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Articles 31 - 60 of 769
Full-Text Articles in Anthropology
Iowa Academy Of Science: The New Bulletin, V10n2, Spring 2014, Iowa Academy Of Science
Iowa Academy Of Science: The New Bulletin, V10n2, Spring 2014, Iowa Academy Of Science
New Bulletin
Inside This Issue:
--Message from the Executive Director
--Candidates for IAS President –Elect
--Journal of the Iowa Academy of Science
--Iowa Academy of Science 2014 Ballot
--Specify where your IAS donation goes
--2013 Member Donations to the Academy
--Announcements, Events & Deadlines
Gene Expression Of Components Of The Insulin/Insulin-Like Signaling Pathway In Response To Heat Stress In The Garter Snake, Thamnophis Elegans, Tonia S. Schwartz, Anne M. Bronikowski
Gene Expression Of Components Of The Insulin/Insulin-Like Signaling Pathway In Response To Heat Stress In The Garter Snake, Thamnophis Elegans, Tonia S. Schwartz, Anne M. Bronikowski
Journal of the Iowa Academy of Science: JIAS
The insulin/insulin-like signaling (IIS) pathway is an evolutionary conserved molecular signaling pathway that regulates growth, reproduction, stress resistance, and longevity in response to nutrition and external stress. While the constituents of this pathway and their functions are relatively well understood in laboratory model animals, they have not been explored in many other organisms, with notable exceptions in the fisheries literature. We tested for the gene expression of four key components of this pathway in the garter snake (Thamnophis elegans) liver, and determine how the transcription of these components responds to heat stress. We found that the two insulin-like …
Synchronous Rotation In The Eclipsing Binary 68 Herculis Inferred From Doppler Shifts In Its Spectrum And Light Curve Modeling, Kenneth W. Mclaughlin, Janak Panthi
Synchronous Rotation In The Eclipsing Binary 68 Herculis Inferred From Doppler Shifts In Its Spectrum And Light Curve Modeling, Kenneth W. Mclaughlin, Janak Panthi
Journal of the Iowa Academy of Science: JIAS
Our differential photometry of the eclipsing binary 68 Herculis through V- and R-filters shows periodic minima consistent with a previously established period. As a function of its orbital motion, we report spectra over a limited wavelength range encompassing H-alpha 656.3 nm and helium 667.8 nm lines. Doppler shifts of both stars were resolved in H-alpha, while only the more massive star rendered the helium line with Doppler shifts that agree with the radial velocity we derive for it from the H-alpha profile. Sinusoidal curve-fits to the orbital dependence of the radial velocities imply circular orbits for both components, with amplitudes …
Improved Functional Prediction Of Hypothetical Proteins From Listeria Monocytogenes 08-5578, Michael J. Lagier, Brittany Bowman, Kelsey Brend, Katherine Hobbs, Michael Foggia, Mark Mcdaniel
Improved Functional Prediction Of Hypothetical Proteins From Listeria Monocytogenes 08-5578, Michael J. Lagier, Brittany Bowman, Kelsey Brend, Katherine Hobbs, Michael Foggia, Mark Mcdaniel
Journal of the Iowa Academy of Science: JIAS
Listeria monocytogenes is a foodborne human pathogen responsible for listerosis. The genomes of several L. monocytogenes strains have been recently sequenced. The genome of L. monocytogenes 08-5578, which was in part responsible for a significant listerosis outbreak in 2008, contains an unexpectedly high percentage of protein-encoding genes (1,927 out of 3,161; 60.96%) autonomously annotated as hypothetical proteins. The aim of this study was to test whether a manual annotation strategy could be used to assign more meaningful functional names to the hypothetical proteins of 08-5578. A holistic, manual gene annotation strategy that utilized sequence homology, cellular localization predictions, structure-based evidence, …
The Role Of An Urban Tallgrass Prairie Remnant In Conservation: A Case Study In Central Iowa (Usa), Jimmie D. Thompson, Deborah Q. Lewis, William R. Norris
The Role Of An Urban Tallgrass Prairie Remnant In Conservation: A Case Study In Central Iowa (Usa), Jimmie D. Thompson, Deborah Q. Lewis, William R. Norris
Journal of the Iowa Academy of Science: JIAS
Although more than 85% of Iowa (USA) was covered by tallgrass prairie at the time of settlement by Europeans in the early 19th century, less than 0.1% remains. The Richard W. Pohl State Preserve at Ames (IA) High School, surrounded on three sides by structures, roads, and other development, protects 4 ha of tallgrass prairie. The preserve, commonly referred to as Ames High Prairie (AHP), was grazed but never plowed under private ownership until its acquisition by the Ames School District in 1959.
