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Academic literature on the topic 'Least Pth'

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Published: 4 June 2021
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Journal articles on the topic "Least Pth"

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Gokhale, M. Y., and Daljeet Kaur Khanduja. "Analysis and synthesis of speech using least Pth norm filter design." International Journal of Speech Technology 11, no. 1 (March 2008): 51–61. http://dx.doi.org/10.1007/s10772-009-9035-7.

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Phillips, IJ, TR Kurzawinski, and JW Honour. "Potential pitfalls in intraoperative parathyroid hormone measurements during parathyroid surgery." Annals of Clinical Biochemistry: International Journal of Laboratory Medicine 42, no. 6 (November 1, 2005): 453–58. http://dx.doi.org/10.1258/000456305774538283.

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Background: The outcome of parathyroid surgery is often not clear for at least 24 h after the operation. A frozen section does not always distinguish between an adenoma and hyperplasia. Minimally invasive surgical techniques are being refined, so the need for perioperative assurance about the completeness of surgery has increased. The value of intraoperative parathyroid hormone (PTH) measurements in 26 surgical cases undergoing parathyroidectomy has been evaluated. Methods: Twenty-one patients were diagnosed as having primary hyperparathyroidism, including two patients with multiple endocrine neoplasia type I (MEN I). Five patients had tertiary hyperparathyroidism, including one patient with X-linked hypophosphataemia and four with renal hyperparathyroidism (RHPT). Blood samples were taken at the onset of surgery, at the time of tumour resection and at 5-min intervals following removal of the tumour. PTH was measured using a PTH Turbo assay on the DPC Immulite analyser. Results: Current practice suggests that the PTH concentration should fall to less than 50% of the pre-incision value or to less than 50% of the level at the time of tumour resection (time equals zero). PTH levels were therefore monitored at 5-min intervals following removal of the tumour. In most of the case studies PTH followed the suggested pattern, but not when further exploration was warranted to determine if another adenoma was present. In some cases the PTH levels fell by the appropriate margin to deem the procedure a success but at 10 min post-gland excision the PTH began to rise again. Further exploration was required to confirm the continued source of PTH. Conclusion: We recommend that intraoperative PTH measurements continue until at least 15 min post-gland removal in cases of suspected single-gland disease. A decline in PTH concentration to at least 50% of the pre-incision or time of gland resection levels should be observed. If the PTH remains elevated or rises again after an appropriate decrease in levels, then multigland disease or ectopic sources should be considered. Caution is recommended in interpreting intraoperative PTH measurements to ensure complete success of the surgical procedure.
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Chien-Cheng Tseng. "Design of IIR digital all-pass filters using least pth phase error criterion." IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing 50, no. 9 (September 2003): 653–56. http://dx.doi.org/10.1109/tcsii.2003.816914.

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Murer, H., A. Werner, S. Reshkin, F. Wuarin, and J. Biber. "Cellular mechanisms in proximal tubular reabsorption of inorganic phosphate." American Journal of Physiology-Cell Physiology 260, no. 5 (May 1, 1991): C885—C899. http://dx.doi.org/10.1152/ajpcell.1991.260.5.c885.

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Filtered inorganic phosphate (Pi) is largely reabsorbed in the proximal tubule. Na-Pi cotransport, with a stoichiometry of at least 2:1, mediates uphill transport at the apical membrane; at the basolateral membrane different types of transport systems can be involved in efflux and uptake of Pi from the interstitium. Regulation of transcellular Pi flux involves alteration of the apical Na-Pi cotransport; at least three different cellular control/sensing systems seem to participate in this regulation and are exemplified by parathyroid hormone (PTH)-dependent inhibition, Pi deprivation-dependent increase, and insulin-like growth factor I (IGF-I)-dependent increase in Na-Pi cotransport. For PTH inhibition, recent evidence suggests a role of the phospholipase C/protein kinase C-dependent regulatory cascade in inhibition of Na-Pi cotransport, at least at low PTH concentrations. In addition, an endocytic mechanism seems to be involved in this PTH action. Little is known of the cellular mechanisms in Pi deprivation-dependent and/or IGF-I-dependent increases in Na-Pi cotransport; they are dependent on de novo protein synthesis. Recent experiments involving an expression in Xenopus laevis oocytes led to the identification of an approximately 50 kDa membrane protein that is a good candidate for being involved in brush-border membrane Na-Pi cotransport activity.
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Takano, T., M. Takigawa, E. Shirai, K. Nakagawa, M. Sakuda, and F. Suzuki. "The Effect of Parathyroid Hormone (1-34) on Cyclic AMP Level, Ornithine Decarboxylase Activity, and Glycosaminoglycan Synthesis of Chondrocytes from Mandibular Condylar Cartilage, Nasal Septal Cartilage, and Spheno-occipital Synchondrosis in Culture." Journal of Dental Research 66, no. 1 (January 1987): 84–87. http://dx.doi.org/10.1177/00220345870660011801.

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Previously, we reported methods for isolating chondrocytes from the craniofacial complex and their culture in vitro. The response of these chondrocyte cultures to bovine parathyroid hormone (1—34) (PTH) has now been investigated. PTH stimulated glycosaminoglycan (GAG) synthesis, a characteristic of the cartilage phenotype in cultured chondrocytes isolated from mandibular condylar cartilage (MCC), nasal septal cartilage (NSC), and spheno-occipital synchondrosis (SOS). These stimulations of GAG synthesis by PTH were dose-dependent. PTH also increased accumulation of cyclic AMP (cAMP) and the activity of ornithine decarboxylase (ODC), a rate-limiting enzyme in polyamine biosynthesis. However, PTH did not stimulate DNA synthesis. The increases in the cAMP level, ODC activity, and GAG synthesis after addition of PTH (10-7 mol/L) were greatest in MCCchondrocytes and least in NSC-chondrocytes. The difference in the responses to PTH of these three types of chondrocytes may reflect differences of the characteristics of these cells in vivo.
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Ingle, A. R., J. E. Bailey, H. L. Matthews, and J. S. Harrop. "Performance and Clinical Utility of a Commercially Available ‘C-terminal’ PTH Assay." Annals of Clinical Biochemistry: International Journal of Laboratory Medicine 23, no. 4 (July 1986): 434–39. http://dx.doi.org/10.1177/000456328602300409.

