Galvin T.J.,University of Western Sydney |
Filipovic M.D.,University of Western Sydney |
Crawford E.J.,University of Western Sydney |
Wong G.,University of Western Sydney |
And 12 more authors.
Astrophysics and Space Science | Year: 2012
A series of new radio-continuum (λ=20 cm) mosaic images focused on the NGC 300 galactic system were produced using archived observational data from the VLA and/or ATCA. These new images are both very sensitive (rms =60 μJy) and feature high angular resolution (<10 ″). The most prominent new feature is the galaxy's extended radio-continuum emission, which does not match its optical appearance. Using these newly created images a number of previously unidentified discrete sources have been discovered. Furthermore, we demonstrate that a joint deconvolution approach to imaging this complete data-set is inferior when compared to an immerge approach. © 2012 Springer Science+Business Media B.V.
Millar W.C.,James Cook University |
Millar W.C.,Grand Rapids Community College |
White G.L.,Charles Sturt University |
Filipovic M.D.,James Cook University |
Filipovic M.D.,University of Western Sydney
Serbian Astronomical Journal | Year: 2012
We present the results of a study of observational and identification techniques used for surveys and spectroscopy of candidate supernova remnants (SNRs) in the Sculptor Group galaxy NGC300. The goal of this study was to investigate the reliability of using [S II]:Hα ≥ 0.4 in optical SNR surveys and spectra as an identifying feature of extra-galactic SNRs (egSNRs), and also to investigate the effectiveness of the observing techniques (which are hampered by seeing conditions and telescope pointing errors) using this criterion in egSNR surveys and spectrographs. This study is based on original observations of these objects and archival data obtained from the Hubble Space Telescope which contained images of some of the candidate SNRs in NGC300. We found that the reliability of spectral techniques may be questionable and very high-resolution images may be needed to confirm a valid identification of some egSNRs.
News Article | October 28, 2016
DeWys Manufacturing Inc., a West – Michigan based metal solutions company, is pleased to announce their involvement with the National Manufacturing Day event for the fourth year in a row. By opening the doors to the public, this helped to promote the skilled trade industry and allow DeWys Mfg. to promote the advanced manufacturing processes they provide their customers. This year manufacturing week was celebrated in the West Michigan area from October 2nd through October 8th. A total of 3,100 students visited a variety of manufacturing facilities to gain knowledge, participate in tours and hands on activities to better understand the diverse fields in the industry. DeWys Mfg. hosted 155 students from Kent Intermediate School District, Discover Elementary, and Ridge Park Charter Academy. The students received a tour of the shop, participated in a team building activity, and explored the MCAM trailer provided by Grand Rapids Community College. Along with the tours given to students throughout the week, DeWys Manufacturing hosted 15 math and science teachers organized through the Kent ISD called “Teachers in the Industry.” This event consisted of the teachers taking a mechanical reasoning test to show the initial steps taken in the hiring process, a short video on DeWys Manufacturing, and a question and answer panel with four of the DeWys team members. This allowed the teachers to learn from the team members about career paths in manufacturing. Manufacturing Week in Grand Rapids was unique compared to past years thanks to the City of Grand Rapids and the Mayor Rosalynn Bliss. An official proclamation was created for 2016 declaring October 2nd through October 8th as Manufacturing Week. As stated in the official proclamation, “Whereas the city of Grand Rapids joins with the State of Michigan to celebrate Manufacturing Week and recognize our manufacturers for their commitment to creating jobs and a prosperous economy in West Michigan.” DeWys Manufacturing is proud to be an active participant in the raising awareness of the advanced manufacturing career opportunities to students in our community. About DeWys DeWys (pronounced De-Wise) Manufacturing provides precision metal fabrication to a range of clients from commercial equipment, office furniture, medical supply, and many more. From its manufacturing facility in West Michigan, the company provides a wide range of metal production and assembly capabilities to more than 160 clients in Michigan, Indiana, Wisconsin, Ohio, and several other areas of the United States. For additional information, visit dewysmfg.com or contact DeWys Mfg. at (616) 677-5281.
Coburn K.M.,Grand Valley State University |
Hardy D.A.,The University of Tampa |
Patterson M.G.,The University of Tampa |
McGraw S.N.,The University of Tampa |
And 9 more authors.
