Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

204,357 Full-Text Articles 252,686 Authors 37,629,645 Downloads 412 Institutions

All Articles in Life Sciences

Faceted Search

204,357 full-text articles. Page 10 of 5198.

Maize Root Distributions Strongly Associated With Water Tables In Iowa, Usa, Virginia A. Nichols, Raziel A. Ordonez, Emily E. Wright, Michael J. Castellano, Matt Liebman, Jerry L. Hatfield, Matt Helmers, Sotirios V. Archontoulis 2019 Iowa State University

Maize Root Distributions Strongly Associated With Water Tables In Iowa, Usa, Virginia A. Nichols, Raziel A. Ordonez, Emily E. Wright, Michael J. Castellano, Matt Liebman, Jerry L. Hatfield, Matt Helmers, Sotirios V. Archontoulis

Michael Castellano

No abstract provided.


Novel Use Of Conceptual Change Framework Improves Video On Challenging Science Topic, Matthew J. Helmers, Timothy D. Youngquist, Nancy Grudens-Schuck 2019 Iowa State University

Novel Use Of Conceptual Change Framework Improves Video On Challenging Science Topic, Matthew J. Helmers, Timothy D. Youngquist, Nancy Grudens-Schuck

Matthew J. Helmers

Educational campaigns are more complicated when members of our audiences hold scientific misconceptions related to new technologies. Our prairie strips research and education team produced a brief, focused video aimed to dispel a misconception related to the effect of prairie strip plants' roots on agricultural drain tiles in the Midwest. Our "Field Tile Investigation" video was based on the conceptual change framework from science education and featured a discrepant event. The goal was to move farmers, landowners, and their advisors to an understanding of prairie strips that was more compatible with the scientific standard.


Maize Root Distributions Strongly Associated With Water Tables In Iowa, Usa, Virginia A. Nichols, Raziel A. Ordonez, Emily E. Wright, Michael J. Castellano, Matt Liebman, Jerry L. Hatfield, Matt Helmers, Sotirios V. Archontoulis 2019 Iowa State University

Maize Root Distributions Strongly Associated With Water Tables In Iowa, Usa, Virginia A. Nichols, Raziel A. Ordonez, Emily E. Wright, Michael J. Castellano, Matt Liebman, Jerry L. Hatfield, Matt Helmers, Sotirios V. Archontoulis

Matthew J. Helmers

No abstract provided.


Canopy Chamber Measurements Of Carbon Dioxide Fluxes In Corn And Soybean Fields, Zhuangji Wang, Chenyi Luo, Thomas J. Sauer, Matthew J. Helmers, Liukang Xu, Robert Horton 2019 U.S. Department of Agriculture

Canopy Chamber Measurements Of Carbon Dioxide Fluxes In Corn And Soybean Fields, Zhuangji Wang, Chenyi Luo, Thomas J. Sauer, Matthew J. Helmers, Liukang Xu, Robert Horton

Matthew J. Helmers

Crop canopy CO2 exchange rate (CER) includes crop photosynthesis and soil/plant respiration. A portable canopy chamber is effective in determining crop CER values at a relatively small spatial (m2) scale. The objectives of this study were to use a canopy chamber to measure CO2 fluxes in corn (Zea mays L.) and soybean [Glycine max (L.) Merr.]. Chamber measurements were performed for 18 and 15 d in 2013 and 2014, respectively. The canopy chamber measures instantaneous CER fluxes, and daily and daytime cumulative CO2 values were calculated from the instantaneous CER. The chamber CER results were ...


