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Articles 78961 - 78990 of 715204
Full-Text Articles in Entire DC Network
Keepers Of The Earth Lessons Overview, Tallgrass Prairie Center, University Of Northern Iowa
Keepers Of The Earth Lessons Overview, Tallgrass Prairie Center, University Of Northern Iowa
Open Educational Resources
Lessons adapted form the book Keepers of the Earth : Native American stories and environmental activities for children by Michael J. Caduto and Joseph Bruchac with different activities for grades Kindergarten through 12th grade.
Bee Busy, Tallgrass Prairie Center, University Of Northern Iowa
Bee Busy, Tallgrass Prairie Center, University Of Northern Iowa
Open Educational Resources
Lessons adapted form the book Keepers of the Earth : Native American stories and environmental activities for children by Michael J. Caduto and Joseph Bruchac focusing on pollination and seed formation in plants for grades 2 through 5.
Friend For All Seasons, Tallgrass Prairie Center, University Of Northern Iowa
Friend For All Seasons, Tallgrass Prairie Center, University Of Northern Iowa
Open Educational Resources
Lessons adapted form the book Keepers of the Earth : Native American stories and environmental activities for children by Michael J. Caduto and Joseph Bruchac focusing on the seasons and the way plants react to the changes for grades kindergarten through 5.
Helping Species In Need, Tallgrass Prairie Center, University Of Northern Iowa
Helping Species In Need, Tallgrass Prairie Center, University Of Northern Iowa
Open Educational Resources
Lessons adapted form the book Keepers of the Earth : Native American stories and environmental activities for children by Michael J. Caduto and Joseph Bruchac focusing on endangered or threatened species for grades 7 through 12.
Rock To Rock, Tallgrass Prairie Center, University Of Northern Iowa
Rock To Rock, Tallgrass Prairie Center, University Of Northern Iowa
Open Educational Resources
Lessons adapted form the book Keepers of the Earth : Native American stories and environmental activities for children by Michael J. Caduto and Joseph Bruchac focusing on rocks for grades 4 through 7.
Taking Flight: North By South, Tallgrass Prairie Center, University Of Northern Iowa
Taking Flight: North By South, Tallgrass Prairie Center, University Of Northern Iowa
Open Educational Resources
Lesson adapted form the book Keepers of the Earth : Native American stories and environmental activities for children by Michael J. Caduto and Joseph Bruchac focusing on the migration of birds and the flyways in North America for grades 6 through 8.
Tree Peeps, Tallgrass Prairie Center, University Of Northern Iowa
Tree Peeps, Tallgrass Prairie Center, University Of Northern Iowa
Open Educational Resources
Lesson adapted form the book Keepers of the Earth : Native American stories and environmental activities for children by Michael J. Caduto and Joseph Bruchac focusing on conservation and land stewardship for grades 7 through 12.
Wildflower Season, Tallgrass Prairie Center, University Of Northern Iowa
Wildflower Season, Tallgrass Prairie Center, University Of Northern Iowa
Open Educational Resources
Lesson adapted form the book Keepers of the Earth : Native American stories and environmental activities for children by Michael J. Caduto and Joseph Bruchac focusing on the life cycle of wildflowers for grades Kindergarten through 2.
A Special Place, Tallgrass Prairie Center, University Of Northern Iowa
A Special Place, Tallgrass Prairie Center, University Of Northern Iowa
Open Educational Resources
Lesson adapted form the book Keepers of the Earth : Native American stories and environmental activities for children by Michael J. Caduto and Joseph Bruchac focusing on developing a relationship with the natural environment for grades Kindergarten through 2.
Nature Activities For Teachers Overview, Tallgrass Prairie Center, University Of Northern Iowa
Nature Activities For Teachers Overview, Tallgrass Prairie Center, University Of Northern Iowa
Open Educational Resources
A chart of potential activities for a range of grades from Kindergarten through 8 meant to connect teachers and students to nature.
Animal Trackers, Tallgrass Prairie Center, University Of Northern Iowa
Animal Trackers, Tallgrass Prairie Center, University Of Northern Iowa
Open Educational Resources
Outlines an activity for grades Kindergarten to 8 about the tracks animals make.
Before & After, Tallgrass Prairie Center, University Of Northern Iowa
Before & After, Tallgrass Prairie Center, University Of Northern Iowa
Open Educational Resources
An outline of an activity for grades Kindergarten through 8 to view changes in nature through time.