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The performance and clinical utility of a ‘C-terminal’ parathyroid hormone (PTH) radioimmunoassay (Dac-Cel, Wellcome Diagnostics) is described. Parathyroid hormone, as measured by the Dac-Cel method, is stable in whole blood samples for at least 24 h. 84% of patients with hypercalcaemia due to primary hyperparathyroidism have values above the upper limit seen in normocalcaemic subjects (0·5 μg/L), with detectable serum PTH demonstrable in the remaining 16%. In patients with hypocalcaemia due to hypoparathyroidism serum PTH was undetectable in 73% and ‘inappropriately’ low in the remainder. In 50% of patients with malignancy-associated hypercalcaemia serum PTH was undetectable, but was above 0·5 μg/L in 13%. Increased PTH concentrations were invariably found in patients with renal failure. The Dac-Cel method is a reliable and robust technique for measurement of PTH and in conjunction with determination of calcium facilitates the diagnosis of primary parathyroid disorders. Caution is required in the interpretation of PTH measurements in patients with renal failure; the significance of detectable PTH in some patients with malignancy-associated hypercalcaemia is not clear.
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Levy, Dan, Shahaf Edut, Renana Baraz-Goldstein, Vardit Rubovitch, Ruth Defrin, Dara Bree, Helaine Gariepy, Jun Zhao, and Chaim G. Pick. "Responses of dural mast cells in concussive and blast models of mild traumatic brain injury in mice: Potential implications for post-traumatic headache." Cephalalgia 36, no. 10 (July 20, 2016): 915–23. http://dx.doi.org/10.1177/0333102415617412.

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Background Chronic post-traumatic headache (PTH) is one of the most common symptoms of mild traumatic brain injury (mTBI) but its underlying mechanisms remain unknown. Inflammatory degranulation of dural mast cells (MCs) is thought to promote headache, and may play a role in PTH. Whether mTBI is associated with persistent degranulation of dural MCs is yet to be determined. Methods Histochemistry was used to evaluate time course changes in dural MC density and degranulation level in concussive head trauma and blast mouse models of mTBI. The effects of sumatriptan and the MC stabilizer cromolyn sodium on concussion-evoked dural MC degranulation were also investigated. Results Concussive head injury evoked persistent MC degranulation for at least 30 days. Blast trauma gave rise to a delayed MC degranulation response commencing at seven days that also persisted for at least 30 days. Neither sumatriptan nor cromolyn treatment reduced concussion-evoked persistent MC degranulation. Conclusions mTBI evoked by closed head injury or blast exposure is associated with persistent dural MC degranulation. Such a response in mTBI patients may contribute to PTH. Amelioration of PTH by sumatriptan may not involve inhibition of dural MC degranulation. If persistent dural MC degranulation contributes to PTH, then cromolyn treatment may not be effective.
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Akatsu, Takuhiko, Naokazu Nagata, Nobuo Kugai, Yoshirou Yasutomo, Tokuyasu Kinoshita, Hiroshi Kosano, Osamu Takatani, Kunio Takishima, and Gunzi Mamiya. "On the activities of parathyroid hormone-like factor and transforming growth factors in extract of pancreatic cancer associated with humoral hypercalcemia of malignancy." Acta Endocrinologica 118, no. 2 (June 1988): 232–38. http://dx.doi.org/10.1530/acta.0.1180232.

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Abstract. Extract of exocrine pancreatic cancer associated with humoral hypercalcemia of malignancy was examined for biological activities of PTH-like factor and transforming growth factor (TGFA and TGFB), both of which are possible causes of hypercalcemia. The crude extract had both PTH-like and TGF activities. On Bio Gel P-60 column chromatography, PTH-like and TGFA activities were eluted at around 10 kD, whereas TGFB activity was eluted at around void fractions, 10 kD and 6 kD. Liver extract, used as a control material, exhibited only TGFB activity at around 6 kD. CM-cellulose column chromatography of 10 kD fractions resulted in a subtle distinction between PTH-like activity and TGF activities. Further fractionation of the peak with PTH-like activity on reverse-phase high performance liquid chromatography separated PTH-like activity distinctly from TGFB activity. TGFA activity was lost through the procedure. It was concluded that the exocrine pancreatic cancer associated with hypercalcemia produced not only PTH-like activity but also TGFA and TGFB activities. Several chromatographic analyses suggested that PTH-like activity and at least TGFB activity stem from distinct molecules and that the PTH-like factor has no significant TGFB activity intrinsically.
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Chobanian, M. C., and M. R. Hammerman. "Parathyroid hormone stimulates ammoniagenesis in canine renal proximal tubular segments." American Journal of Physiology-Renal Physiology 255, no. 5 (November 1, 1988): F847—F852. http://dx.doi.org/10.1152/ajprenal.1988.255.5.f847.

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To determine whether parathyroid hormone (PTH) affects ammoniagenesis in renal proximal tubule, we measured ammonia production in suspensions of canine renal proximal tubular segments incubated with 10 mM L-glutamine in the absence or presence of 10(-7) M PTH. Productions of ammonia were linear functions of time for 120 min and averaged 231 +/- 55 and 311 +/- 67 mumol ammonia/g protein in the absence and presence of PTH, respectively. When measured over the range of 10(-11)-10(-7) M PTH, half-maximal stimulation of ammonia production occurred between 10(-10) and 10(-9) M PTH. Maximal production of ammonia was observed at 10(-8) M PTH. Incubation of proximal tubular segments with PTH increased levels of adenosine 3',5'-cyclic monophosphate (cAMP) in vitro. Ammonia production was significantly enhanced by incubation of segments with the cAMP analogue, 8-bromoadenosine 3',5'-cyclic monophosphate. PTH also increased ammonia production in segments incubated with 1 mM L-glutamine. We conclude that PTH stimulates ammonia production in canine renal proximal tubular segments. This effect appears to be mediated, at least in part, through cAMP in vitro. Such stimulation could reflect a direct action of PTH on the proximal tubule to enhance ammoniagenesis in vivo.
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Bastepe, Murat, Serap Turan, and Qing He. "Heterotrimeric G proteins in the control of parathyroid hormone actions." Journal of Molecular Endocrinology 58, no. 4 (May 2017): R203—R224. http://dx.doi.org/10.1530/jme-16-0221.