Poker Online, game net 2019 Bryant University

Poker Online, Game Net

game net

GENERASIPOKER : SITUS POKER ONLINE DOMINO 99 TERPERCAYA, Situs Poker Online Domino 99 Terpercaya, Situs Poker Online Domino 99 Terpercaya, Situs Poker Online Domino 99 Terpercaya, Situs Poker Online Domino 99 Terpercaya, Situs Poker Online Domino 99 Terpercaya, Situs Poker Online Domino 99 Terpercaya, Situs Poker Online Domino 99 Terpercaya, Situs Poker Online Domino 99 Terpercaya, Situs Poker Online Domino 99 Terpercaya, Situs Poker Online Domino 99 Terpercaya, Situs Poker Online Domino 99 Terpercaya, Situs Poker Online Domino 99 Terpercaya, Situs Poker Online Domino 99 Terpercaya, Situs Poker Online Domino 99 Terpercaya, Situs Poker Online Domino 99 Terpercaya, Situs Poker Online ...


Fagin: Synteny-Based Phylostratigraphy And Finer Classification Of Young Genes, Zebulun Arendsee, Jing Li, Urminder Singh, Priyanka Bhandary, Arun Seetharam, Eve Syrkin Wurtele 2019 Iowa State University

Fagin: Synteny-Based Phylostratigraphy And Finer Classification Of Young Genes, Zebulun Arendsee, Jing Li, Urminder Singh, Priyanka Bhandary, Arun Seetharam, Eve Syrkin Wurtele

Eve Wurtele

Background: With every new genome that is sequenced, thousands of species-specific genes (orphans) are found, some originating from ultra-rapid mutations of existing genes, many others originating de novo from non-genic regions of the genome. If some of these genes survive across speciations, then extant organisms will contain a patchwork of genes whose ancestors first appeared at different times. Standard phylostratigraphy, the technique of partitioning genes by their age, is based solely on protein similarity algorithms. However, this approach relies on negative evidence ─ a failure to detect a homolog of a query gene. An alternative approach is to limit the search ...


Visualizing Multivariate Hierarchic Data Using Enhanced Radial Space-Filling Layout, Ming Jia, Ling Li, Erin Boggess, Eve Syrkin Wurtele, Julie A. Dickerson 2019 Iowa State University

Visualizing Multivariate Hierarchic Data Using Enhanced Radial Space-Filling Layout, Ming Jia, Ling Li, Erin Boggess, Eve Syrkin Wurtele, Julie A. Dickerson

Eve Wurtele

Currently, visualization tools for large ontologies (e.g., pathway and gene ontologies) result in a very flat wide tree that is difficult to fit on a single display. This paper develops the concept of using an enhanced radial space-filling (ERSF) layout to show biological ontologies efficiently. The ERSF technique represents ontology terms as circular regions in 3D. Orbital connections in a third dimension correspond to non-tree edges in the ontology that exist when an ontology term belongs to multiple categories. Biologists can use the ERSF layout to identify highly activated pathway or gene ontology categories by mapping experimental statistics such ...


Metnet: Systems Biology Tools For Arabidopsis, Eve Syrkin Wurtele, Ling Li, Dan Berleant, Dianne Cook, Julie A. Dickerson, Jing Ding, Heike Hofmann, Michael Lawrence, Eun-kyung Lee, Jie Li, Wieslawa Mentzen, Leslie Miller, Basil J. Nikolau, NIck Ransom, Yingjun Wang 2019 Iowa State University

Metnet: Systems Biology Tools For Arabidopsis, Eve Syrkin Wurtele, Ling Li, Dan Berleant, Dianne Cook, Julie A. Dickerson, Jing Ding, Heike Hofmann, Michael Lawrence, Eun-Kyung Lee, Jie Li, Wieslawa Mentzen, Leslie Miller, Basil J. Nikolau, Nick Ransom, Yingjun Wang

Eve Wurtele

MetNet (http://metnetdb.org) is an emerging open-source software platform for exploration of disparate experimental data types and regulatory and metabolic networks in the context of Arabidopsis systems biology. The MetNet platform features graph visualization, interactive displays, graph theoretic computations for determining biological distances, a unique multivariate display and statistical analysis tool, graph modeling using the open source statistical analysis language, R, and versatile text mining. The use of these tools is illustrated with data from the bio1 mutant of Arabidopsis.


