Michael Jones | Sheridan College (original) (raw)

Papers by Michael Jones

arXiv (Cornell University), 2009

The Cauchy-Schlömilch transformation states that for a function f and a, b > 0, the integral of f... more The Cauchy-Schlömilch transformation states that for a function f and a, b > 0, the integral of f (x 2) and af ((ax − bx −1) 2 over the interval [0, ∞) are the same. This elementary result is used to evaluate many nonelementary definite integrals, most of which cannot be obtained by symbolic packages. Applications to probability distributions is also given.

Carbon Management, 2019

Negative emissions technologies (NETs) and their potential role in meeting emission targets is a ... more Negative emissions technologies (NETs) and their potential role in meeting emission targets is a rapidly growing and contentious area of climate change mitigation research. The literature ranges in scope from general reviews of NETs options to research and development through applied case studies. Within this field, a gap exists in the application of this growing body of research to the unique limitations and opportunities of a specific nation. Ireland is a small developed island nation in the EU with a unique emissions profile, as 32% of the total comes from agriculture due to the high number of cattle. In this study we aim to assess the potential capacity of terrestrial NETs options for Ireland and review the nation-specific context for their deployment. Despite the proportionally high representation of biochar and carbon capture and storage in the international NETs research, in an Irish context afforestation and bioenergy crops are much more established practices and could readily be considered in possible emission pathways that use NETs. Higher capacities were found for NETs options that are currently unavailable (direct air carbon capture and storage and bioenergy with carbon capture and storage), while options available to deploy at scale (afforestation, soil carbon management and biochar) have capacities limited by saturation of soil carbon stock and have higher risk of reversibility due to impermanence. Hence, while we estimate a reasonable technical capacity for NETs in Ireland, emission reduction remains the highest priority for feasibly meeting a Parisaligned carbon quota for Ireland.

The Annals of Statistics, 1996

This paper develops a nonparametric density estimator with parametric overtones. Suppose f x θ is... more This paper develops a nonparametric density estimator with parametric overtones. Suppose f x θ is some family of densities, indexed by a vector of parameters θ. We define a local kernel-smoothed likelihood function which, for each x, can be used to estimate the best local parametric approximant to the true density. This leads to a new density estimator of the form f x θ x , thus inserting the best local parameter estimate for each new value of x. When the bandwidth used is large, this amounts to ordinary full likelihood parametric density estimation, while for moderate and small bandwidths the method is essentially nonparametric, using only local properties of data and the model. Alternative ways more general than via the local likelihood are also described. The methods can be seen as ways of nonparametrically smoothing the parameter within a parametric class. Properties of this new semiparametric estimator are investigated. Our preferred version has approximately the same variance as the ordinary kernel method but potentially a smaller bias. The new method is seen to perform better than the traditional kernel method in a broad nonparametric vicinity of the parametric model employed, while at the same time being capable of not losing much in precision to full likelihood methods when the model is correct. Other versions of the method are approximately equivalent to using particular higher order kernels in a semiparametric framework. The methodology we develop can be seen as the density estimation parallel to local likelihood and local weighted least squares theory in nonparametric regression.

The commercial release of herbicide-resistant cotton (Gossypium hirsutum L.) has dramatically cha... more The commercial release of herbicide-resistant cotton (Gossypium hirsutum L.) has dramatically changed weed management practices. Roundup Ready cotton is tolerant of glyphosate applied topically through the 4-leaf stage. Cotton with enhanced glyphosate-resistance is available with Roundup Ready Flex cotton, which is tolerant of glyphosate from emergence until harvest. Studies were conducted with Roundup Ready Flex cotton to determine the response

This paper explores the links between the sharing of tacit knowledge, the explication of tacit kn... more This paper explores the links between the sharing of tacit knowledge, the explication of tacit knowledge, and creativity, in the Australian Film Industry (AFI). Subject to harsh conditions including staff turnover, tight budgets and schedule constraints, the AFI does not formulate repositories of explicit knowledge. Instead, it relies on the sharing of tacit knowledge for its success. In this setting, the explication of tacit knowledge is studied. Two concepts arise from the qualitative data, and are explored in this paper. (1) Tacit knowledge has various levels of explicability, which can be conceptualized by an ‘Explicability Zone’. (2) There is a link between the level of explicability and potential for creativity. The paper concludes with ecommendations for further research on explicability levels and their link to creativity.

Journal of Leadership Studies, 2010

… . Version will be available very soon …, 2008

Summary. We introduce the 'sinh-arcsinh transformation' and thence, by applying it to r... more Summary. We introduce the 'sinh-arcsinh transformation' and thence, by applying it to random variables from some 'generating' distribution with no further parameters beyond location and scale (which we take for most of the paper to be the normal), a new family of 'sinh-arcsinh ...