Big Wind Blows, Tallgrass Prairie Center, University Of Northern Iowa
Big Wind Blows, Tallgrass Prairie Center, University Of Northern Iowa
Open Educational Resources
An outline of an activity for grades Kindergarten through 8 to encourage thinking about nature and providing physical activity.
Decomp Tag, Tallgrass Prairie Center, University Of Northern Iowa
Decomp Tag, Tallgrass Prairie Center, University Of Northern Iowa
Open Educational Resources
An outline of an activity for grades 1 through 8 exploring decomposition through a game with physical activity.
Geo-Mapping, Tallgrass Prairie Center, University Of Northern Iowa
Geo-Mapping, Tallgrass Prairie Center, University Of Northern Iowa
Open Educational Resources
An outline of an activity for grades 6 and 7 to map out habitats or ecosystems in an area.
Is This A Plant?, Tallgrass Prairie Center, University Of Northern Iowa
Is This A Plant?, Tallgrass Prairie Center, University Of Northern Iowa
Open Educational Resources
An outline of an activity for grades 1 through 6 about identifying plants.
Patterns In Nature, Tallgrass Prairie Center, University Of Northern Iowa
Patterns In Nature, Tallgrass Prairie Center, University Of Northern Iowa
Open Educational Resources
No abstract provided.
Covid Learning Loss: A Call To Action, Nathan D. Grawe
Covid Learning Loss: A Call To Action, Nathan D. Grawe
Numeracy
The COVID-19 pandemic and policy responses designed to mitigate transmission have caused deep and persistent mathematics learning loss among K–12 students. While initial data might have been read optimistically as a blip that would reverse once schools returned to normal, 2023 data from the National Assessment of Educational Progress (NAEP) show that losses persist. While the NAEP does not directly measure quantitative reasoning (QR), the data present a disturbing picture for QR instruction and call for new lines of research that inform QR pedagogical response.
Bite-Sized Quantitative Reasoning Essays: A Review Of Numbers Don’T Lie: 71 Stories To Help Us Understand The Modern World (2020), By Vaclav Smil, Samuel L. Tunstall
Bite-Sized Quantitative Reasoning Essays: A Review Of Numbers Don’T Lie: 71 Stories To Help Us Understand The Modern World (2020), By Vaclav Smil, Samuel L. Tunstall
Numeracy
In Numbers Don’t Lie: 71 Stories to Help Us Understand the Modern World (2020), Vaclav Smil draws on his interdisciplinary background in science, public policy, and history to provide readers with 71 short essays that help us better understand aspects of the world–including its people, environment, energy consumption, and present crises (among other things). In most of his essays, Smil utilizes both data and reasoning with data to shed light on diverse topics, with issues ranging from happiness rankings and vaccine payoffs to chicken production and diesel engines. Though the book arguably has some flaws, its easy-to-digest essays–many of which …
Smartphone Use In Financial Management Among Women’S Informal Saving Groups In Dodoma, Tanzania, Madina H. Juma, Jarkko Suhonen, Nasibu Rajabu Mramba, Matti Tedre, Alsen F. Kapinga
Smartphone Use In Financial Management Among Women’S Informal Saving Groups In Dodoma, Tanzania, Madina H. Juma, Jarkko Suhonen, Nasibu Rajabu Mramba, Matti Tedre, Alsen F. Kapinga
The African Journal of Information Systems
Diffusion of smartphone technology has created multiple opportunities for economic development. This research investigated the use of smartphones in financial management among women’s informal saving groups in Dodoma, Tanzania. Qualitative data were collected from 10 groups, derived from 15 interviews and 3 focus group discussions (FGDs) with 22 participants and thematic analysis was done. The findings revealed that research participants were using smartphones to access WhatsApp, the camera, mobile money applications and the calculator for coordination, recording, calculation, and payment. It was also found that untrustworthy communications, high charges and mobile fraud were challenges experienced by the groups. Familiarity, ease …
Fostering Human Dimension Of Smart Cities: Lessons From Jakarta For Nusantara, Indonesia’S New Capital City In The Making, Wicaksono Sarosa, Nurulitha Andini Susetyo, Marsa Nur Aulianisa, Mahbub Ridhoo Maulaa, Pradamas Giffary
Fostering Human Dimension Of Smart Cities: Lessons From Jakarta For Nusantara, Indonesia’S New Capital City In The Making, Wicaksono Sarosa, Nurulitha Andini Susetyo, Marsa Nur Aulianisa, Mahbub Ridhoo Maulaa, Pradamas Giffary
