Digital Commons Network^™

Design And Characterization Of A 3d-Printed Attitude Control Thruster For An Interplanetary 6u Cubesat, Terry Stevenson, Glenn Lightsey

Small Satellite Conference

This paper describes the design and testing of a miniature, 3D-printed cold gas attitude control thruster for the NASA Ames Research Center BioSentinel mission, an interplanetary small spacecraft that will be launched on the EM-1 flight of SLS. Earth-orbiting small satellites typically use magnetic torque rods for momentum unloading, but these cannot be employed in interplanetary space due to the lack of a strong external magnetic field. ACS thrusters can be used to unload reaction wheels or used directly for attitude control, regardless of the external environment. By 3D printing the propellant tanks, pipes, and nozzles into a single component, …

Is Cortex Necessary?, Sean Allen-Hermanson

Animal Sentience

A key contention of Klein & Barron (2016) is that consciousness does not depend on cortical structures. A critical appraisal suggests they have overestimated the strength of their evidence.

Cellularized Satellites - A Small Satellite Instantiation That Provides Mission And Space Access Adaptability, Talbot Jaeger, Walter Mirczak, Bill Crandall

Small Satellite Conference

Small satellites are an exciting technology in the space industry today. For example, over half a dozen private companies have announced plans to build large networks of smallsats to provide remote-sensing imagery data to customers. While smallsats can provide advantages over traditional large satellites, satellites assembled from “building block” cells called satlets could add to those advantages. Through funding from the Phoenix program at the Defense Advanced Research Projects Agency (DARPA), NovaWurks is developing the cellularization of satellite technology as a way to dramatically decrease the cost of new space assets, while also enabling these assets to be incrementally upgradeable …

Activating Teachers’ Creativity And Moral Purpose In Science Education, Martin Westwell, Sonia Cooke

2009 - 2019 ACER Research Conferences

Over the last three years, the Scientist in Residence program (a collaboration between the Department of Education and Child Development, and Flinders University) investigated a model of professional learning in science education that capitalised upon teachers’ moral purpose and drove their creativity. Insight into how teachers transformed their science classrooms is provided through examples of activities, work samples and clips of teachers describing how they changed their practice and how that, in turn, changed the engagement and achievement of the children. These resources will serve to illustrate some of the principles of practice that the teachers drew upon. In particular, …

Why Is A Steam Curriculum Perspective Crucial To The 21st Century?, Peter Charles Taylor

2009 - 2019 ACER Research Conferences

Well-recognised as a powerful driver of national economic growth, STEM lies at the heart of calls worldwide for educational reform. In Australia, Chief Scientists are calling for STEM education to better engage students on STEM-related career pathways. In the USA, STEM educators are being urged to produce graduates with creative and innovative abilities required of an increasingly high-tech workforce. However, an equally important challenge for STEM education is to prepare young people with general capabilities for active participation in community and professional forums for addressing ethical issues associated with the global impact of science and technology. Education for sustainable development …

Who Is A Person? Whoever You Want It To Be, Gwen J. Broude

Animal Sentience

Rowlands provides an expanded definition of personhood that preserves the requirement of unity of mental life from the orthodox definition but argues that implicit unity of mind is sufficient for conferring personhood. This allows more or all animals to be considered persons. Implicit unity of mind may be a bridge too far for those who endorse the orthodox account of personhood, and for good reasons. More fundamentally, who gets to decide what personhood entails or that personhood per se matters to such other issues as who receives legal or moral status and consideration? Perhaps we should worry less about definitions …

Small Sat At 30: Trends, Patterns, And Discoveries, Michael T. Hicks, Carlos Niederstrasser

Small Satellite Conference

Thirty years of the SmallSat Conference have produced a wealth of papers spanning technical, business, and market topics relevant to small satellites. Thanks to the online availability of every paper going back to the first SmallSat Conference in 1987, it is possible to analyze the proceedings of the conference to ascertain industry trends, development patterns, and technical discoveries. How has the focus of technology and mission paper topics changed over three decades? How has the participation of organizations, and the ratio of education, commercial, military, civil, and domestic/international involvement evolved? In this paper we provide the results of our analysis, …