Although considered for development as a parking lot or football field in the 1960s, the residents of …
Positional Plagiocephaly Among Tribal Societies And Contemporary Western Societies: A Comparison Of Treatments, Results, And Effects, Jacinda Rose Ruggles
Positional Plagiocephaly Among Tribal Societies And Contemporary Western Societies: A Comparison Of Treatments, Results, And Effects, Jacinda Rose Ruggles
Honors Program Theses
This study explores the two causes of positional plagiocephaly, or abnormal head shape in infants as well as effects and treatments. To do so, two groups were chosen for comparison: contemporary western societies and tribal Native American societies. In the first group, the medical condition known as positional plagiocephaly is considered before, during and after the Safe to Sleep campaign of the 1990’s. In the second group infant head flattening is discussed as a result of cradling practices and carrying techniques. The importance of this study is to contribute new insight into positional plagiocephaly and its treatments. The study combines …
Excavation And Stratigraphic Analysis Of A Late Nineteenth Century Boiler House, Ariel Marie Williams
Excavation And Stratigraphic Analysis Of A Late Nineteenth Century Boiler House, Ariel Marie Williams
Honors Program Theses
An archaeological excavation was carried out in November of 2013 on the block of 13th and Tremont Streets in the city of Cedar Falls, Blackhawk County, Iowa. The site examined was home to a late nineteenth century boiler house that powered several greenhouses on the property. Greenhouses occupy a distinctive industrial niche and have rarely been studied using an archaeological approach. The goals in excavating at the boiler house site were to determine what formation processes led to the creation of the stratigraphy as initially observed by the property owner, and what the layers and artifacts recovered from them tell …
Iowa Academy Of Science: The New Bulletin, V09n2, Fall 2013, Iowa Academy Of Science
Iowa Academy Of Science: The New Bulletin, V09n2, Fall 2013, Iowa Academy Of Science
New Bulletin
Inside This Issue:
--Message from the Executive Director
--ICTM-ISTS Math Science Fall Conference
--Next Generation Science Standards Updates
--Academy to Host NGSS Alignment Workshop
--Abstract Submission Deadline
--All Puns Intended: New Facilitators Dive into Project WET
--Iowa Science Foundation
--Recognizing Excellence
--Events and Deadlines
--New Excellence in Science Teaching Award
Iowa Academy Of Science: The New Bulletin, V09n1, Spring 2013, Iowa Academy Of Science
Iowa Academy Of Science: The New Bulletin, V09n1, Spring 2013, Iowa Academy Of Science
New Bulletin
Inside This Issue:
--Message from the Executive Director
--Seeking Project WET Facilitators
--125th Annual Meeting of the Iowa Academy of Science
--Candidates for IAS President –Elect
--Iowa Academy of Science 2013 Ballot
--Announcements, Events & Deadlines
--2012 Member Donations to the Academy
--Ag Energy Webinars
Speaking Politely, Kindly, And Beautifully: Ideologies Of Politeness In Japanese Business Etiquette Training, Cynthia Dickel Dunn
Speaking Politely, Kindly, And Beautifully: Ideologies Of Politeness In Japanese Business Etiquette Training, Cynthia Dickel Dunn
Faculty Work
In recent years, politeness theory has increasingly focused on speakers’ own conceptualizations of polite behavior, viewing politeness concepts as a type of language ideology. This article examines the construction of Japanese politeness concepts in the business etiquette training provided for new employees in Japanese companies. Drawing on participant-observation of business etiquette seminars offered by five training companies, it analyzes how employees are taught to show deference through appropriate honorific use, to speak in ways which are seen as kind or considerate, and to speak and move in ways the instructors define as ‘beautiful.’ The analysis demonstrates how etiquette training conflates …