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Parathyroid hormone (PTH) is a key regulator of skeletal physiology and calcium and phosphate homeostasis. It acts on bone and kidney to stimulate bone turnover, increase the circulating levels of 1,25 dihydroxyvitamin D and calcium and inhibit the reabsorption of phosphate from the glomerular filtrate. Dysregulated PTH actions contribute to or are the cause of several endocrine disorders. This calciotropic hormone exerts its actions via binding to the PTH/PTH-related peptide receptor (PTH1R), which couples to multiple heterotrimeric G proteins, including Gs and Gq/11. Genetic mutations affecting the activity or expression of the alpha-subunit of Gs, encoded by the GNAS complex locus, are responsible for several human diseases for which the clinical findings result, at least partly, from aberrant PTH signaling. Here, we review the bone and renal actions of PTH with respect to the different signaling pathways downstream of these G proteins, as well as the disorders caused by GNAS mutations.
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Dissertations / Theses on the topic "Least Pth"

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Jacmenovic, Dennis, and dennis_jacman@yahoo com au. "Optimisation of Active Microstrip Patch Antennas." RMIT University. Electrical and Computer Engineering, 2004. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20060307.144507.

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This thesis presents a study of impedance optimisation of active microstrip patch antennas to multiple frequency points. A single layered aperture coupled microstrip patch antenna has been optimised to match the source reflection coefficient of a transistor in designing an active antenna. The active aperture coupled microstrip patch antenna was optimised to satisfy Global Positioning System (GPS) frequency specifications. A rudimentary aperture coupled microstrip patch antenna consists of a rectangular antenna element etched on the top surface of two dielectric substrates. The substrates are separated by a ground plane and a microstrip feed is etched on the bottom surface. A rectangular aperture in the ground plane provides coupling between the feed and the antenna element. This type of antenna, which conveniently isolates any circuit at the feed from the antenna element, is suitable for integrated circuit design and is simple to fabricate. An active antenna design directly couples an antenna to an active device, therefore saving real estate and power. This thesis focuses on designing an aperture coupled patch antenna directly coupled to a low noise amplifier as part of the front end of a GPS receiver. In this work an in-house software package, dubbed ACP by its creator Dr Rod Waterhouse, for calculating aperture coupled microstrip patch antenna performance parameters was linked to HP-EEsof, a microwave computer aided design and simulation package by Hewlett-Packard. An ANSI C module in HP-EEsof was written to bind the two packages. This process affords the client the benefit of powerful analysis tools offered in HP-EEsof and the fast analysis of ACP for seamless system design. Moreover, the optimisation algorithms in HP-EEsof were employed to investigate which algorithms are best suited for optimising patch antennas. The active antenna design presented in this study evades an input matching network, which is accomplished by designing the antenna to represent the desired source termination of a transistor. It has been demonstrated that a dual-band microstrip patch antenna can be successfully designed to match the source reflection coefficient, avoiding the need to insert a matching network. Maximum power transfer in electrical circuits is accomplished by matching the impedance between entities, which is generally acheived with the use of a matching network. Passive matching networks employed in amplifier design generally consist of discrete components up to the low GHz frequency range or distributed elements at greater frequencies. The source termination for a low noise amplifier will greatly influence its noise, gain and linearity which is controlled by designing a suitable input matching network. Ten diverse search methods offered in HP-EEsof were used to optimise an active aperture coupled microstrip patch antenna. This study has shown that the algorithms based on the randomised search techniques and the Genetic algorithm provide the most robust performance. The optimisation results were used to design an active dual-band antenna.
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Garcia, Ivan. "Solving the weighted region least cost path problem using transputers." Thesis, Monterey, California. Naval Postgraduate School, 1989. http://hdl.handle.net/10945/27274.

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Lin, Tongling. "Path probability and an extension of least action principle to random motion." Phd thesis, Université du Maine, 2013. http://tel.archives-ouvertes.fr/tel-00795600.

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The present thesis is devoted to the study of path probability of random motion on the basis of an extension of Hamiltonian/Lagrangian mechanics to stochastic dynamics. The path probability is first investigated by numerical simulation for Gaussian stochastic motion of non dissipative systems. This ideal dynamical model implies that, apart from the Gaussian random forces, the system is only subject to conservative forces. This model can be applied to underdamped real random motion in the presence of friction force when the dissipated energy is negligible with respect to the variation of the potential energy. We find that the path probability decreases exponentially with increasing action, i.e., P(A) ~ eˉγA, where γ is a constant characterizing the sensitivity of the action dependence of the path probability, the action is given by A = ∫T0 Ldt, a time integral of the Lagrangian L = K-V over a fixed time period T, K is the kinetic energy and V is the potential energy. This result is a confirmation of the existence of a classical analogue of the Feynman factor eiA/ħ for the path integral formalism of quantum mechanics of Hamiltonian systems. The above result is then extended to real random motion with dissipation. For this purpose, the least action principle has to be generalized to damped motion of mechanical systems with a unique well defined Lagrangian function which must have the usual simple connection to Hamiltonian. This has been done with the help of the following Lagrangian L = K - V - Ed, where Ed is the dissipated energy. By variational calculus and numerical simulation, we proved that the action A = ∫T0 Ldt is stationary for the optimal paths determined by Newtonian equation. More precisely, the stationarity is a minimum for underdamped motion, a maximum for overdamped motion and an inflexion for the intermediate case. On this basis, we studied the path probability of Gaussian stochastic motion of dissipative systems. It is found that the path probability still depends exponentially on Lagrangian action for the underdamped motion, but depends exponentially on kinetic action A = ∫T0 Kdt for the overdamped motion.
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Martínez, Ruiz Alba. "Patent value models: partial least squares path modelling with mode C and few indicators." Doctoral thesis, Universitat Politècnica de Catalunya, 2011. http://hdl.handle.net/10803/116489.