Journal of Wildlife Diseases, 2006

Transgenic cotton (Gossypium hirsutum L.) cultivars tolerant to topical applications of glyphosat... more Transgenic cotton (Gossypium hirsutum L.) cultivars tolerant to topical applications of glyphosate herbicide are now commercially available to producers. However, little information exists with regard to the tolerance of various cotton cultivars as affected by the timing of glyphosate applications. Therefore, the response of several glyphosate-tolerant transgenic cotton cultivars to various application timings of glyphosate was investigated. Two separate studies were conducted in 1995 and one in 1996 at the Delta Research and Extension Center located near Stoneville, MS. Treatments for both studies in 1995 consisted of seven glyphosate-tolerant cultivars (Coker 312-RR, Hartz 1215RR, Hartz 1220RR, Hartz 1244RR, Hartz 1330RR, Hartz 1380RR, and Hartz 1560RR) that were either unsprayed (that is, untreated control) or sprayed topically with 1.0 kg a.e. ha glyphosate plus a non-ionic surfactant at 0.5% v v at one of three different growth stages (four-, five-, and six-leaf stage). A diffe...

This qualitative study was designed to investigate the methods of practice employed by Texas scho... more This qualitative study was designed to investigate the methods of practice employed by Texas school superintendents who have completed a doctoral program centered on scholar-practitioner leadership. The purpose of this study was to explore and describe how serving superintendents apply their prior learning and knowledge to the articulation and translation of their district's mission/vision. The study described how six serving superintendents translate theory to practice by inquiring how each participant articulates the district's mission/vision. Through the analysis of face-to-face interviews, phone conversations, emails, and informal observations recorded in a researcher's journal, four common elements of scholar-practitioner leadership practice were identified by the researcher. The four common elements of practice were: ensuring the district's vision, mission, core values, guiding statements, and strategic plan is aligned from top to bottom throughout the district; creating trust and vision alignment with the school board; leadership team relationships and modeling; and inviting community input and creating partnerships. In addition, four common themes emerged as to how scholar-practitioner leaders apply theory to practice The four emergent themes were: creating programs and practices which support student success; reimagining roles and responsibilities across the educational system; change, inquiry, and research as a part of practice; and defining readiness. iv ACKNOWLEDGEMENTS I would like to express my deep appreciation to the members of my Doctoral Committee for steering me in the right direction and sharing both their insights and critical reviews. I cannot fully express my appreciation to the professors in service to my doctoral cohort and the illumination they provided to my personal practice as an educator and to their influence toward my personal journey and development as a human being. Specifically, I would like to acknowledge Dr. Sampson for her contribution to my desire to research current topics in education. I would like to acknowledge Dr. Bailey for his guidance in my master's thesis, and in his contribution to my thought processes associated to the application of organizational structures and the reimagining of educational systems. I would like to acknowledge Dr. Tareilo for her undying passion for cultural and social equity and the effect her passion had on me personally. I want to expressly thank Dr. Jenlink for his leadership, passion for the scholarpractitioner construct, and genuine manner in which he practices the leadership dynamic he advocates. I would like to acknowledge the space Dr. Embry-Jenlink created in order to facilitate the best of all of us. Specifically, I thank Dr. Embry-Jenlink for her active participation in the construction of the scholar-practitioner model for the cohort and for me, personally. I also extend my eternal gratitude for Dr. Embry-Jenlink agreeing to v chair this study. I would like to thank the members of my cohort for their support throughout this journey of individual and collective betterment. The collegiality and depth of our collaborations and conservations with one another cannot be understated, nor fully understood by non-cohort members. I appreciate you all, and the role you played in making me who I am today. Thank you for your support, challenges, and care. Finally, I want to give my heartfelt thanks to my wife, Mary, for sticking beside me during my arduous affair with lifelong learning. She deserves the title of Doctor of Education beside her name as much as I do. I also want to express gratitude to my children, Jordan, Rebekah, and Michael Scott for their consistent support and encouragement during the course of my studies. vi

ACM SIGOPS Operating Systems Review, 1993

Many contemporary operating systems utilize a system call inter-ace between the operating system ... more Many contemporary operating systems utilize a system call inter-ace between the operating system and its clients. [ncreasing numbers of systems are providing low-level mechanisms for intercepting and handling system calls in user code. Nonetheless, they typically provide no higherlevel tools or abstractions for effectively utilizing these mechanisms. Using them has typically required reimplementation of a substantial portion of the system interface from scratch, making the use of such facilities unwieldy at best. This paper presents a toolkit that substantially increases the ease of interposing user code between clients and instances of the system interface by allowing such code to be written in terms of the high-level objects provided by this interface, rather than in terms of the intercepted system calls themselves. This toolkit helps enable new interposition agents to be written, many of which would not otherwise have been attempted. This toolkit has also been used to construct several agents including." system call tracing tools, file reference tracing tools, and customizable jdesystem views. Examples of other agents that could be built include." protected environments for running untrusted binaries, iogical devices implemented entirely in user space, transparent data compression andlor encryption agents, transactional software environments, and emulators for other operating system environments.