Inorganica Chimica Acta | Year: 2016
We report here the synthesis and study of a multipodal ligand bearing three CMPO units attached to a trialkylphosphine oxide cap along with the resultant Ln3+, Th4+ and UO2 2+ metal complexes. This tripodal ligand demonstrates extraction efficiencies of 47% and 44% for the actinide species Th(NO3)4 and UO2(NO3)2 out of 1 M nitric acid into a solution of dichloromethane, while all lanthanide nitrates were extracted with relatively low efficiencies. Further extraction studies utilizing 5 M nitric acid solutions resulted in nearly quantitative actinide extraction. The ability of this ligand to sensitize the metal-centered luminescence of Eu3+ and Tb3+ in DMSO solutions was also investigated. Finally, possible conformations for the structure of the [La(NO3)-ligand]2+ complex were calculated using density functional theory. © 2016 Elsevier B.V. All rights reserved.
Roychoudhury S.,Procter and Gamble |
Roychoudhury S.,Amgen |
Makin K.,Procter and Gamble |
Makin K.,Grand Rapids Community College |
And 3 more authors.
Microbial Drug Resistance | Year: 2016
Selection of resistant strains in Streptococcus pneumoniae was studied in vitro with nemonoxacin, a novel nonfluorinated quinolone (NFQ), in comparison with quinolone benchmarks, ciprofloxacin, garenoxacin, and gatifloxacin. In stepwise resistance selection studies, a 256-fold loss of potency was observed after three to four steps of exposure to ciprofloxacin or garenoxacin. In contrast, the loss of potency was limited to eightfold after three steps of exposure to nemonoxacin and repeated attempts to isolate highly resistant organisms after four steps of exposure yielded isolates that could not be subcultured in liquid medium. The quinolone resistance-determining regions of the target genes, parC, parE, gyrA, and gyrB, were analyzed through DNA sequencing. Known mutations, especially in the hotspots of parC and gyrA, were selected with exposure to garenoxacin, ciprofloxacin, and gatifloxacin. In contrast, mutations selected with nemonoxacin were limited to GyrA, GyrB, and ParE, sparing ParC, which is known as a key driver of resistance in clinical isolates of S. pneumoniae. This observation is consistent with previous data using other NFQs, which showed no loss of potency due to ParC mutations in clinical isolates. This apparently unique feature of nemonoxacin is potentially attributable to the structural uniqueness of the NFQs, distinguishing them from the fluoroquinolones that are commonly prescribed for infections by S. pneumoniae. © Siddhartha Roychoudhury et al., 2016; Published by Mary Ann Liebert, Inc. 2016.
News Article | November 14, 2016
For the eighth and final time, First Lady Michelle Obama will invite the 12 winners of the National Arts and Humanities Youth Program Award to the White House on November 15th, to recognize their programs’ effectiveness in developing young people’s learning and life skills by engaging them in the arts or humanities. Among the 12 awardees are two organizations from Michigan – West Michigan Center for Arts + Technology (WMCAT) and Sphinx Organization. The two Michigan community-based organizations from across the country were chosen from a pool of 251 nominations and 50 finalists to receive the highest honor awarded to such programs in the United States. The awardees will be recognized by Mrs. Obama for using engagement in the arts and the humanities to generate a wide range of positive outcomes, including increases in academic achievement; growth in graduation and college enrollment rates; and improvements in literacy and language abilities, communication and performance skills, and cultural awareness. First Lady Michelle Obama will recognize WMCAT for its Teen Arts + Tech Program, which is a best practice, out-of-school time experience that engages high school students in the practical application of design thinking through hands-on learning in arts and tech labs. Media interested in covering the event must RSVP by sending an e-mail to firstladypress(at)who(dot)eop(dot)gov between Thursday, November 10 at 5 pm EST and Monday, November 14, at 5:00 PM EST . Members of the press who do not have a White House hard pass must include their name, Social Security number, date of birth, country of citizenship, current city/state of residence, and gender. Please “cc:” iroman(at)metgroup(dot)com on this e-mail request. A watch party will be held locally at West Michigan Center for Arts + Technology, 98 Fulton St. E. #202, Grand Rapids, MI, 49503 from 2:00 p.m. to 3:15 p.m. EST with multiple students on hand for interviews. West Michigan’s, Keloni Seawood-Walton,17, will be at the White House tomorrow to receive the award from First Lady Michelle Obama on behalf of the West Michigan Center for Arts + Technology. The organization received the 2016 National Arts and Humanities Youth Program Award, the nation’s highest honor for its Teen Arts + Tech Program which is a best practice, out-of-school time experience that engages high school students in the practical application of design thinking through hands-on learning in arts and tech labs. “Having the chance to represent my peers in accepting this award from the First Lady of the United States in the White House is an experience that I’ll never forget,” said Keloni Seawood-Walton, WMCAT student. “It showed me that the power of programs like WMCAT’s to change kids’ lives is recognized and valued.” The award recognizes the country’s best after-school and out-of-school-time creative youth development programs for using engagement in the arts and the humanities to increase academic achievement, graduation rates, and college enrollment. “These amazing programs prove