106 research outputs found
Anthony Sabatino
No full textDr. Sabatino joined the full time faculty of LMU’s School of Education in the Department of Educational Leadership in June 2010 with a focus on leadership preparation for future Catholic school administrators. His teaching and research interests include leadership theory and applications related to the Catholic school principalship, Catholic school governance, leadership succession, mission-driven leadership, spiritual leadership, and instructional improvement innovations stemming from vibrant mission-driven Catholic school leaders.
Dr. Sabatino’s publications are focused on leadership succession, building school board capacity, and transitioning from public to Catholic school leadership. In addition, he has designed formative assessment frameworks and rubrics for Catholic school leadership preparation and governance development. Dr. Sabatino is the author, administrator, and professor of the LMU Certificate in Catholic School Administration program. This leadership preparation program has served Catholic educators in Archdiocese of LA, the Diocese of Orange, and the Diocese of San Bernardino. In addition, a national virtual online cohort comprised of students from five mission dioceses in the United States is completing its second semester of the program.
Before entering higher education, Dr. Sabatino had a 36-year career serving in both public and Catholic schools. He was a Catholic school administrator for 27 years in two elementary and two secondary schools. Dr. Sabatino spent 19 of those 27 years serving the educational mission of the western province of the Order of St. Augustine (OSA), finishing his P-12 career as Headmaster of Villanova Preparatory School in Ojai, California.https://ecommons.udayton.edu/catholiced_presenters/1010/thumbnail.jp
Extra-special quotients of surface braid groups and double Kodaira fibrations with small signature
No full textWe study some special systems of generators on finite groups, introduced in
previous work by the first author and called "diagonal double Kodaira
structures", in order to investigate non-abelian, finite quotients of the pure
braid group on two strands , where is a
closed Riemann surface of genus . In particular, we prove that, if a finite
group admits a diagonal double Kodaira structure, then , and
equality holds if and only if is extra-special. In the last section, as a
geometrical application of our algebraic results, we construct two
-dimensional families of double Kodaira fibrations having signature .
Such surfaces are different from the ones recently constructed by Lee, L\"onne
and Rollenske and, as far as we know, they provide the first examples of
positive-dimensional families of double Kodaira fibrations with small
signature.Comment: 28 pages, 2 figures. Title changed. Final version, to appear in
Geometriae Dedicat
ASO Author Reflections: Prognostication in Early- and Advanced-Stage Small Bowel Adenocarcinomas
No full textX-ray Computed Tomography for Capillary Collapse of Loose Unsaturated Sand
No full textAbstractThe collapse of unsaturated soils consists of the reduction in volume upon wetting at constant total stress. Several studies at the macro scale outline the influence of initial void ratio, confining pressure and matric suction on the onset of collapse of standard laboratory specimens. Conversely, few observations at the micro scale are available in the literature, although the influence of the particles arrangement and intergranular bonding has been formerly supposed. The collapse of fine sand derived by a pyroclastic soil of Southern Italy is investigated in this paper at the microscale using the X-ray Computed Tomography. The experimental procedure, formerly tested on similar pyroclastic soils, consists into testing a remoulded specimen (only loaded by its self-weight), which undergoes a reduction of matric suction until the collapse occurs. The laboratory investigation aims to: i) follow the transformation of the particles arrangement; ii) measure the global variations of the specimen in terms of water content, porosity and saturation degree during the wetting stage; iii) measure the local porosity, water content and saturation degree in several representative sub-volumes of the specimen. The experimental evidence outlines that the collapse occurs at very low suction while it is not mandatory to reach the complete saturation, emphasized by the presence of macro-voids at collapse
2012-2013: Distinguished Visiting Author, Margot Livesy
No full textStudent Fellows: Rebecca Abitz, Mackenzie Brennan, Leah Catania, Reina Laaman, Nicole Sabatino, Chelsea Silvahttps://docs.rwu.edu/bermont-fellowship/1002/thumbnail.jp