Annual Bulletin of Historical Literature, 1979

Sources texts, the completion of two important projects is memorable. S. E. Thome has now given u... more Sources texts, the completion of two important projects is memorable. S. E. Thome has now given us the third and fourth volumes of his translation of Bracton on the laws and customs of England (Harvard U.P. and Selden SOC., 247.75), the first two of which appeared as long ago as 1968, while M. Devine has brought to a conclusion the still older project of C. D. Ross with the publication of the third and final volume of The cartulaty of Cirerzcester Abbey, Gloucestershire (O.U.P., f 15) which includes a brief list of corrigenda for the volumes of 1964. Another publication of great value, long in the press, has been the Records of the Wardrobe arid Household 1285-1286, eds B.

American journal of health-system pharmacy : AJHP : official journal of the American Society of Health-System Pharmacists, 2015

The purposes of these guidelines are to describe essential functions and capabilities that should... more The purposes of these guidelines are to describe essential functions and capabilities that should be available to reduce alert fatigue, increase user satisfaction, and increase the effectiveness of these CDS systems; and to advocate for collaboration between health information system vendors, drug database vendors, and the end-user community on design and testing of the CDS systems as well as new algorithmic models for pharmacotherapy warnings.

Physical Review Special Topics - Accelerators and Beams, 2010

Experimental data is presented that illustrates important displacement current phenomena in the m... more Experimental data is presented that illustrates important displacement current phenomena in the magnetically insulated transmission lines (MITLs) of the refurbished Z accelerator [D. V. Rose et al., Phys. Rev. ST Accel. Beams 13, 010402 (2010)]. Specifically, we show how displacement current in the MITLs causes significant differences between the accelerator current measured at the vacuuminsulator stack (at a radial position of about 1.6 m from the Z axis of symmetry) and the accelerator current measured at the load (at a radial position of about 6 cm from the Z axis of symmetry). The importance of accounting for these differences was first emphasized by Jennings et al. [C. A. Jennings et al., IEEE Trans. Plasma Sci. 38, 529 (2010)], who calculated them using a full transmission-lineequivalent model of the four-level MITL system. However, in the data presented by Jennings et al., many of the interesting displacement current phenomena were obscured by parasitic current losses that occurred between the vacuum-insulator stack and the load (e.g., electron flow across the anode-cathode gap). By contrast, the data presented herein contain very little parasitic current loss, and thus for these low-loss experiments we are able to demonstrate that the differences between the current measured at the stack and the current measured at the load are due primarily to the displacement current that results from the shunt capacitance of the MITLs (about 8.41 nF total). Demonstrating this is important because displacement current is an energy storage mechanism, where energy is stored in the MITL electric fields and can later be used by the system. Thus, even for higher-loss experiments, the differences between the current measured at the stack and the current measured at the load are often largely due to energy storage and subsequent release, as opposed to being due solely to some combination of measurement error and current loss in the MITLs and/or double post-hole convolute. Displacement current also explains why the current measured downstream of the MITLs (i.e., the load current) often exceeds the current measured upstream of the MITLs (i.e., the stack current) at various times in the power pulse (this particular phenomenon was initially thought to be due to timing and/or calibration errors). To facilitate a better understanding of these phenomena, we also introduce and analyze a simple LC circuit model of the MITLs. This model is easily implemented as a simple drive circuit in simulation codes, which has now been done for the LASNEX code [G. B. Zimmerman and W. L. Kruer, Comments Plasma Phys. Controlled Fusion 2, 51 (1975)] at Sandia, as well as for simpler MATLABÒ-based codes at Sandia. An example of this LC model used as a drive circuit will also be presented.

