Academic Leadership: Creating Successful (New) Leaders & Preserving Institutional Memory

Participants will consider the following topics: identifying & articulating the primary responsibilities of a leadership position; preserving important institutional mores and memories during a change in leadership; developing institutional structures and materials to support new leaders in such transitions. Participants will leave with an action plan/checklist for supporting new leaders

Viability of Non-Coplanar VMAT for Liver SBRT as Compared to Coplanar VMAT and Beam Orientation Optimized 4π IMRT.

PurposeThe 4π static non-coplanar radiotherapy delivery technique has demonstrated better normal tissue sparing and dose conformity than the clinically used volumetric modulated arc therapy (VMAT). It is unclear whether this is a fundamental limitation of VMAT delivery or the coplanar nature of its typical clinical plans. The dosimetry and the limits of normal tissue toxicity constrained dose escalation of coplanar VMAT, non-coplanar VMAT and 4π radiotherapy are quantified in this study.Methods and materialsClinical stereotactic body radiation therapy plans for 20 liver patients receiving 30-60 Gy using coplanar VMAT (cVMAT) were re-planned using 3-4 partial non-coplanar arcs (nVMAT) and 4π with 20 intensity-modulated non-coplanar fields. The conformity number (CN), homogeneity index (HI), 50% dose spillage volume (R50), normal liver volume receiving >15 Gy (VL>15), dose to organs at risk (OARs), and tumor control probability (TCP) were compared for all three treatment plans. The maximum tolerable dose (MTD) yielding a normal liver normal tissue control probability (NTCP) below 1%, 5%, and 10% was calculated with the Lyman-Kutcher-Burman model for each plan, as well as the resulting survival fractions at one, two, three, and four years.ResultsCompared to cVMAT, the nVMAT and 4π plans reduced VL>15 by an average of 5 cm3 and 80 cm3, respectively. 4π reduced the 50% dose spillage volume by ~23% compared to both VMAT plans, and either significantly decreased or maintained OAR doses. The 4π MTDs and survival fractions were significantly higher than both cVMAT and nVMAT (p<0.05) for all normal liver NTCP limits used in this study.ConclusionsThe 4π technique provides significantly better OAR sparing than both cVMAT and vMAT and enables more clinically relevant dose escalation for tumor local control. Therefore, despite the current accessibility of nVMAT, it is not a viable alternative to 4π for liver SBRT

South Shore Vessel Pumpout Evaluation & Outreach Plan, Final Report

During the course of this study, 413 boaters, seven pumpout facility operators and a number of state and municipal officials either were interviewed or completed questionnaires focused on the boat sewage pumpout facilities along the South Shore of Massachusetts. The aims of the boater survey were to:collect data on how boaters disposed of their sewage waste;learn how well informed boaters were regarding the location of sewage pumpouts;determine if boaters were able to find operational pumpout facilities when they needed them;learn what common problems had been experienced when using pumpouts;determine if there were adequate facilities to service the South Shore boating community. The operator survey aimed to:collect data on how frequently pumpouts were used;determine how each marina’s pumpout services worked;to learn what common problems operators experienced with the equipment;to learn how marina operators promoted their services. In addition to providing much needed statistical data on the number and size of boats, where they were used, the frequency at which they were used, etc., this study provided insight into what boaters and marina operators knew about the environmental impacts of vessel sewage in the coastal environment. These data, along with a web search for other outreach efforts and a literature search on environmental education and outreach, were reviewed to assess what future outreach may be needed and the shape it should take

Predictors of Comorbid Eating Disorders and Association with Other Obsessive-Compulsive Spectrum Disorders in Trichotillomania