how effective creative youth development can be in changing lives and communities,” said Megan Beyer, executive director of the President’s Committee on the Arts and the Humanities. “They’re improving academic achievement and contributing to high school graduation rates, and they’re providing the opportunity for young people to build the 21st-century skills they need to succeed in school and in life.” Since 2005 the WMCAT Teen Arts + Tech Program has engaged more than 2,000 high school students in studio experiences in fine arts, technology and design. Our impact is illustrated through 95 percent of WMCAT teen students graduating high school on time with 85 percent being accepted to college. This past year 90 percent of teen students said WMCAT makes them believe they can be successful in college and career. The Teen Arts + Tech Program at WMCAT is grounded in design thinking and project based learning. In partnership with Grand Rapids Public Schools, WMCAT has empowered teens through learning studios such as Photography, Ceramics, and Leadership by Design. WMCAT encourages teens to elevate their voice and affect social change by applying their skills learned in the programs. In its 11th year of programming WMCAT has helped over 2,000 teens to achieve both academic and personal success. “Receiving the National Arts and Humanities Youth Program Award greatly expands our ability to share the incredible work and contributions of our teen students and our professional teaching artists. We are on a national stage with amazing programs from around the country! Now we have the chance to share the benefits of creative youth development, how working in WMCAT’s studios is expanding opportunity for teens in Grand Rapids, and how our community can support this kind of innovative and exciting work,” stated Daniel Williams, Executive Director of WMCAT, who was also present at the White House today to accept the award. First presented in 1998, the National Arts and Humanities Youth Program Award is the signature program of the President’s Committee on the Arts and the Humanities (PCAH). The awards are presented annually in partnership with the National Endowment for the Arts (NEA), the National Endowment for the Humanities (NEH), and the Institute of Museum and Library Services (IMLS). Seawood-Walton became a part of WMCAT while attending Grand Rapids Montessori School and graduated in spring 2016. She now is working part time as an apprentice at WMCAT’s Ambrose Print Shop while attending Grand Rapids Community College. During her time at WMCAT Seawood-Walton attended and was inspired by Photography and Fashion studios. Her work in the fashion design studio was part of a community fashion show that addressed bullying and stereotypes. The Teen Art + Tech Program applies the Design Thinking Process of Discover, Ideate, Experiment, Create, Refine, and Share in their projects. WMCAT’s leadership team deepened its connection with Stanford University’s Hasso Plattner Institute of Design by attending several design thinking intensives and coaching fellowships. These types of intentional programmatic decisions allowed WMCAT to better make long lasting and meaningful connections with students. Each student in 2015 was provided with 120 direct studio hours throughout the school year. Students are taught by exceptional nonprofit professionals and teaching artists that are vested in professional development while supporting each student’s needs. In addition to the national recognition bestowed by receipt of the prestigious award, WMCAT will also receive $10,000 to support its programming and engage more young people from the community. Nancy Hickey, chair of the WMCAT Board of Directors stated, “This recognition on a national level is so meaningful to WMCAT and our students. It is reflective of the incredible creativity, curiosity and talent of our teens and their teaching artists. We are grateful to be honored by the President’s Committee on the Arts and the Humanities and to contribute to best practices in creative youth development.” The National Arts and Humanities Youth Program Award is the nation’s highest honor for after-school arts and humanities programs. The award recognizes and supports outstanding programs that lay new pathways to creativity, expression, and achievement outside of the regular school day. These programs excite and engage a range of students, cultivating imagination, collaboration, discipline, and academic success—with demonstrable results. They also provide safe harbors after school, on weekends, and during the evenings for children and youth in some of our country’s most at-risk urban and rural settings. Created in 1982 by Executive Order, the President’s Committee on the Arts and the Humanities (PCAH) is an advisory committee to the White House on cultural issues. The PCAH works directly with the administration and the three primary cultural agencies—the National Endowment for the Arts (NEA), the National Endowment for the Humanities (NEH), and the Institute of Museum and Library Services (IMLS)—as well as with other federal partners and the private sector, to address policy questions in the arts and humanities, to initiate and support key programs in those disciplines, and to recognize excellence in the field. Its core areas of focus are arts and humanities education, cultural exchange, and community revitalization. Mrs. Obama, like other first ladies before her, serves as Honorary Chairman of the committee, which comprises both private and public members. For more information about WMCAT please visit wmcat.org. For more information about the National Arts and Humanities Youth Program Awards, visit http://www.pcah.gov.