Safe Harbors: A Comparative Analysis Of Dredging Regulation In New England, Tom Fales

Ocean and Coastal Law Journal

Searsport is home to the second-busiest industrial port in Maine. Imports include heating oil and road salt and come from as far away as Africa. Situated at the mouth of the Penobscot River and linked to northern Maine and Montreal by rail, Searsport’s Mack Point Marine Intermodal Cargo Terminal (hereinafter “Mack Point”) is a significant international trade hub and source of jobs in Maine’s Midcoast Region. Since 2000, a plan to deepen the harbor around Mack Point has stalled. Supporters of the plan, including business groups, argue that deepening the harbor, or dredging, is necessary to increase and streamline the …

Crabs, Clams, And The Corps: Regional Realities And The Federal Framework, Jessica Hollenkamp

Ocean and Coastal Law Journal

Since the invasive European green crab was first detected in the Gulf of Maine over one hundred years ago, its population has dramatically increased, resulting in devastating consequences. This predatory species is remarkably resilient and voracious, feeding on hard- and soft-shell clams, blue mussels, and other bivalve shellfish. There are even reports that the green crab poses a threat to Maine’s most lucrative fishery – the lobster. As the green crab makes its nests in the intertidal zone and subtidal habitats, it destroys native resources such as eelgrass beds and mudflats. Maine’s economy relies heavily on its well-known fishing industry …

American Eel: A Symposium. Session Six, Dr. William Bradnee Chambers, Dr. David Freestone, Charles H. Norchi, Jeffrey A. Thaler, Dr. David Vanderzwaag

Ocean and Coastal Law Journal

Session Six concludes with a Keynote Address that provides a global perspective on the conservation of migratory species, delivered by the Executive Secretary of the CMS, followed by a robust discussion of projections and pathways.

American Eel: A Symposium. Session Five, Charles Norchi, Dr. David Vanderzwaag, Dr. John Dettmers, Rachel White Sears, Laura Hussey-Bondt, Mike Waine

Ocean and Coastal Law Journal

Session Five elaborates law and policy frameworks for the conservation and sustainability of American eels from both the United States and Canada.

American Eel: A Symposium. Session Four, Dr. William Bradnee Chambers, Dr. David Freestone, Dr. Matthew Gollock, Dr. Alan Walker

Ocean and Coastal Law Journal

Session Four considers lessons from European eel research and conservation.

American Eel: A Symposium. Session Three, Jeff Thaler, Steven Shepard, Dr. Gail Wippelhauser, Jon Truebe

Ocean and Coastal Law Journal

Session Three panelists provide an overview of threats to eels.

American Eel: A Symposium. Session Two, Dr. David Vanderzwaag, Shelley Denny, Amber Giles, David Dow, Mitch Feigenbaum, Genna Carey

Ocean and Coastal Law Journal

Session Two's panel focuses on the socio-economic and cultural significance of American eels. The discussion covers an overview of eel fisheries, socio-economic uses, international eel markets, dominance of Asian aquaculture, and the role of the American eel for aquaculture seed stock and for the consumption market.

American Eel: A Symposium. Session One, Dr. James Mccleave, Dr. David Cairns, Dr. Barry Costa-Pierce

Ocean and Coastal Law Journal

Session One's panel covers an overview of American eel scientific research and understandings.

American Eel: A Symposium. Welcome Session, David Freestone, Senator Wilfred Moore, David Vanderzwaag

Ocean and Coastal Law Journal

No abstract provided.