Iowa Academy Of Science: The New Bulletin, V10n1, Winter 2013, Iowa Academy Of Science
Iowa Academy Of Science: The New Bulletin, V10n1, Winter 2013, Iowa Academy Of Science
New Bulletin
Inside This Issue:
--Message from the Executive Director
--Journal of the Iowa Academy of Science
--2013 ICTM-ISTS Fall Conference Photo Album
--New Facilitators Dive into Project WET
--Attention Teachers: New Environmental Education Opportunities
--Experiencing REAP
--Students as Part of School Leadership for Promoting Reforms in Science
--Starr Student Research Grants
Degradation Of Algal Palynomorphs On 34-Yr-Old Microscope Slides, Lynn A. Brant
Degradation Of Algal Palynomorphs On 34-Yr-Old Microscope Slides, Lynn A. Brant
Journal of the Iowa Academy of Science: JIAS
Reexamination of 34-yr-old microscope slides of palynological preparations reveals the loss and degradation of algal palynomorphs, in particular the green alga Pediastrum and the desmid Pleurotaenium. Results from this study suggest that great caution should be used when referring co archived palynological slides.
A New Plant Record For Iowa: Lactuca Hirsuta (Asteraceae), Thomas L. Eddy
A New Plant Record For Iowa: Lactuca Hirsuta (Asteraceae), Thomas L. Eddy
Journal of the Iowa Academy of Science: JIAS
A new record of a native vascular plant, Lactuca hirsuta Muhlenberg ex Nuttall var. sanguinea (Bigelow) Fernald, is reported for Iowa. A specimen was collected in 1983 by the author during a study of the Swaledale railroad prairie in Cerro Gordo County, north central Iowa (Eddy 1988). The plant was inexplicably excluded in the species catalogue when a Swaledale railroad flora was published in 1988; thus, this “new” Iowa record in 2013 was collected 30 years prior. The voucher specimen was “re-discovered” by Dr. Neil A. Harriman at the University of Wisconsin-Oshkosh (OSH), and its identification verified.
Smaf: A Soil Health Assessment Tool, D. L. Karlen, C. D. Nance, D. L. Dinnes, D. W. Meek
Smaf: A Soil Health Assessment Tool, D. L. Karlen, C. D. Nance, D. L. Dinnes, D. W. Meek
Journal of the Iowa Academy of Science: JIAS
The Soil Management Assessment Framework (SMAF) was developed to help quantify soil quality/health effects of tillage, crop rotation, and other soil management practices. Our objective was to determine if the SMAF could detect soil health differences after growing a single winter triticale (X Triticosecale Wittmack) crop. Soil samples were collected from 0 to 7.5- and 7.5 to 15- cm depth increments during the 2003 – 2004 and 2004 – 2005 growing seasons near Ames and Lewis, IA, and analyzed for several potential soil quality indicators. The SMAF analysis showed higher soil quality ratings for surface than subsurface samples. It also …
The Vascular Flora Of Clay Prairie State Preserve (Butler County, Iowa): Recommendations To The Iowa State Preserve System, Edwin L. Freese, William R. Norris
The Vascular Flora Of Clay Prairie State Preserve (Butler County, Iowa): Recommendations To The Iowa State Preserve System, Edwin L. Freese, William R. Norris
Journal of the Iowa Academy of Science: JIAS
Clay Prairie State Preserve (1.2 ha) is an upland prairie located in Butler County, IA, and represents one of the last remnants of black-soil tallgrass prairie in northeast Iowa. An annotated checklist of the vascular flora of Clay Prairie is presented here, based on a previously published flora of the preserve and recent field work conducted by the authors between 1997 to 2001, and 2008 to 2011. The preserve contains a diverse vascular flora representing 50 families, 145 genera and 214 taxa (174 native to Iowa). In comparison with 26 larger prairies (4 to 121 ha) protected in the Iowa …