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Two general goals were raised in this thesis: First, to establish a PLS model for patent value and to investigate causality relationships among variables that determine the patent value; second, to investigate the performance of Partial Least Squares (PLS) Path Modelling with Mode C inthe context of patent value models. This thesis is organized in 10 chapters. Chapter 1 presents an introduction to the thesis that includes the objectives, research scope and the document’s structure. Chapter 2 gives an overview of the different approaches for patent value from the perspective of technological change. Definitions related to patent documents and patent indicators are provided. Chaper 3 reports on patent sample descriptions. We present criteria to retrieve data, the procedure for calculating patent indicators, and a statistical data description. Chapter 4 provides an introduction to structural equation models (SEMs) including origins, basic background and recent developments. In addition, it provides guidelines for model specification and modelling process for SEMs. Special emphasis is placed on determining the reflective or formative nature of measurement models. Chapter 5 puts forward the main PLS algorithms: NIPALS, PLS Regression and PLS Path Modelling. We present two path modelling implementations: Lohmöller and Wold’s procedures. Additionally, insights are given on procedure sensitivity to starting weight values and weighting schemes; algorithm properties, such as consistency and consistency at large; and convergence. We briefly review some PLS Path Modelling extensions and relationships with other procedures. The chapter ends by describing validation techniques. Chapter 6 provides evidence about the accuracy and precision of PLS Path Modelling with Mode C to recover true values in SEMs with few indicators per construct. Monte Carlo simulations and computational experiments are carried out to study the performance of the algorithm. Chapter 7 addresses the formulation and estimation of patent value models. This entails the identification and definition of observable and unobservable variables, the determination of blocks of manifest variables and structural relationships, the specification of a first- and a second-order models of patent value, and the models’ estimation by PLS Path Modelling. In Chapter 8, the evolution of patent value over time using longitudinal SEMs is investigated. Two set-ups are explored. The first longitudinal model includes time-dependent manifest variables and the second includes time-dependent unobservable variables. The SEMs are estimated using PLS Path Modelling. In Chapter 9, there is a description of a Two-Step PLS Path Modelling with Mode C (TsPLS) procedure to study nonlinear and interaction effects among formative constructs. Monte Carlo simulations are performed to generate data and to determine the accuracy and precision of this approach to recover true values. This chapter includes an application of the TsPLS algorithm to patent value models. Finally, in Chapter 10, we provide a summary of conclusions and future researchs. The main contribution of this thesis is to set-up a PLS model for patent value, and around this issue, we have also contributed in two main areas: Contributions to the field of Technological Change are comprised of: (1) Evidence on the role of the knowledge stock, technological scope and international scope as determinants of patent value and technological usefulness. A stable pattern of path coefficients was found across samples in different time periods. (2) To conceptualize the patent value as a potential and a recognized value for intangible assets. It was also shown that the potential value of patent is small compared to the value that is given later. (3) Evidence for the importance of considering the longitudinal nature of the indicators in the patent value problem, especially for forward citations, which are the most widely used indicator of patent value. (4) To introduce a multidimensional perspective of the patent valuation problem. This novel approach may offer a robust understanding of the different varia bles that determine patent value. Contributions to the field of PLS Path Modelling are comprised of: (5) Empirical evidence on the performance of PLS Path Modelling with Mode C. If properly implemented, the procedure can adequately capture some of the complex dynamic relationships involved in models. Our research shows that PLS Path Modelling with Mode C performs according to the theoretical framework established for PLS procedures and PLS-models (Wold, 1982; Krämer, 2006; Hanafi, 2007; Dijkstra, 2010). (6) Empirical evidence for the consistency at large of the PLS Path Modelling with Mode A. (7) Empirical evidence for formative outer models with few manifest variables. (8) Empirical evidence on the performance of a Two-Step PLS Path Modelling with Mode C procedure to estimate nonlinear and interaction effects among formative constructs.
Dos objetivos general fueron planteados en esta tesis. Primero, establacer un modelo PLS para el valor de las patentes e investigar las relaciones de causalidad entre las variables que determinan el valor de las patentes. Segundo, investigar el desempeño del procedimiento Partial Least Squares (PLS) Path Modelling con Modo C en el contexto de los modelos de valor de las patentes. La tesis es organizada en 10 capítulos. El Capítulo 1 presenta una introducción a la tesis que incluye los objetivos, el alcance de la investigación y la estructura del documento. El Capítulo 2 entrega una presentación general de los diferentes enfoques para valoración de patentes desde una perspectiva del cambio tecnológico. También se entregan las definiciones necesarias relacionadas con los documentos e indicadores de patentes. El Capítulo 3 describe la muestra de patentes usada en esta investigación. Se presentan los criterios utilizados para recuperar los datos, el procedimiento seguido para calcular los indicadores de patentes y la descripción estadística de la muestra. El Capítulo 4 provee una introducción a los modelos de ecuaciones estructurales (SEMs) incluyendo orígenes, antecedentes básicos y desarrollos recientes. Además se entregan los lineamientos para la especificación de los modelos y el proceso de modelamiento para SEMs. Este capítulo discute con especial énfasis la determinación de la naturaleza reflectiva o formativa de los modelos de medida. El Capítulo 5 presenta los principales algoritmos PLS: NIPALS, Regresión PLS y PLS Path Modelling. Se presentan dos implementaciones de PLS Path Modelling: los procedimientos de Lohmöller y Wold. Adicionalmente, se analyzan resultados previos relacionados con: la sensibilidad del procedimiento al valor inicial de los vectores de pesos y el esquema de ponderación, y las propiedades del algoritmo, tales como consistencia, consistencia “at large” y convergencia. También brevemente se revisan algunas extensiones del procedimiento y su relación con otros métodos. El capítulo termina describiendo las técnicas de validación. El Capítulo 6 provee evidencia acerca de la exactitud y precisión con que PLS Path Modelling con Modo C recupera valores verdaderos en SEMs con pocos indicadores por constructo. Simulaciones Monte Carlo y experimentos computacionales son llevados a cabo para estudiar el rendimiento del algoritmo. El Capítulo 7 trata la formulación y estimación de los modelos de valoración de patentes. Esto comprende la identificación y definición de las variables observables y no observables, la determinación de los bloques de variables manifiestas y las relaciones estructurales, la especificación de los modelos de primer y segundo orden del valor de las patentes y la estimación de los mismos con PLS Path Modelling. En el Capítulo 8, la evolución del valor de las patentes a través del tiempo es investigado usando SEMs longitudinales. Dos set-ups son explorados. El primer modelo longitudinal considera variables manifiestas dependientes del tiempo y el segundo incluye variables latentes dependientes del tiempo. Los SEMs son estimados usando PLS Path Modelling. En el Capítulo 9, el procedimiento Two-Step PLS Path Modelling con Modo C (TsPLS) es implementado para estudiar los efectos no lineales y de interacción entre constructos formativos. Simulaciones Monte Carlo son llevadas a cabo para generar datos y determinar la exactitud y precisión con que este enfoque recupera valores verdaderos. Este capítulo incluye una aplicación del procedimiento a los modelos de patentes. Finalmente, el Capítulo 10 provee un resumen de las conclusiones y lineamientos para futuras investigaciones. La principal contribución de esta tesis es proponer modelos PLS para el valor de las patentes, y alrededor de este objetivo, nosotros hemos también contribuido en dos áreas principales: Contribuciones en el área del Cambio Tecnológico comprenden: (1) Evidencia empírica del rol del stock de conocimiento, el alcance tecnológico y el alcance internacional como determinantes del valor de las patentes y la utilidad tecnológica. Un patrón estable de coeficientes de trayectoria fue encontrado al estimar los modelos con muestras en diferentes periodos de tiempo. (2) Conceptualizar el valor de las patentes en un valor potencial y uno reconocido. También proveer evidencia acerca de que el valor potencial es pequeño al compararlo con el valor que las patentes adquieren con posterioridad. (3) Evidencia acerca de la importancia de considerar la naturaleza longitudinal de los indicatores en el problema de valorización de patentes, especialmente de las citas recibidas, el indicador de valor más utilizado. (4) Introducir una perspectiva multidimensional en el problema de valoración de patentes. Este nuevo enfoque puede ofrecer un entendimiento robusto de las diferentes variables que determinar el valor de las patentes. Contribuciones en el área del PLS PLS Path Modelling comprenden: (5) Evidencia empírica acerca del desempeño de PLS Path Modelling con Modo C. Apropiadamente implemetado, el procedimiento puede adecuadamente capturar algunas de las complejas relaciones dinámicas en los modelos. Nuestra investigación muestra que PLS Path Modelling con Modo C se comporta de acuerdo al marco teórico establecido para los procedimientos PLS y los modelos PLS (Wold, 1982; Krämer, 2006; Hanafi, 2007; Dijkstra, 2010). Es decir, (a) las estimaciones PLS estan siempre sesgadas, (b) las relaciones internas son subestimadas, (c) las relaciones externas son sobrestimadas, (d) el Modo A carece de la propiedad de convergencia monótona, (3) el Modo B tiene la propiedad de convergencia monótona. (6) Evidencia empírica acerca de la convergencia “at large” de PLS Path Modelling con Modo A. (7) Evidencia empírica para los modelos formativos con pocos indicadores (8) Evidencia empírica del desempeño del procedimiento Two-Step PLS Path Modelling con Modo C para estimar efectos no lineales y de interacción entre constructos formativos.
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Poudel, Om Prakash. "Identification of barriers and least cost paths for autonomous vehicle navigation using airborne LIDAR data." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/43304.