Smart City
A city’s problems often arise as the population grows and urbanization happens. This process is linear to the development of information-and-communication technologies (ICT), especially in urban areas. As a result, cities have adopted an initiative to solve the problems which are popularly known as the smart city. Over decades, the idea of a smart city has evolved from a mere technological modernization to advanced utilization through community involvement. However, in practice, smart city ideas and initiatives often put a heavy emphasis on technical aspects and ignored the more human side, which has caused a digital divide. This paper argues that …
Cytochrome P450 Gene Families: Role In Plant Secondary Metabolites Production And Plant Defense, Panchali Chakraborty, Ashok Biswas, Susmita Dey, Tuli Bhattacharjee, Swapan Chakrabarty
Cytochrome P450 Gene Families: Role In Plant Secondary Metabolites Production And Plant Defense, Panchali Chakraborty, Ashok Biswas, Susmita Dey, Tuli Bhattacharjee, Swapan Chakrabarty
Michigan Tech Publications
Cytochrome P450s (CYPs) are the most prominent family of enzymes involved in NADPH- and O2-dependent hydroxylation processes throughout all spheres of life. CYPs are crucial for the detoxification of xenobiotics in plants, insects, and other organisms. In addition to performing this function, CYPs serve as flexible catalysts and are essential for producing secondary metabolites, antioxidants, and phytohormones in higher plants. Numerous biotic and abiotic stresses frequently affect the growth and development of plants. They cause a dramatic decrease in crop yield and a deterioration in crop quality. Plants protect themselves against these stresses through different mechanisms, which are accomplished by …
C···O And Si···O Tetrel Bonds: Substituent Effects And Transfer Of The Sif3 Group, Zhihao Niu, Qiaozhuo Wu, Qingzhong Li, Steve Scheiner
C···O And Si···O Tetrel Bonds: Substituent Effects And Transfer Of The Sif3 Group, Zhihao Niu, Qiaozhuo Wu, Qingzhong Li, Steve Scheiner
Chemistry and Biochemistry Faculty Publications
The tetrel bond (TB) between 1,2-benzisothiazol-3-one-2-TF3-1,1-dioxide (T = C, Si) and the O atom of pyridine-1-oxide (PO) and its derivatives (PO-X, X = H, NO2, CN, F, CH3, OH, OCH3, NH2, and Li) is examined by quantum chemical means. The Si···O TB is quite strong, with interaction energies approaching a maximum of nearly 70 kcal/mol, while the C···O TB is an order of magnitude weaker, with interaction energies between 2.0 and 2.6 kcal/mol. An electron-withdrawing substituent on the Lewis base weakens this TB, while an electron-donating group has the opposite …
Thieno[3,4-D]Pyrimidin-4(3h)-Thione: An Effective, Oxygenation Independent, Heavy-Atom-Free Photosensitizer For Cancer Cells, Luis A. Ortiz-Rodríguez, Sean J. Hoehn, Heather J. Folkwein, Liraz Levi, Carlos E. Crespo-Hernández
Thieno[3,4-D]Pyrimidin-4(3h)-Thione: An Effective, Oxygenation Independent, Heavy-Atom-Free Photosensitizer For Cancer Cells, Luis A. Ortiz-Rodríguez, Sean J. Hoehn, Heather J. Folkwein, Liraz Levi, Carlos E. Crespo-Hernández
Faculty Scholarship
All-organic, heavy-atom-free photosensitizers based on thionation of nucleobases are receiving increased attention because they are easy to make, noncytotoxic, work both in the presence and absence of molecular oxygen, and can be readily incorporated into DNA and RNA. In this contribution, the DNA and RNA fluorescent probe, thieno[3,4-d]pyrimidin-4(1H)-one, has been thionated to develop thieno[3,4-d]pyrimidin-4(3H)-thione, which is nonfluorescent and absorbs near-visible radiation with about 60% higher efficiency. Steady-state absorption and emission spectra are combined with transient absorption spectroscopy and CASPT2 calculations to delineate the electronic relaxation mechanisms of both pyrimidine derivatives in aqueous and acetonitrile solutions. It is demonstrated that thieno[3,4-d]pyrimidin-4(3H)-thione …
Table Of Contents, The Editors
Propagation Of Hydraulic Fractures In Thin Interbedded Tight Sandstones, Yang Fan, Mei Wenbo, Li Liang, Sun Zening, An Qi, Yang Qi, Lu Meiquan, Yang Ruiyue
Propagation Of Hydraulic Fractures In Thin Interbedded Tight Sandstones, Yang Fan, Mei Wenbo, Li Liang, Sun Zening, An Qi, Yang Qi, Lu Meiquan, Yang Ruiyue
Coal Geology & Exploration