External Morphology Of The Eggs Of Asplanchnopus Multiceps (Schrank, 1793) (Rotifera): Solving The 150-Year-Old Case Of Mistaken Identity, Elizabeth S. Wurdak

Biology Faculty Publications

This report calls into question the practice of passing along illustrations and anatomical descriptions from the literature without scrutiny. An error made by Leydig (Zeischrift für wissenschaftliche Zoologie 6:1–120, 1854) in characterizing the egg of Asplanchnopus multiceps was perpetuated in authoritative publications (Hyman, The Invertebrates: Acanthocephala, Aschelminthes, and Entoprocta. The pseudocoelomate Bilateria, McGraw-Hill Book Company, New York, 1951; Voigt, Rotatoria: Die Rädertiere Mitteleuropas, Gebrüder Borntraeger, Berlin-Nikolassee, 1957; Ruttner-Kolisko, Plankton rotifers, biology and taxonomy supplementary edition of Die Binnengewässer 26, Stuttgart, 1974; Koste, Rotatoria: Die Rädertiere Mitteleuropas begründet von Max Voigt. Monogononta 2. Auflage neubearbeitet von Walter Koste, Gebrüder Borntraeger, Berlin, …

Discovery Of Infants' Airway Microbiomes May Help Predict Lung Disease, Jeff Hansen

Browse All News

No abstract provided.

National Academy Of Medicine President Presenting At Annual Cardiovascular Tissue Engineering Seminar, Uab Heersink School Of Medicine News

Browse All News

No abstract provided.

Closed-State Inactivation Involving An Internal Gate In Kv4.1 Channels Modulates Pore Blockade By Intracellular Quaternary Ammonium Ions., Jeffrey D. Fineberg, Tibor G. Szanto, Gyorgy Panyi, Manuel Covarrubias

Department of Neuroscience Faculty Papers

Voltage-gated K(+) (Kv) channel activation depends on interactions between voltage sensors and an intracellular activation gate that controls access to a central pore cavity. Here, we hypothesize that this gate is additionally responsible for closed-state inactivation (CSI) in Kv4.x channels. These Kv channels undergo CSI by a mechanism that is still poorly understood. To test the hypothesis, we deduced the state of the Kv4.1 channel intracellular gate by exploiting the trap-door paradigm of pore blockade by internally applied quaternary ammonium (QA) ions exhibiting slow blocking kinetics and high-affinity for a blocking site. We found that inactivation gating seemingly traps benzyl-tributylammonium …

Agenda, University Of South Florida St. Petersburg Campus Board Meeting, August 9, 2016, University Of South Florida St. Petersburg Campus Board

Campus Board Agendas, Minutes, and Supporting Documents

The agenda for the University of South Florida St. Petersburg Campus Board meeting held on August 9, 2016.

Oparil Wins 2016 Excellence Award In Hypertension Research Award, Uab Heersink School Of Medicine News

Browse All News

No abstract provided.

Copper(Ii) Ions Increase Plasminogen Activator Inhibitor Type 1 Dynamics In Key Structural Regions That Govern Stability, Joel C. Bucci, Morten Beck Trelle, Carlee S. Mcclintock, Tihami Qureshi, Thomas J.D. Jørgensen, Cynthia B. Peterson

Faculty Publications

© 2016 American Chemical Society. Plasminogen activator inhibitor type 1 (PAI-1) regulates the fibrinolysis pathway by inhibiting the protease activity of plasminogen activators. PAI-1 works in concert with vitronectin (VN), an extracellular protein that aids in localization of active PAI-1 to tissues. The Peterson laboratory demonstrated that Cu(II) and other transition metals modulate the stability of PAI-1, exhibiting effects that are dependent on the presence or absence of the somatomedin B (SMB) domain of VN. The study presented here dissects the changes in molecular dynamics underlying the destabilizing effects of Cu(II) on PAI-1. We utilize backbone amide hydrogen/deuterium exchange monitored …

Ammonia Binding In The Second Coordination Sphere Of The Oxygen-Evolving Complex Of Photosystem Ii, David J. Vinyard, Mikhail Askerka, Richard J. Debus, Victor S. Batista, Gary W. Brudvig