Trichotillomania (TTM) and eating disorders (ED) share many phenomenological similarities, including ritualized compulsive behaviors. Given this, and that comorbid EDs may represent additional functional burden to hair pullers, we sought to identify factors that predict diagnosis of an ED in a TTM population. Subjects included 555 adult females (age range 18–65) with DSM-IV-TR TTM or chronic hair pullers recruited from multiple sites. 7.2% (N = 40) of our TTM subjects met criteria for an ED in their lifetime. In univariable regression analysis, obsessive-compulsive disorder (OCD), Yale-Brown Obsessive Compulsive Scale (Y-BOCS) worst-ever compulsion and total scores, certain obsessive-compulsive spectrum disorders, anxiety disorder, attention-deficit/hyperactivity disorder (ADHD), and substance disorder all met the pre-specified criteria for inclusion in the multivariable analysis. In the final multivariable model, diagnosis of OCD (OR: 5.68, 95% CI: 2.2–15.0) and diagnosis of an additional body-focused repetitive behavior disorder (BFRB) (OR: 2.69, 95% CI: 1.1–6.8) were both associated with increased risk of ED in TTM. Overall, our results provide further support of the relatedness between ED and TTM. This finding highlights the importance of assessing for comorbid OCD and additional BFRBs in those with TTM. Future research is needed to identify additional predictors of comorbid disorders and to better understand the complex relationships between BFRBs, OCD and EDs

Examining \u3cem\u3eDSM\u3c/em\u3e Criteria for Trichotillomania in A Dimensional Framework: Implications for \u3cem\u3eDSM-5\u3c/em\u3e And Diagnostic Practice

Background: Diagnosis of Trichotillomania (TTM) requires meeting several criteria that aim to embody the core pathology of the disorder. These criteria are traditionally interpreted monothetically, in that they are all equally necessary for diagnosis. Alternatively, a dimensional conceptualization of psychopathology allows for examination of the relatedness of each criterion to the TTM latent continuum. Objectives: First, to examine the ability of recently removed criteria (B and C) to identify the latent dimensions of TTM psychopathology, such that they discriminate between individuals with low and high degrees of hair pulling severity. Second, to determine the impact of removing criteria B and C on the information content of remaining diagnostic criteria. Third, to determine the psychometric properties of remaining TTM diagnostic criteria that remain largely unchanged in DSM-5; that is, whether they measure distinct or overlapping levels of TTM psychopathology. Fourth, to determine whether information content derived from diagnostic criteria aid in the prediction of disease trajectory (i.e., can relapse propensity be predicted from criteria endorsement patterns). Method: Statistics derived from Item Response Theory were used to examine diagnostic criteria endorsement in 91 adults with TTM who underwent psychotherapy. Results: The removal of two criteria in DSM-5 and psychometric validity of remaining criteria was supported. Additionally, individual trait parameters were used to predict treatment progress, uncovering predictive power where none previously existed. Conclusions: Diagnostic criteria for TTM should be examined in dimensional models, which allow for nuanced and sensitive measurement of core symptomology in treatment contexts

How the merger of two white dwarfs depends on their mass ratio: orbital stability and detonations at contact

Despite their unique astrophysical relevance, the outcome of white dwarf binary mergers has so far only been studied for a very restricted number of systems. Here we present the results of a survey with more than two hundred simulations systematically scanning the white dwarf binary parameter space. We consider white dwarf masses ranging from 0.2 to 1.2 $M_\odot$ and account for their different chemical compositions. We find excellent agreement with the orbital evolution predicted by mass transfer stability analysis. Much of our effort in this paper is dedicated to determining which binary systems are prone to a thermonuclear explosion just prior to merger or at surface contact. We find that a large fraction of He-accreting binary systems explode: all dynamically unstable systems with accretor masses below 1.1 $M_\odot$ and donor masses above $\sim$ 0.4 $M_\odot$ are found to trigger a helium detonation at surface contact. A substantial fraction of these systems could explode at earlier times via detonations induced by instabilities in the accretion stream, as we have demonstrated in our previous work. We do not find definitive evidence for an explosion prior to merger or at surface contact in any of the studied double carbon-oxygen systems. Although we cannot exclude their occurrence if some helium is present, the available parameter space for a successful detonation in a white dwarf binary of pure carbon-oxygen composition is small. We demonstrate that a wide variety of dynamically unstable systems are viable type Ia candidates. The next decade thus holds enormous promise for the study of these events, in particular with the advent of wide-field synoptic surveys allowing a detailed characterization of their explosive properties.Comment: 13 pages, 10 figures, submitted to MNRA

