIKER, HOWARD GRIFFITHS

Journal:

Global Change Biology

Year:

2007

Language:

english

File:

PDF, 169 KB

english, 2007

27

Examining the large-scale convergence of photosynthesis-weighted tree leaf temperatures through stable oxygen isotope analysis of multiple data sets

Xin Song, Margaret M. Barbour, Matthias Saurer, Brent R. Helliker

Journal:

New Phytologist

Year:

2011

Language:

english

File:

PDF, 364 KB

english, 2011

28

Regional CO2 fluxes inferred from mixing ratio measurements: estimates from flask air samples in central Kansas, USA

CHUN-TA LAI, ANDREW J. SCHAUER, CLENTON OWENSBY, JAY M. HAM, BRENT HELLIKER, PIETER P. TANS, JAMES R. EHLERINGER

Journal:

Year:

2006

Language:

english

File:

PDF, 521 KB

english, 2006

29

Subtropical to boreal convergence of tree-leaf temperatures

Helliker, Brent R., Richter, Suzanna L.

Journal:

Year:

2008

Language:

english

File:

PDF, 341 KB

english, 2008

30

Stable Isotopes and Carbon Cycle Processes in Forests and Grasslands

J. R. Ehleringer, D. R. Bowling, L. B. Flanagan, J. Fessenden, B. Helliker, L. A. Martinelli, J. P. Ometto

Journal:

Year:

2002

Language:

english

File:

PDF, 162 KB

english, 2002

31

Legumes mitigate ecological consequences of a topographic gradient in a northern Mongolian steppe

Brenda B. Casper, Robert Goldman, Ariuntsetseg Lkhagva, Brent R. Helliker, Alain F. Plante, Laura A. Spence, Pierre Liancourt, Bazartseren Boldgiv, Peter S. Petraitis

Journal:

Year:

2012

Language:

english

File:

PDF, 338 KB

english, 2012

32

Pronounced ecological separation between two closely related lineages of the polyporous fungus Gloeoporus taxicola

Håvard Kauserud, Tom Hellik Hofton, Glenn-Peter Sætre

Journal:

Mycological Research

Year:

2007

Language:

english

File:

PDF, 491 KB

english, 2007

33

A re-evaluation of carbon storage in trees lends greater support for carbon limitation to growth

Erin Wiley, Brent Helliker

Journal:

New Phytologist

Year:

2012

Language:

english

File:

PDF, 228 KB

english, 2012

34

Hydrogen isotope ratios of leaf wax n-alkanes in grasses are insensitive to transpiration

Francesca A. McInerney, Brent R. Helliker, Katherine H. Freeman

Journal:

Geochimica et Cosmochimica Acta

Year:

2011

Language:

english

File:

PDF, 632 KB

english, 2011

35

Comparative water-use efficiencies of three species of Peperomia (piperaceae) having different photosynthetic pathways

Brent R. Helliker, Craig E. Martin

Journal:

Journal of Plant Physiology

Year:

1997

Language:

english

File:

PDF, 548 KB

english, 1997

36

Estimates of net CO 2 flux by application of equilibrium boundary layer concepts to CO 2 and water vapor measurements from a tall tower

Helliker, Brent R.

Journal:

Journal of Geophysical Research

Year:

2004

Language:

english

File:

PDF, 865 KB

english, 2004

37

Climatic controls of interannual variability in regional carbon fluxes from top-down and bottom-up perspectives

Desai, Ankur R., Helliker, Brent R., Moorcroft, Paul R., Andrews, Arlyn E., Berry, Joseph A.

Journal:

Journal of Geophysical Research

Year:

2010

Language:

english

File:

PDF, 614 KB

english, 2010

38

Methane flux response to nitrogen amendment in an upland pine forest soil and riparian zone

Aronson, E. L., Vann, D. R., Helliker, B. R.

Journal:

Journal of Geophysical Research

Year:

2012

Language:

english

File:

PDF, 231 KB

english, 2012

39

Plant response to climate change varies with topography, interactions with neighbors, and ecotype

Liancourt, Pierre, Spence, Laura A., Song, Daniel S., Lkhagva, Ariuntsetseg, Sharkhuu, Anarmaa, Boldgiv, Bazartseren, Helliker, Brent R., Petraitis, Peter S., Casper, Brenda B.

Journal:

Year:

2013

Language:

english

File:

PDF, 1.09 MB

english, 2013

40

Mesophyll conductance: internal insights of leaf carbon exchange

GRIFFITHS, HOWARD, HELLIKER, BRENT R.

Journal:

Plant, Cell & Environment

Year:

2013

Language:

english

File:

PDF, 111 KB

english, 2013

41

10.1071/PP01212

Griffiths, Howard, Helliker, Brent, Roberts, Andrew, Haslam, Richard P., Girnus, Jan, Robe, Wendy E., Borland, Anne M., Maxwell, Kate

Journal:

Functional Plant Biology

Year:

2002

Language:

english

File:

PDF, 305 KB

english, 2002

42

Identifying the water sources consumed by bison: implications for large mammalian grazers worldwide

Nippert, Jesse B., Culbertson, Teall S. F., Orozco, Graciela L., Ocheltree, Troy W., Helliker, Brent R.

Journal:

Year:

2013

Language:

english

File:

PDF, 1.57 MB

english, 2013

43

Methane flux in non-wetland soils in response to nitrogen addition: a meta-analysis

Aronson, E. L., Helliker, B. R.

Journal:

Year:

2010

Language:

english

File:

PDF, 315 KB

english, 2010

44

Grass Blades as Tree Rings: Environmentally Induced Changes in the Oxygen Isotope Ratio of Cellulose along the Length of Grass Blades

Brent R. Helliker and James R. Ehleringer

Journal:

New Phytologist

Year:

2002

Language:

english

File:

PDF, 1.11 MB

english, 2002

45

Effects of open-top passive warming chambers on soil respiration in the semi-arid steppe to taiga forest transition zone in Northern Mongolia

Sharkhuu, Anarmaa, Plante, Alain F., Enkhmandal, Orsoo, Casper, Brenda B., Helliker, Brent R., Boldgiv, Bazartseren, Petraitis, Peter S.

Journal:

Biogeochemistry

Year:

2013

Language:

english

File:

PDF, 835 KB

english, 2013

46

Civil society and state-centred struggles

Journal:

Journal of Contemporary African Studies

Year:

2012

Language:

english

File:

PDF, 226 KB

english, 2012

47

Marx, Weber and NGOs

Journal:

South African Review of Sociology

Year:

2007

Language:

english

File:

PDF, 1016 KB

english, 2007

48

Degradation of military body armor due to wear: Laboratory testing

Pinto, R., Carr, D., Helliker, M., Girvan, L., Gridley, N.

Journal:

Textile Research Journal

Year:

2012

Language:

english

File:

PDF, 272 KB

english, 2012

49

Reconstructing the δ 18 O of atmospheric water vapour via the CAM epiphyte Tillandsia usneoides : seasonal controls on δ 18 O in the field and large-scale reconstruction of δ 18 O a

HELLIKER, BRENT R.

Journal:

Plant, Cell & Environment

Year:

2014

Language:

english

File:

PDF, 1.17 MB

english, 2014

50

Transpiration rate relates to within- and across-species variations in effective path length in a leaf water model of oxygen isotope enrichment

SONG, XIN, BARBOUR, MARGARET M., FARQUHAR, GRAHAM D., VANN, DAVID R., HELLIKER, BRENT R.

Journal:

Plant, Cell & Environment

Year:

2013

Language:

english

File:

PDF, 1019 KB

english, 2013