Laureto P.J.,Western Michigan University |
Laureto P.J.,Grand Rapids Community College |
Barkman T.J.,Western Michigan University
Systematic Botany | Year: 2011
Solidago houghtonii Torrey & A. Gray ex Gray is a federally threatened polyploid plant species likely of hybrid origin. Several hypothesized combinations of parental species have been suggested but none have been phylogenetically tested. Additionally, it is unclear whether the species is of single or polytopic origin. To study the evolutionary history of S. houghtonii we sequenced four noncoding cpDNA loci (accD-psaI, psbA-trnH, trnL-trnF, rps16-trnQ), and the ITS and 3′ETS regions for four accessions of S. houghtonii, which span its geographic range, and 25 other species of Solidago including all sympatric species. Polymorphisms within the direct nrDNA sequences of all S. houghtonii accessions indicated the presence of multiple homoeologue types. These were separated by molecular cloning of the 3055 bp 3′ETS-ITS region, allowing us to positively link the ETS and ITS homoeologue types. Phylogenetic analyses of the nuclear and chloroplast datasets revealed incongruent topologies. Analysis of cloned nrDNA sequence data indicated that S. riddellii, S. ptarmicoides, and S. ohioensis have contributed to the nuclear genome of S. houghtonii. Analysis of cpDNA sequence data revealed the presence of multiple insertions/deletions that are shared by all accessions. The unique pattern of cpDNA indels was also recovered in S. gigantea. Phylogenetic analysis of the cpDNA sequence data and coded indels indicate S. gigantea is the maternal genome donor. However, we did not recover a S. gigantea nrDNA sequence type. Taken together, these data reveal both a single origin and a complex pattern of reticulation that is consistent not only with the hypothesized allohexaploid nature of this species, but also with chloroplast capture of cpDNA from an unexpected source through introgression. © Copyright 2011 by the American Society of Plant Taxonomists.
Millar W.C.,James Cook University |
Millar W.C.,Grand Rapids Community College |
White G.L.,University of Western Sydney |
Filipovic M.D.,James Cook University |
And 5 more authors.
Astrophysics and Space Science | Year: 2011
We present moderate-resolution (<5 Å) long-slit optical spectra of 51 nebular objects in the nearby Sculptor Group galaxy NGC 300 obtained with the 2. 3 meter Advanced Technology Telescope at Siding Spring Observatory, Australia. Adopting the criterion of [S ii]Total:Hα≥0. 4 to confirm supernova remnants (SNRs) from optical spectra, we find that of 28 objects previously proposed as SNRs from optical observations, 22 meet this criterion with six showing [S ii]Total:Hα of less than 0. 4. Of 27 objects suggested as SNRs from radio data, four are associated with the 28 previously proposed SNRs. Of these four, three (included in the 22 above) meet the criterion. In all, 22 of the 51 nebular objects meet the [S ii]Total:Hα criterion as SNRs while the nature of the remaining 29 objects remains undetermined by these observations. © 2010 Springer Science+Business Media B.V.
Oldenkamp R.E.,Grand Rapids Community College |
Douglas M.M.,Grand Rapids Community College
Great Lakes Entomologist | Year: 2011
In this study we show that in South Central Michigan (Pierce Cedar Creek Institute) eight ant species patrol bracken fern (Pteridium aquilinum) during the sensitive crozier growth stage. At times these ants remove herbivorous insects from rapidly expanding fronds. A new method for analyzing herbivory of bracken fern is employed to measure chewing damage to the fronds. Our results show that ants do in fact remove some herbivores from bracken fronds during the crozier stage; however, statistical analyses comparing the amount of chewing damage between treated and untreated fronds at the end of the growing season show no statistical difference.
Agency: NSF | Branch: Standard Grant | Program: | Phase: | Award Amount: 166.21K | Year: 2012
The goals of this project include increased student knowledge of gas chromatography-mass spectrometry (GC-MS) by adding hands-on laboratory experiences to chemistry courses and independent study projects at Grand Rapids Community College, development of GC-MS expertise for community college and high school faculty, and instrumentation experiences for high school students. Developed materials reflect workforce needs, delivered using a constructivist approach. The intellectual merit is the development of broadly applicable processes for integrating GC-MS into community college laboratory course curricula to enhance learning and interest. Professional development and summer camp opportunities enhance high school faculty and students understanding of GC-MS while demonstrating practical connections between science and technology, and serve as a model for high school-community college partnerships. Broader impacts include better prepared students through engaging hands-on science education, enhanced educational infrastructure, and a close partnership with local high schools.
The independent evaluation encompasses formative assessment of instructor content knowledge and engagement, coupled with assessment of student learning gains and attitudes toward science through review of course work, interviews and focus groups.