2012-2013: Distinguished Visiting Author, Margot Livesy
No full textStudent Fellows: Rebecca Abitz, Mackenzie Brennan, Leah Catania, Reina Laaman, Nicole Sabatino, Chelsea Silvahttps://docs.rwu.edu/bermont-fellowship/1002/thumbnail.jp
MPM hydro-mechanical modelling of flows impacting rigid walls
No full textThe study on impact mechanisms of flow-like landslides against structures is still an open issue in the scientific literature. Many researchers have employed so far either experiments or numerical methods, but the evaluation of the impact forces on mitigation obstacles remains difficult especially if the solid-fluid interaction within the flow is considered. This study shows how advanced numerical tools, such as Material Point Method, may be used in simulating those complex processes. The simulations are carried out for two well documented laboratory tests: a dry granular flow impacting a rigid wall under different geometries and testing conditions in a small-scaled flume and a saturated flow with complex propagation pattern in a centrifuge apparatus. The numerical modelling is validated against the observations and then used to explore the response of different flows impacting rigid structures in other conditions than in the experiments. The soil-fluid interaction influences the type of impact mechanism, the kinematics of the flow, and the space-time trend of the impact pressure against the structure.The presentation of the authors' names and (or) special characters in the title of the pdf file of the accepted manuscript may differ slightly from what is displayed on the item page. The information in the pdf file of the accepted manuscript reflects the original submission by the author
Hydrachna papilligera K. Viets 1919
No full textHydrachna papilligera K. Viets, 1919 Species incerta Material examined: Holotype deutonymph SMF 941, Germany, Braunschweig, Teich bei Weddel, 8.7. 1910 Kühne. Discussion: This species was described from a single deutonymph. Later, the author himself proposed its synonymy to H. skorikowi (see K. Viets 1936). In view of the difficulties of associating nymphs to conspecific adults, it must be considered a species incerta.Published as part of Davids, Kees, Sabatino, Antonio Di, Gerecke, Reinhard, Gledhill, Terence & Smit, Harry, 2005, On the taxonomy of water mites (Acari: Hydrachnidia) described from the Palaearctic, part 1: Hydrachnidae, Limnocharidae and Eylaidae, pp. 36-64 in Zootaxa 1061 on page 48, DOI: 10.5281/zenodo.17018
Role of macrophage metalloelastase in gut inflammation. [Issue: Inflammatory Bowel Disease: Genetics, Barrier Function, Immunologic Mechanisms and Microbial]
No full textMatrix metalloproteinases (MMPs) are involved in a number of physiological and pathologic processes including the inflammation found in IBD. We have shown that MMP-3 is upregulated in Crohn's disease and in ulcerative colitis. This study shows a potential role for MMP-12 in these idiopathic diseases
A new tool for wide-area analysis of transient pore water pressures in layered shallow covers prone to failure
No full textIn this paper we present a modified version of an existing, physically-based model for shallow landslide susceptibility analysis over large area. In general, the potentially unstable soil cover is considered uniform and homogeneous, over impervious underlying bedrock. In several case studies, this was proven to be unrealistic. The possibility of taking into account the detailed configuration of the soil cover allows having a more accurate estimate of the potentially unstable volumes, which determine the intensity of the considered phenomena. The newly–implemented tool was tested by comparing its results with those obtained from a Finite Element (FE) commercial code, solving the same 1D problem. Then, a parametric analysis was carried out by varying the permeability ratio between the two layers, with the aim of examining the influence of such parameter on the pore-pressure distribution along the vertical profile. As expected, as the permeability ratio increases, the underlying layer tends to behave as an impervious boundary. This increases the chance that only the most superficial soil layer fails. An analysis of the routine performance and efficiency was also done to investigate the response of the model with various tolerances and different spatial discretizations along the vertical profile. As main result, it is shown that the variability in ground conditions may highly affect the pore water pressures and the proposed seepage model can be successfully whether detailed stratigraphy site investigations are available
- …