Faculty Publications

© 2016 American Chemical Society. Ammonia binds to two sites in the oxygen-evolving complex (OEC) of Photosystem II (PSII). The first is as a terminal ligand to Mn in the S2 state, and the second is at a site outside the OEC that is competitive with chloride. Binding of ammonia in this latter secondary site results in the S2 state S = 5/2 spin isomer being favored over the S = 1/2 spin isomer. Using electron paramagnetic resonance spectroscopy, we find that ammonia binds to the secondary site in wild-type Synechocystis sp. PCC 6803 PSII, but not in D2-K317A mutated …

Micro-Rna Profiling In Ovarian Cancer, Jin Q. Cheng

USF Patents

MicroRNAs (miRNAs) represent a novel class of genes that function as negative regulators of gene expression and have recently been implicated in several cancers. However, aberrant miRNA expression and its clinicopathological significance in human ovarian cancer have not been well documented. Numerous miRNAs are shown altered in human ovarian cancer, significantly miR-214, -199a*, -200a, -100, -125b, -30d, -221, -222, -126, and -24. Four miRNAs (miR-221, miR-222, miR-126, and miR-24) were found to be deregulated in all four histological types of ovarian carcinoma (serous, mucinous, endometrioid, and clear cell). Frequent deregulation of miR-214, -199a*, -200a and -100 was demonstrated in ovarian …

Super Lewis Acidic Borate Esters As 18f-Labeled Pet Probes, Mark L. Mclaughlin, Haibin Tian

USF Patents

Compounds having a 1-bora-1-fluoro-2,6,7-trioxabicyclo[2.2.2]octane moiety wherein the fluorine is .sup.18F are described. Also described are reagents for radiolabeling a molecule having Formula I. Method for radiolabeling molecules with the disclosed reagents are also descried, as are radiolabeled molecules prepared thereby.

Kit For Detecting Salmonella Species By Assaying Outer Membrane Porin F (Ompf), Aparna Tatavarthy, Andrew C. Cannons, Loree C. Heller

USF Patents

The invention relates to a method of detecting the presence of Salmonella in a sample using novel oligonucleotide sequences. Also presented is a kit for putting the method into practice and novel nucleic acid sequences for ompF. The ompF gene was found to be 100% inclusive for Salmonella species and 100% exclusive for non-Salmonella species for the strains tested thus making it an excellent marker for identification of both the species of Salmonella: S. enterica and S. bongori. Two hundred and eighteen isolates belonging to Salmonella enterica (subspecies I-VI) and Salmonella bongori were examined using novel primers designed to detect …

Sun Belt Conference Honors 165 Eagle Student-Athletes For Work In Classroom, Georgia Southern University

Athletics: News & Publications

• Sun Belt Conference Honors 165 Eagle Student-Athletes For Work in Classroom
• Commisioner’s List, Academic Honor Roll Released

A Bayesian Framework For The Classification Of Microbial Gene Activity States, Craig Disselkoen, Brian Greco, Kaitlyn Cook, Kristin Koch, Reginald Lerebours, Chase Viss, Joshua Cape, Elizabeth Held, Yonatan Ashenafi, Karen Fischer, Allyson Acosta, Mark Cunningham, Aaron A. Best, Matthew Dejongh, Nathan Tintle

Statistical and Data Sciences: Faculty Publications

Numerous methods for classifying gene activity states based on gene expression data have been proposed for use in downstream applications, such as incorporating transcriptomics data into metabolic models in order to improve resulting flux predictions. These methods often attempt to classify gene activity for each gene in each experimental condition as belonging to one of two states: active (the gene product is part of an active cellular mechanism) or inactive (the cellular mechanism is not active). These existing methods of classifying gene activity states suffer from multiple limitations, including enforcing unrealistic constraints on the overall proportions of active and inactive …

State V. Provencio Appellant's Brief Dckt. 44054

Not Reported

No abstract provided.