Iowa Academy Of Science: The New Bulletin, V08n3, Fall 2012, Iowa Academy Of Science
Iowa Academy Of Science: The New Bulletin, V08n3, Fall 2012, Iowa Academy Of Science
New Bulletin
Inside This Issue:
--Message from the Executive Director
--Congratulations Jody Stone
--ISTS Fall Conference
--Sneak Peek at Academy’s new web design
--Getting More Science Teachers to Model “Doing” Science
--Iowa needs the Iowa Academy of Science
--Announcements, Events & Deadlines
Iowa Academy Of Science: The New Bulletin, V08n2, Summer 2012, Iowa Academy Of Science
Iowa Academy Of Science: The New Bulletin, V08n2, Summer 2012, Iowa Academy Of Science
New Bulletin
Inside This Issue:
--Message from the Executive Director
--Iowa Science Teaching Section Elections
--Journal of the Iowa Academy of Science
--Announcements, Events & Deadlines
--Iowa Academy of Science Saylorville Lake Summer Speakers Series
--REAP-CEP Funds Project WET Preservice Workshops
Iowa Academy Of Science: The New Bulletin, V08n1, Spring 2012, Iowa Academy Of Science
Iowa Academy Of Science: The New Bulletin, V08n1, Spring 2012, Iowa Academy Of Science
New Bulletin
Inside This Issue:
--Message from the Executive Director
--Candidates for IAS President –Elect
--Journal of the Iowa Academy of Science
--Iowa Academy of Science 2012 Ballot
--124th Annual Meeting of the Iowa Academy of Science
--2011 Member Donations to the Academy
--Announcements, Events & Deadlines
Table Of Contents (Back Cover)
Table Of Contents (Back Cover)
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Development Of A Soil Carbon Index For Iowa Mineral Soils, M. M. Al-Kaisi, T. E. Fenton, J. G. Guzman, B. R. O'Neal
Development Of A Soil Carbon Index For Iowa Mineral Soils, M. M. Al-Kaisi, T. E. Fenton, J. G. Guzman, B. R. O'Neal
Journal of the Iowa Academy of Science: JIAS
A carbon index (Cl) is one of many soil quality indicators that depends on organic carbon concentration. One of the values of a soil carbon index is in determining the impact of agriculture practices (i.e., tillage, crop rotation, N management, etc.) on soil organic matter status of mineral soils. Interactions of climate, parent material, topography, time, and organisms including human activities influence soil organic carbon (SOC). This study developed a soil carbon index for mineral soil map units in Iowa using data collected by the Iowa Cooperative Soil Survey Laboratory and the USDA Soil Survey Laboratory for over 2,300 soil …
Editorial Board & Iowa Academy Of Sciences Officers And Directors
Editorial Board & Iowa Academy Of Sciences Officers And Directors
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Evidence From Detrital Zircon Ages For Middle Pennsylvanian Uplift And Drainage In The Source Area Of The Chariton Conglomerate And Marmaton Group Sandstones, Southern Iowa And Northern Missouri, Scott Mcfadden, Steven H. Emerman, Jane Pedrick Dawson, Kevin A. Rey, Tracy Kemp Anderson
Evidence From Detrital Zircon Ages For Middle Pennsylvanian Uplift And Drainage In The Source Area Of The Chariton Conglomerate And Marmaton Group Sandstones, Southern Iowa And Northern Missouri, Scott Mcfadden, Steven H. Emerman, Jane Pedrick Dawson, Kevin A. Rey, Tracy Kemp Anderson
Journal of the Iowa Academy of Science: JIAS
The Chariton Conglomerate is a quartz/limestone conglomerate of Middle Pennsylvanian age sparsely exposed in southern Iowa and northern Missouri. In Iowa it is characterized by quartz granules and rounded crinoid columnals. The objective of this study was to use detrital zircon ages to determine the provenance of the Chariton Conglomerate and possibly associated Marmaton Group sandstone beds. Detrital zircon ages were obtained for five conglomerate and two sandstone beds of the Chariton Conglomerate in Iowa, three conglomerate beds of the Chariton Conglomerate in Missouri, and two sandstone beds of the Marmaton Group in Iowa. According to the Kolmogorov-Smirnoff Test, the …