Comparative Proteomics Of Rubber Latex Revealed Multiple Protein Species Of Ref/Srpp Family Respond Diversely To Ethylene Stimulation Among Different Rubber Tree Clones, Zheng Tong, Dan Wang, Yong Sun, Qian Yang, Xueru Meng, Limin Wang, Weiqiang Feng, Ling Li, Eve Syrkin Wurtele, Xuchu Wang 2019 Chinese Academy of Tropical Agricultural Sciences

Comparative Proteomics Of Rubber Latex Revealed Multiple Protein Species Of Ref/Srpp Family Respond Diversely To Ethylene Stimulation Among Different Rubber Tree Clones, Zheng Tong, Dan Wang, Yong Sun, Qian Yang, Xueru Meng, Limin Wang, Weiqiang Feng, Ling Li, Eve Syrkin Wurtele, Xuchu Wang

Eve Wurtele

Rubber elongation factor (REF) and small rubber particle protein (SRPP) are two key factors for natural rubber biosynthesis. To further understand the roles of these proteins in rubber formation, six different genes for latex abundant REF or SRPP proteins, including REF138,175,258 and SRPP117,204,243, were characterized from Hevea brasiliensis Reyan (RY) 7-33-97. Sequence analysis showed that REFs have a variable and long N-terminal, whereas SRPPs have a variable and long C-terminal beyond the REF domain, and REF258 has a β subunit of ATPase in its N-terminal. Through two-dimensional electrophoresis (2-DE), each REF/SRPP protein ...


Fagin: Synteny-Based Phylostratigraphy And Finer Classification Of Young Genes, Zebulun Arendsee, Jing Li, Urminder Singh, Priyanka Bhandary, Arun Seetharam, Eve Syrkin Wurtele 2019 Iowa State University

Fagin: Synteny-Based Phylostratigraphy And Finer Classification Of Young Genes, Zebulun Arendsee, Jing Li, Urminder Singh, Priyanka Bhandary, Arun Seetharam, Eve Syrkin Wurtele

Arun Seetharam

Background: With every new genome that is sequenced, thousands of species-specific genes (orphans) are found, some originating from ultra-rapid mutations of existing genes, many others originating de novo from non-genic regions of the genome. If some of these genes survive across speciations, then extant organisms will contain a patchwork of genes whose ancestors first appeared at different times. Standard phylostratigraphy, the technique of partitioning genes by their age, is based solely on protein similarity algorithms. However, this approach relies on negative evidence ─ a failure to detect a homolog of a query gene. An alternative approach is to limit the search ...


Thinking About Thinking Chickens, Lori Marino 2019 Animal Studies Repository

Thinking About Thinking Chickens, Lori Marino

Lori Marino, PhD

This response focuses on three major conceptual threads that run through the peer commentary on my target article: (1) how the use of chickens influences our views of them, (2) whether education is effective, and (3) what components of chicken psychology are most relevant to understanding who chickens are.



“I Am Not An Animal”, Lori Marino 2019 Animal Studies Repository

“I Am Not An Animal”, Lori Marino

Lori Marino, PhD

The answer to Chapman & Huffman’s question — “Why do we want to think humans are different?” — lies in the work of Ernest Becker and the social psychology literature known as Terror Management Theory, according to which our deep anxiety about animality and death can drive our need to feel superior to the other animals.


Deepening Our Understanding Of Sheep, Lori Marino, Debra Merskin 2019 University of Oregon

Deepening Our Understanding Of Sheep, Lori Marino, Debra Merskin

Lori Marino, PhD

Our Response is centered on five major themes: (1) our presentation of human mythologies about sheep; (2) the relevance of cognitive complexity (“intelligence”) as a dimension underlying the way people perceive and treat sheep; (3) whether our review is too anthropocentric or anthropomorphic; (4) animal welfare versus animal rights (abolitionism); and (5) whether knowledge and education are enough to change human attitudes and behavior.