Neural Networks for Signal Processing III - Proceedings of the 1993 IEEE-SP Workshop

We had previously shown that regularization principles lead to approximation schemes which are eq... more We had previously shown that regularization principles lead to approximation schemes which are equivalent to networks with one layer of hidden units, called Regularization Networks. In particular we had discussed how standard smoothness functionals lead to a subclass of regularization networks, the well-known Radial Basis Functions approximation schemes. In this paper we s h o w that regularization networks encompass a m uch broader range of approximation schemes, including many of the popular general additive m o d e l s and some of the neural networks. In particular we i n troduce new classes of smoothness functionals that lead to di erent classes of basis functions. Additive splines as well as some tensor product splines can be obtained from appropriate classes of smoothness functionals. Furthermore, the same extension that leads from Radial Basis Functions (RBF) to Hyper Basis Functions (HBF) also leads from additive m o d e l s to ridge approximation models, containing as special cases Breiman's hinge functions and some forms of Projection Pursuit Regression. We propose to use the term Generalized R egularization Networks for this broad class of approximation schemes that follow from an extension of regularization. In the probabilistic interpretation of regularization, the di erent classes of basis functions correspond to di erent classes of prior probabilities on the approximating function spaces, and therefore to di erent t ypes of smoothness assumptions. In the nal part of the paper, we s h o w the relation between activation functions of the Gaussian and sigmoidal type by considering the simple case of the kernel G(x) = jxj. In summary, di erent m ultilayer networks with one hidden layer, which w e collectively call Generalized Regularization Networks, correspond to di erent classes of priors and associated smoothness functionals in a classical regularization principle. Three broad classes are a) Radial Basis Functions that generalize into Hyper Basis Functions, b) some tensor product splines, and c) additive splines that generalize into schemes of the type of ridge approximation, hinge functions and one-hidden-layer perceptrons.

The gravitational formation of large-scale structure in an expanding universe is studied within t... more The gravitational formation of large-scale structure in an expanding universe is studied within the framework of the standard hot big bang model. We work in the scenario whereby small fluctuations in the initial density field are amplified via gravitational instability generating frothy, sheet-like structures which span scales from a few million to a few hundred million light-years. Perturbation theory is

Modern transgenic cotton (Gossypium hir- sutum L.) cultivars with herbicide resistance have rejuv... more Modern transgenic cotton (Gossypium hir- sutum L.) cultivars with herbicide resistance have rejuvenated an interest in ultra-narrow row cotton production, primarily because of the reduction of weed control problems encountered in the past with ultra-narrow row systems. While the primary goal of ultra-narrow row cotton is to reduce production costs, an agronomic and physi- ological evaluation of this cropping system

The American Journal of Gastroenterology, 2001

Morbidity from GI symptoms in diabetes is considered to be high, but no studies have quantified t... more Morbidity from GI symptoms in diabetes is considered to be high, but no studies have quantified the impact of GI symptoms in diabetes on health-related quality of life. We hypothesized that diabetics reporting increased GI symptoms would experience more impaired quality of life. Subjects from the community with diabetes (n = 892) and outpatients with diabetes (n = 209) were recruited for this study. Subjects were divided into type 1 (diabetes diagnosed at age &amp;lt;30 yr and requiring insulin) and type 2. A validated questionnaire measuring GI symptoms and diabetes status and the Short Form-36 were completed. The results were compared with Australian normal data. GI symptom groups measured were frequent abdominal pain, bowel-related abdominal pain, reflux, dyspepsia, constipation, diarrhea, and fecal incontinence. There was a clinically significant decrease in quality-of-life scores in diabetics compared with population norms across all subscales. The impact on quality of life in diabetes was predominantly observed in type 2 diabetics. The quality-of-life scores in all subscales decreased markedly with increasing numbers of distinct GI symptom groups, and this was similar in community and outpatient diabetics. For all the Short Form-36 subscales, GI symptom groups were significantly (all p &amp;lt; 0.0001) associated with poorer quality of life in diabetes, independent of age, gender, smoking, alcohol use, and type of diabetes. GI symptoms impact negatively on health-related quality of life in diabetes mellitus.

Journal of Korean medical science, 2006

We performed real-time 3D echocardiography in sixteen sheep to compare acute geometric changes in... more We performed real-time 3D echocardiography in sixteen sheep to compare acute geometric changes in the mitral annulus after left anterior descending coronary artery (LAD, n=8) ligation and those after left circumflex coronary artery (LCX, n=8) ligation. The mitral regurgitation (MR) was quantified by regurgitant volume (RV) using the proximal isovelocity surface area method. The mitral annulus was reconstructed through the hinge points of the annulus traced on 9 rotational apical planes (angle increment=20 degrees). Mitral annular area (MAA) and the ratio of antero-posterior (AP) to commissure-commissure (CC) dimension of the annulus were calculated. Non-planar angle (NPA) representing non-planarity of the annulus was measured. After LCX occlusion, there were significant increases of the MAA during both early and late systole (p<0.01) with significant MR (RV: 30+/-14 mL), while there was neither a significant increase of MAA, nor a significant MR (RV: 4+/-5 mL) after LAD occlusion...