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In the past several years, the Defense Advanced Research Projects Agency (DARPA) has sponsored two Grand Challenges, races among autonomous ground vehicles in rural environments. These vehicles must follow a course delineated by Global Positioning System waypoints using no human guidance. Airborne LIDAR data and GIS can play a significant role in identifying barriers and least cost paths for such vehicles. Least cost paths minimize the sum of impedance across a surface. Impedance can be measured by steepness of slope, impenetrable barriers such as vegetation and buildings, fence lines and streams, or other factors deemed important to the vehicleâ s success at navigating the terrain. This research aims to provide accurate least cost paths for those vehicles using airborne LIDAR data. The concepts of barrier identification and least cost path generation are reviewed and forty-five least cost paths created with their performance compared to corresponding Euclidean paths. The least cost paths were found superior to the corresponding Euclidean paths in terms of impedance as they avoid barriers, follow roads and pass across relatively gentler slopes.
Master of Science
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Ekin, Cengiz. "Efficient grid based techniques for solving the weighted region least cost path problem on multicomputers." Thesis, Monterey, California. Naval Postgraduate School, 1992. http://hdl.handle.net/10945/23654.

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This thesis explores the possibilities of developing fast grid parallel algorithms to solve the Weighted Region Least Cost Path problem. Two complimentary steps have been undertaken. First, an efficient sequential algorithm to solve the above problem was developed. the algorithm is a modification of a Gauss-Seidel-like algorithm for obtaining the minimum costs. The most salient feature of the algorithm is the reduction of the number of nodes and edges in cheaper regions of the grid. the reported experimental results ascertain the superiority of this algorithm with regard to computer running time at a modest reduction in the accuracy of the obtained solution. Parallel implementations of grid-based algorithms were studies. A simple grid-based variant was implemented on a network of Transputers. The overall approach is employed could be used to develop a parallel version of the above sequential algorithm on a Transputer network, combining both advantages of efficiency and parallelization.
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MacFarlane, Mark J. "The Path of Least Resistance: The Failure of Humanitarianism and American Foreign Policy in Sudan." Master's thesis, University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5412.