Octopus Minds Must Lead To Octopus Ethics, Barbara J. King, Lori Marino 2019 College of William and Mary

Octopus Minds Must Lead To Octopus Ethics, Barbara J. King, Lori Marino

Lori Marino, PhD

Mather argues convincingly for the existence of minds in octopuses based largely on laboratory experiments. Many of these experiments are highly invasive and involve mutilation and death. Moreover, octopuses are now being hailed as a “new model” for biological research and are being enthusiastically bred in captivity, both for research and for food. We argue that the compelling evidence for mind in octopuses must be accompanied by intense scrutiny of the ethics that shape how we treat them and that the intrinsic value of their individual lives must be recognized.


The Inconvenient Truth About Thinking Chickens, Lori Marino 2019 Animal Studies Repository

The Inconvenient Truth About Thinking Chickens, Lori Marino

Lori Marino, PhD

Original Abstract: Domestic chickens are members of an order, Aves, which has been the focus of a revolution in our understanding of neuroanatomical, cognitive, and social complexity. Some birds are now known to be on a par with many mammals in their intelligence, emotional sophistication, and social interaction. Yet views of chickens have largely remained unrevised in light of this new evidence. In this paper, I examine the data on cognition, emotions, personality, and sociality in chickens, exploring such areas as self-awareness, cognitive bias, social learning and self-control, and comparing their abilities with other birds and other vertebrates, particularly mammals ...


Intelligence, Complexity, And Individuality In Sheep, Lori Marino, Debra Merskin 2019 Kimmela Center

Intelligence, Complexity, And Individuality In Sheep, Lori Marino, Debra Merskin

Lori Marino, PhD

Domestic sheep (Ovis aries) are among the earliest animals domesticated for human use. They are consumed worldwide as mutton, hogget, and lamb, kept as wool and milk producers, and used extensively in scientific research. The popular stereotype is that sheep are docile, passive, unintelligent, and timid, but a review of the research on their behavior, affect, cognition, and personality reveals that they are complex, individualistic, and social.


Recent Advances In Cucurbit Downy Mildew Research And Their Contribution To The Development Of Integrated Protection Of Cucurbits, Aleš Lebeda, Eva Křístková, Božena Sedláková, Mark P. Widrlechner 2019 Palacký University

Recent Advances In Cucurbit Downy Mildew Research And Their Contribution To The Development Of Integrated Protection Of Cucurbits, Aleš Lebeda, Eva Křístková, Božena Sedláková, Mark P. Widrlechner

Mark P. Widrlechner

Knowledge of the recent distribution, host range, virulence, DNA profiles, and resistance to fungicides of Pseudoperonospora cubensis (Berk. & M. A. Curtis) Rostovzev, and sources of host resistance to this pathogen are reviewed (Lebeda and Cohen, 2011; 2012; Cohen et al., 2015). P. cubensis is widely distributed in all continents, with a high capacity to adapt to changing environmental conditions and new regions. Its host-plant range includes more than 60 species and 20 genera of Cucurbitaceae (Lebeda and Schwinn, 1994; Lebeda and Cohen, 2011). P. cubensis exhibits clear host specialization, with shifts in host range and an increasing spectrum of new host species (Lebeda et al., 2011).


Zero Waste, Spring/Summer 2017, Issue 36, 2019 University of Louisville

Zero Waste, Spring/Summer 2017, Issue 36

Sustain Magazine

No abstract provided.


Consent Decrees, Fall/Winter 2017, Issue 35, 2019 University of Louisville

Consent Decrees, Fall/Winter 2017, Issue 35

Sustain Magazine

No abstract provided.


Human Ecology, Spring/Summer 2016, Issue 34, 2019 University of Louisville

Human Ecology, Spring/Summer 2016, Issue 34

Sustain Magazine

No abstract provided.


Digital Commons powered by bepress