Determining the Best Sensing Coverage for 2-Dimensional Acoustic Target Tracking

Distributed acoustic target tracking is an important application area of wireless sensor networks. In this paper we use algebraic geometry to formally model 2-dimensional acoustic target tracking and then prove its best degree of required sensing coverage. We present the necessary conditions for three sensing coverage to accurately compute the spatio-temporal information of a target object. Simulations show that 3-coverage accurately locates a target object only in 53% of cases. Using 4-coverage, we present two different methods that yield correct answers in almost all cases and have time and memory usage complexity of Θ(1). Analytic 4-coverage tracking is our first proposed method that solves a simultaneous equation system using the sensing information of four sensor nodes. Redundant answer fusion is our second proposed method that solves at least two sets of simultaneous equations of target tracking using the sensing information of two different sets of three sensor nodes, and fusing the results using a new customized formal majority voter. We prove that 4-coverage guarantees accurate 2-dimensional acoustic target tracking under ideal conditions

Moyo Vol. X N 1

Million, Chris. Coming Around to Reality: Former Cult Member Turned Editor Uses You for His Own Therapeutic Purposes . 4. Louden, Annie. A Disciple of Mr. Dewey, and All His Dirty Little Decimals: Confession of a Book-Hoarding Monomaniac . 5. Soucy, Kate. 14 Days in Dumay: Reflections After a Trip to Haiti . 6. Frieberg, Alicia. Foreign Hostel Encounters:Ireland, Land of Ire . 8. Fisher, Dan. Open the Road Wider. Open The Road Wider. The Girft of the Reverend Jusan Fudo William Frank Parker . 10. Barrett, Laura. Requiem for An Okay Cat . Cinema Annex Formerly Home to One Heck of an Adequate Feline . 11. The Editors. Late-Night Delivery Frightens Editors into Submission . 12. 2nd Chief Angel of the Quill. A Statement from the Mystic and Calorific Band of the Wingless Angels . 13. Miller, Jeremy. Rapunzel, Rapunzel, Let Down Your Keycard! Denison man Struggles to Reach Girlfriend at Medium Security Prison... er... University . 15. Mallinger, Adam. Cult-Invated Taste: Pop Cult Vs. Pop Culture . 16.; Million, Chris. A Day in the Lights. A Ballet Boy\u27s Continued Search for masculinity . 18. Newitt, Heidi. Show Us Your Tits! A Feminist Glimpse Into the Overt Misogyny in Popular Culture Today . 20. Woods, Lindsay. Stuck in the Doledrums. Attempted Seduction of U.S. Senator Strikes Out . 22. Hankinson, Tom. Wingless Angels Just a Bunch of Dorks: Denison\u27s Secret Society-Watch Out, They Might Hit You With a Pocket Protector . 20. Silverstein, Illana. First Contact: Improvisational Dance on Campus . 32. Dunson, Jim. Philosophy of Pecan Pie: The Culmination of a Grand Tradition of Cu-lino-Epistemological Thought . Kovach, Steve. Empirical Test Goes Horribly Awry: Frozen Yogurt Proves Less Philosophically Fruitful than Pie . 34

Case Studies and Annotated Bibliography of Truck Accident Countermeasures on Urban Freeways

DTFH61-90-C-00029To address the growing problem of congestion caused by incidents, especially truck-involved incidents, this study was undertaken to identify truck accident countermeasures which have been used nationwide. Desired conditions surrounding implemented countermeasures in this study included urban freeway volumes of 95,000 vehicles per day or higher, a significant number of trucks in the traffic stream (typically 5% or more), and countermeasures involving road design. The study omitted countermeasures directly related to the vehicle and the driver. This project included the following steps: literature search, telephone survey, and field visits to selected sites. The information collected by this project is intended to assist agencies in identifying, selecting, and implementing truck accident countermeasures. Information was gathered on the following truck accident countermeasures: lane restrictions, separate truck roadways, urban inspection stations, ramp treatments, major incident response and clearance, and truck bans/diversion and time restrictions. The detailed information found in this document is summarized in the final report, FHWA-RD-92-059 (TRIS 662764)