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This thesis examines America's response to civil war, dispossession, and humanitarian disaster in Sudan from the end of the Cold War up until the second Darfur uprising. While the number of scholarly works examining the overall conflict and humanitarian crisis are immense, less has been written in regard to America's foreign policy in Sudan. The contemporary nature of the crisis and dearth of historical analysis does make establishing trends difficult; but recent works suggest a U.S. policy that is ill informed and therefore ineffectual in halting both the conflict and crisis in Sudan. However, contrary to this opinion, the evidence may demonstrate that United States policy, rather than a series of misjudgments or being simply ineffectual, has been more systematic, informed and purposeful. This thesis argues that while the United States wished for peace in Sudan, the historical evidence suggests that the path taken by the United States knowingly prolonged the suffering of millions of Sudanese. Furthermore, American policy makers have entrusted peace in Darfur and in other disparate regions of Sudan, as well as along the newly formed borders with South Sudan, to the National Congress Party (NCP) a regime Congress has labeled untrustworthy and despotic. The bulk of the research used in this examination covered the period from 1989- 2008. However, the independence achieved by the Republic of South Sudan in the summer of 2011 is taken into account in the final analysis of the thesis. The secondary sources both cited and considered for the thesis were substantial; these included academic articles, studies, and texts published over several decades in several related fields of study germane to the thesis topic. While a wide range of primary sources were used, the thesis relied heavily on United States Congressional records from 1989-2008 for analysis. ?
ID: 031001389; System requirements: World Wide Web browser and PDF reader.; Mode of access: World Wide Web.; Adviser: Ezekiel Walker.; Title from PDF title page (viewed May 24, 2013).; Thesis (M.A.)--University of Central Florida, 2012.; Includes bibliographical references (p. 123-134).
M.A.
Masters
History
Arts and Humanities
History
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8

Seegmiller, Lindsi. "Modeling and optimization of least-cost corridors." Licentiate thesis, KTH, Geoinformatik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-291279.

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Given a grid of cells, each having a value indicating its cost per unit area, a variant of the least-cost path problem is to find a corridor of a specified width connecting two termini such that its cost-weighted area is minimized. A computationally efficient method exists for finding such corridors, but as is the case with conventional raster-based least-cost paths, their incremental orientations are limited to a fixed number of (typically eight orthogonal and diagonal) directions, and therefore, regardless of the grid resolution, they tend to deviate from those conceivable on the Euclidean plane. Additionally, these methods are limited to problems found on two-dimensional grids and ignore the ever-increasing availability and necessity of three-dimensional raster based geographic data. This thesis attempts to address the problems highlighted above by designing and testing least-cost corridor algorithms. First a method is proposed for solving the two-dimensional raster-based least-cost corridor problem with reduced distortion by adapting a distortion reduction technique originally designed for least-cost paths and applying it to an efficient but distortionprone least-cost corridor algorithm. The proposed method for distortion reduction is, in theory, guaranteed to generate no less accurate solutions than the existing one in polynomial time and, in practice, expected to generate more accurate solutions, as demonstrated experimentally using synthetic and real-world data. A corridor is then modeled on a threedimensional grid of cost-weighted cubic cells or voxels as a sequence of sets of voxels, called ‘neighborhoods,’ that are arranged in a 26-hedoral form, design a heuristic method to find a sequence of such neighborhoods that sweeps the minimum cost-weighted volume, and test its performance with computer-generated random data. Results show that the method finds a low-cost, if not least-cost, corridor with a specified width in a threedimensional cost grid and has a reasonable efficiency as its complexity is O(n2) where n is the number of voxels in the input cost grid and is independent of corridor width. A major drawback is that the corridor found may self-intersect, which is often not only an undesirable quality but makes the estimation of its cost-weighted volume inaccurate.
Med tanke på ett rutnät av celler, som vart och ett har ett värde som indikerar dess kostnad per areaenhet, är en variant av det billigaste banproblemet att hitta en korridor med en specificerad bredd som förbinder två terminaler så att dess kostnadsviktade område minimeras. Det finns en beräkningseffektiv metod för att hitta sådana korridorer, men som är fallet med konventionella rasterbaserade lägsta kostnadsspår är deras inkrementella orienteringar begränsade till ett fast antal (vanligtvis åtta ortogonala och diagonala) riktningar, och därför, oavsett nätupplösning tenderar de att avvika från de tänkbara på det euklidiska planet. Dessutom är dessa metoder begränsade till problem som finns i tvådimensionella nät och ignorerar den ständigt ökande tillgängligheten och nödvändigheten av tredimensionell rasterbaserad geografisk data. Denna avhandling försöker ta itu med problemen som belyses ovan genom att utforma och testa korridoralgoritmer till lägsta kostnad. Först föreslås en metod för att lösa det tvådimensionella rasterbaserade problemet med billigaste korridorer med minskad förvrängning genom att anpassa en distorsionsminskningsteknik som ursprungligen utformades för billigaste vägar och tillämpa den på en effektiv men distorsionsbenägen billigaste korridoralgoritm. Den föreslagna metoden för distorsionsminskning är i teorin garanterad att generera inte mindre exakta lösningar än den befintliga i polynomtid och i praktiken förväntas generera mer exakta lösningar, vilket demonstreras experimentellt med syntetiska och verkliga data. En korridor modelleras sedan på ett tredimensionellt rutnät av kostnadsvägda kubikceller eller voxels som en sekvens av uppsättningar av voxels, kallade "stadsdelar", som är ordnade i en 26-hedoral form, designar en heuristisk metod för att hitta en sekvens av sådana stadsdelar som sveper den lägsta kostnadsviktade volymen och testar dess prestanda med datorgenererade slumpmässiga data. Resultaten visar att metoden hittar en låg kostnad, om inte minst kostnad, korridor med en specificerad bredd i ett tredimensionellt kostnadsnät och har en rimlig effektivitet eftersom dess komplexitet är O (n2) där n är antalet voxlar i ingångskostnadsnätet och är oberoende av korridorbredd En stor nackdel är att korridoren som hittas kan korsa sig själv, vilket ofta inte bara är en oönskad kvalitet utan gör uppskattningen av dess kostnadsviktade volym felaktig.

QC 20210309

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9

Agbenowosi, Newland Komla. "GIS based optimal design of sewer networks and pump stations." Thesis, Virginia Tech, 1995. http://hdl.handle.net/10919/43184.