Harlan's Ground Sloth (Paramylodon Harlant) (Xenarthra: Mylodontidae) From The Late Pleistocene (Rancholabrean) Of Iowa, H. Gregory Mcdonald
Harlan's Ground Sloth (Paramylodon Harlant) (Xenarthra: Mylodontidae) From The Late Pleistocene (Rancholabrean) Of Iowa, H. Gregory Mcdonald
Journal of the Iowa Academy of Science: JIAS
Harlan's ground sloth, Paramylodon harlani, is documented for the first time from Iowa. The record is based on a fifth metacarpal recovered from a gravel bar within West Tarkio Creek, Page County. While the specimen was not found in situ, and could not be radiocarbon dated, the local geology suggests that it was probably derived from sediments that post-date Peorian loess deposition and is late Wisconsinan in age. This specimen extends the range of Paramylodon 350 km ro the northeast of the closest previously known locality. Its size is slightly larger than average for other late Pleisrocene (Rancholabrean) …
Effects Of Berberine, Chelerythrine, And Sanguinarine On Proliferation In Four Human Immortalized Cell Lines, David S. Senchina, Nisarg B. Shah, Marc G. Busch
Effects Of Berberine, Chelerythrine, And Sanguinarine On Proliferation In Four Human Immortalized Cell Lines, David S. Senchina, Nisarg B. Shah, Marc G. Busch
Journal of the Iowa Academy of Science: JIAS
Bloodroot (Sanguinaria canadensis L., Papaveraceae) is a plant rich in benzophenanchridine (isoquinoline) alkaloids such as sanguinarine and chelerychrine. Both isolated alkaloids and whole-tissue rhizome extracts have demonstrated in vitro anticarcinogenic (antiproliferacive) activity in limited immortalized cell culture models, but the relative contribution of various alkaloid constituents to whole-tissue extract activity, and whether or not various alkaloids may act synergistically, has not been investigated. We challenged four immortalized cell lines (Jurkat, K562, Ramos, U937) with various doses of chelerythrine, sanguinarine, and berberine (a structurally and functionally similar alkaloid absent from bloodroot), alone and in all possible combinations, and measured proliferation …
Perspectives: Developing And Defining Both Science And Science Education As Disciplines, Robert E. Yager
Perspectives: Developing And Defining Both Science And Science Education As Disciplines, Robert E. Yager
Journal of the Iowa Academy of Science: JIAS
The six "domains" have been identified as features for the "doing" of science. These six are: Concept, Process, Creativity, Attitude, Application, and Worldview. They are offered to affect teaching, student learning, as well as a new way of defining science. Concepts and Processes often are the only two typically used to define school and college science content; Creativity and Positive Attitudes are added as two "enabling" domains; a fifth Domain is offered as a focus on the Application of typical concepts and process skills. It is the Domain where and how most people live and operate! The sixth Domain is …
Iowa Academy Of Science: The New Bulletin, V08n4, Winter 2012, Iowa Academy Of Science
Iowa Academy Of Science: The New Bulletin, V08n4, Winter 2012, Iowa Academy Of Science
New Bulletin
Inside This Issue:
--Message from the Executive Director
--ISTS Fall Conference Photo Album
--New Energy Research Program Creates Educational Opportunities
--125th Annual Meeting of the Iowa Academy of Science
--eCYBERMISSION Seeks Volunteers—Partners with IAS
--Iowa NASA EPSCoR News
--Using Constructivist Theory: The Next Generation of Standards for K-12 Science
--IAS Awarded Environmental Literacy Capacity Grant
--Announcements, Events & Deadlines