Thin interbedded tight sandstone reservoirs are characterized by strong vertical heterogeneity due to the superimposed pattern of the deposited sandstones and mudstones. As a result, hydraulic fractures are difficult to propagate vertically to effectively connect the reservoirs. Given this, ascertaining the vertical propagation patterns of hydraulic fractures in thin interbeds is of great significance for the development of thin interbedded tight sandstones. With the thin interbedded tight sandstone reservoirs of the lower Shihezi Formation in the Linxing block, Ordos Basin as a case study, this study built the fracture propagation model of these sandstones. Accordingly, it analyzed the effects of …
Iron Occurrence In Coal Measures And Its Release Mechanism During Water-Rock Interactions: Taking A Mine In The Eastern Grassland As An Example, Wang Tiantian
Coal Geology & Exploration
The mine water with iron out of limit corrodes the water distribution pipeline and the industrial equipment, thereby damaging the liver of human body, and further threatening the human health. The enrichment or dilution of iron in mine water is determined by the iron content and its occurrence in coal measures, as well as its release mechanism during water-coal and water-rock interactions. Herein, 18 groups of coal and rock samples were collected from a mine in the eastern grassland, and had the iron content, occurrence and carrier in the coal measure analyzed with an inductively coupled plasma mass spectrometry (ICP-MS), …
Change Detection Of Open-Pit Mines Based On Fm-Unet++ And Gf-2 Satellite Images, Du Shouhang, Li Wei, Xing Jianghe, Zhang Chengye, She Changchao, Wang Shaoyu, Li Jun
Change Detection Of Open-Pit Mines Based On Fm-Unet++ And Gf-2 Satellite Images, Du Shouhang, Li Wei, Xing Jianghe, Zhang Chengye, She Changchao, Wang Shaoyu, Li Jun
Coal Geology & Exploration
Automatic extraction of land use change information in open-pit mines using the remote sensing and deep learning technology is of great significance for the mining monitoring and ecological environmental protection. A novel deep learning model FM-UNet++ was constructed for the change of land use types in complex and heterogeneous mining scenarios, and the automatic change detection of open-pit mines was achieved using the Gaofen-2 (GF-2) satellite images. Firstly, the change detection dataset of open-pit mine was produced through data surveys and visual interpretation, which was augmented by data enhancement. Secondly, the FM-UNet++ for open-pit mine change detection was constructed by …
Here Comes The Strain: Analyzing Defensive Pass Rush In American Football With Player Tracking Data, Quang Nguyen, Ronald Yurko, Gregory J. Matthews
Here Comes The Strain: Analyzing Defensive Pass Rush In American Football With Player Tracking Data, Quang Nguyen, Ronald Yurko, Gregory J. Matthews
Mathematics and Statistics: Faculty Publications and Other Works
In American football, a pass rush is an attempt by the defensive team to disrupt the offense and prevent the quarterback (QB) from completing a pass. Existing metrics for assessing pass rush performance are either discrete-time quantities or based on subjective judgment. Using player tracking data, we propose STRAIN, a novel metric for evaluating pass rushers in the National Football League (NFL) at the continuous-time within-play level. Inspired by the concept of strain rate in materials science, STRAIN is a simple and interpretable means for measuring defensive pressure in football. It is a directly-observed statistic as a function of two …
Cambrian Explosion Condensed: High-Precision Geochronology Of The Lower Wood Canyon Formation, Nevada, Lyle L. Nelson, James L. Crowley, Emily F. Smith, Darin M. Schwartz, Eben B. Hodgin, Mark D. Schmitz
Cambrian Explosion Condensed: High-Precision Geochronology Of The Lower Wood Canyon Formation, Nevada, Lyle L. Nelson, James L. Crowley, Emily F. Smith, Darin M. Schwartz, Eben B. Hodgin, Mark D. Schmitz
Geosciences Faculty Publications and Presentations
The geologically rapid appearance of fossils of modern animal phyla within Cambrian strata is a defining characteristic of the history of life on Earth. However, temporal calibration of the base of the Cambrian Period remains uncertain within millions of years, which has resulted in mounting challenges to the concept of a discrete Cambrian explosion. We present precise zircon U–Pb dates for the lower Wood Canyon Formation, Nevada. These data demonstrate the base of the Cambrian Period, as defined by both ichnofossil biostratigraphy and carbon isotope chemostratigraphy, was younger than 533 Mya, at least 6 My later than currently recognized. This …