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In the planning and design of sewer networks, most of the decisions are spatially dependent because of the right of way considerations and the desire to have flow by gravity. This research addresses the application of combined optimization-geographic information system (GIS) technology in the design process. The program developed for the design uses selected manhole locations to generate the candidate potential sewer networks. The design area is delineated into subwatersheds for determining the locations for lift stations when gravity flow is not possible. Flows from upstream subwatersheds are transported to the downstream subwatersheds via a force main. The path and destination of each force main in the system is determined by applying the Dijkstra's shortest path algorithm to select the least cost path from a set of potential paths. This method seeks to minimize the total dynamic head. A modified length is used to represent the length of each link or force main segment. The modified length is the physical length of the link (representing the friction loss) plus an equivalent length (representing the static head). The least cost path for the force main is the path with the least total modified length. The design approach is applied to two areas in the town of Blacksburg, Virginia. The resulting network and the force main paths are discussed.


Master of Science
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DeJong, Dale Alan. "The Path of Least Resistance: An Advanced Index Alternative to the Cultural Distance Index for Measuring International Expansion." FIU Digital Commons, 2017. http://digitalcommons.fiu.edu/etd/3483.

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In response to a call for more advanced and more inclusive models for measuring difficulty of international expansion, the resistance index (RI) was created and is advanced in this paper. The RI includes several factors that contribute (detract) to the success (failure) of firms regarding cross border expansion. The RI features variables that represent country specific advantages (CSA), firm specific advantages (FSA), and government specific advantages (GSA). These three areas are represented by a diverse set of data obtained from such widely recognized agencies as the World Bank and Thomson Reuters. Taking data from different sources, may render better predictability for firms than using the popular cultural distance index. Therefore, it is proposed that the RI may be a more relevant tool for firms to use when they are considering international expansion into a particular country, or for researchers to employ in undertaking success or failure in international expansion.
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Books on the topic "Least Pth"

1

Latan, Hengky, and Richard Noonan, eds. Partial Least Squares Path Modeling. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-64069-3.

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Lohmöller, Jan-Bernd. Latent variable path modeling with partial least squares. Heidelberg: Physica-Verlag, 1989.

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Resistance, Central Health Services Council Sub-Group on Antimicrobial. The path of least resistance: Summary and recommendations. London: Department of Health, 1998.

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Lohmöller, Jan-Bernd. Latent Variable Path Modeling with Partial Least Squares. Heidelberg: Physica-Verlag HD, 1989. http://dx.doi.org/10.1007/978-3-642-52512-4.

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Garcia, Ivan. Solving the weighted region least cost path problem using transputers. Monterey, Calif: Naval Postgraduate School, 1989.

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Ivanko, John D. The least imperfect path: A global journal for the future. Royal Oak, Mich: Paradigm Press, 1996.

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Mackenzie, Hugh. Funding postsecondary education in Ontario: Beyond the path of least resistance. [Toronto, ON]: Ontario Coalition for Postsecondary Education, 2004.

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The path of least resistance for managers: Designing organizations to succeed. San Francisco, CA: Berrett-Koehler Publishers, 1999.

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Baker, Malcolm. Corporate financing decision when investors take the path of least resistance. Cambridge, MA: National Bureau of Economic Research, 2004.

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Ekin, Cengiz. Efficient grid based techniques for solving the weighted region least cost path problem on multicomputers. Monterey, Calif: Naval Postgraduate School, 1992.

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Book chapters on the topic "Least Pth"

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Noonan, Richard. "Partial Least Squares: The Gestation Period." In Partial Least Squares Path Modeling, 3–18. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-64069-3_1.

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Matthews, Lucy. "Applying Multigroup Analysis in PLS-SEM: A Step-by-Step Process." In Partial Least Squares Path Modeling, 219–43. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-64069-3_10.

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Kock, Ned. "Common Method Bias: A Full Collinearity Assessment Method for PLS-SEM." In Partial Least Squares Path Modeling, 245–57. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-64069-3_11.

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Petrarca, Francesca, Giorgio Russolillo, and Laura Trinchera. "Integrating Non-metric Data in Partial Least Squares Path Models: Methods and Application." In Partial Least Squares Path Modeling, 259–79. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-64069-3_12.

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Sharma, Pratyush N., Ryan T. Pohlig, and Kevin H. Kim. "Model Misspecifications and Bootstrap Parameter Recovery in PLS-SEM and CBSEM-Based Exploratory Modeling." In Partial Least Squares Path Modeling, 281–96. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-64069-3_13.

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Frank Falk, R. "Personality, Intellectual Ability, and the Self-Concept of Gifted Children: An Application of PLS-SEM." In Partial Least Squares Path Modeling, 299–310. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-64069-3_14.

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Latan, Hengky, Charbel Jose Chiappetta Jabbour, and Ana Beatriz Lopes de Sousa Jabbour. "Ethical Awareness, Ethical Judgment, and Whistleblowing: A Moderated Mediation Analysis." In Partial Least Squares Path Modeling, 311–37. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-64069-3_15.

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Geladi, Paul, Hans Grahn, and Kim H. Esbensen. "Latent Variable Regression for Laboratory Hyperspectral Images." In Partial Least Squares Path Modeling, 339–65. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-64069-3_16.

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Streukens, Sandra, Sara Leroi-Werelds, and Kim Willems. "Dealing with Nonlinearity in Importance-Performance Map Analysis (IPMA): An Integrative Framework in a PLS-SEM Context." In Partial Least Squares Path Modeling, 367–403. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-64069-3_17.

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Henseler, Jörg, Geoffrey Hubona, and Pauline Ash Ray. "Partial Least Squares Path Modeling: Updated Guidelines." In Partial Least Squares Path Modeling, 19–39. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-64069-3_2.

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Conference papers on the topic "Least Pth"

1

Singer, Andrew C., Suleyman S. Kozat, and Georg C. Zeitler. "Universal Context Tree PTH-Order Least Squares Prediction." In 2006 IEEE Signal Processing Society Workshop. IEEE, 2006. http://dx.doi.org/10.1109/mlsp.2006.275537.

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Nagaraj, Sunil B., Rajeev Nongpiur, and Andreas Antoniou. "Design of nearly linear-phase recursive digital filters by using unconstrained least-pth minimax optimization." In 2010 4th International Symposium on Communications, Control and Signal Processing (ISCCSP). IEEE, 2010. http://dx.doi.org/10.1109/isccsp.2010.5463429.

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Lu, W. S., Y. Cui, and R. L. Kirlin. "Least pth optimization for the design of 1-D filters with arbitrary amplitude and phase responses." In Proceedings of ICASSP '93. IEEE, 1993. http://dx.doi.org/10.1109/icassp.1993.319435.

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Seidl, S. "SCREENING PROCEDURES TO PREVENT TRANSMISSION OF HEPATITIS B, NON-A,NON-B, AND AIDS BY BLOOD TRANSFUSION." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644753.

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Although the number of infectious agents capable of being transmitted through blood and blood products is vast, only a few cause problems in recipients of a magnitude which warrants the need for screening tests. The most important agents are Hepatitis B Virus (HBV), Hepatitis non-A,non-B (HNANB) - agents causing posttransfusion hepatitis (PTH) and the human immundeficiency viruses (HIV) responsible for transfusion associated AIDS (TAA).PTH: Prospective studies in open-heart-surgery patients demonstrated a high prevalence (8-17%) *in Spain, Italy, the United States and Israel whereas low percentages (2-5%) were observed in Australia, Finland and West-Germany. Among haemophiliacs acute and chronic hepatitis is a rather frequent complication. Serologic markers of HBV infection have been observed in the majority of patients. Since HBsAg screening has been introduced most cases of PTH (>90%) are due to infection with HNANB-agents. For this type of hepatitis no specific assay exists. It has been suggested that surrogate tests (ALT, anti-HBc screening) might serve as interim screening measure. In prospective studies in the USA a correlation has been observed between donor ALT and recipient hepatitis, but not more than 30% of PTH can be prevented at a loss of 1,5 to 3,0% of the donor population. Similar data have been reported when blood donors were screened for anti-HBc. There was a significantly higher incidence of PTH in recipients receiving at least one unit of anti HBc positive blood. This was recently confirmed in a study in which patients received blood with ALT-levels below 30 IU/ml. The incidence of HNANB was 2,1% after transfusion with anti HBc negative blood whereas 10,1% developed HNANB when anti HB positive blood was transfused (P=< 0.0001). However, these two markers (ALT, anti HBc) do not identify the same NANB carrier population. - ALT screening and testing for anti-HBc have been recently instituted in the USA as “surrogate tests” for detecting HNANB carriers.TAA: Among the total number of AIDS cases there ist a small percentage caused by transfusion of blood and blood products. In the USA approximately 2% of TAA have been reported, 1 % of AIDS patients are haemophiliacs but the majority of haemophiliacs are HIV-antibody positive. According to a survey of the Council of Europe (March 1986) the percentages of HIV positive European haemophiliacs varies between 4 to 8% (Belgium, Norway) and 30 to 60% in other European countries. The number of TAA-cases is around 1%, AIDS among European haemophiliacs has been observed up to 5% of the total AIDS cases. - Screening for HIV antibodies in blood donors was introduced in most European countries and the USA in early summer 1985, but several thousands of recipients of HIV positive blood (issued before) are now virus carriers. This has been confirmed in “look back” programmes: A substantial number of recipient (50 to 90%) has been found to be HIV positive.-A major disadvantage of the HIV antibody test is the fact that antibodies appear several weeks after infection. The gap between infection and detecting HIV antibodies may be reduced by an antigen test, which recognizes the HIV infection as early as two weeks after infection. - The recent detection of HIV 2 implies the necessity of developing tests for the identification of variants of HIV.
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Sharma, Pratyush Nidhi, Marko Sarstedt, Galit Shmueli, and Kevin H. Kim. "Predictive model selection in partial least squares path modeling (PLS-PM)." In 2nd International Symposium on Partial Least Squares Path Modeling - The Conference for PLS Users. University of Twente, 2015. http://dx.doi.org/10.3990/2.336.

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Yu, Yiqing, and Qinghua Zhu. "How transformation expectation leads consumers to immediate gratification - A PLS-SEM approach." In 2nd International Symposium on Partial Least Squares Path Modeling - The Conference for PLS Users. University of Twente, 2015. http://dx.doi.org/10.3990/2.337.

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Pereira-Moliner, Jorge, Juan José Tarí, José F. Molina-Azorín, and María D. López-Gamero. "A proposal of a research model on internalization of quality standards using PLS." In 2nd International Symposium on Partial Least Squares Path Modeling - The Conference for PLS Users. University of Twente, 2015. http://dx.doi.org/10.3990/2.338.

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Romero, Jaime, and Shintaro Okazaki. "Exploring customer engagement behavior: construct proposal and its antecedents." In 2nd International Symposium on Partial Least Squares Path Modeling - The Conference for PLS Users. University of Twente, 2015. http://dx.doi.org/10.3990/2.339.

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Castro, Ignacio, Ángeles Gallego, and Cristóbal Casanueva. "Resource mobilization levels and the configuration of the alliance portfolio." In 2nd International Symposium on Partial Least Squares Path Modeling - The Conference for PLS Users. University of Twente, 2015. http://dx.doi.org/10.3990/2.340.

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Tressin, Tabea, Nicole Franziska Richter, and David F. Midgley. "The influence of organizational structure on international purchasing success." In 2nd International Symposium on Partial Least Squares Path Modeling - The Conference for PLS Users. University of Twente, 2015. http://dx.doi.org/10.3990/2.341.

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Reports on the topic "Least Pth"

1

Kienle, Frederick R. Reconnaissance-Pul - Seeking the Path of Least Resistance. Fort Belvoir, VA: Defense Technical Information Center, December 1990. http://dx.doi.org/10.21236/ada233407.

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Seybold, Patricia. Making Outside Innovation the “Path of Least Resistance” in Your Organization. Boston, MA: Patricia Seybold Group, May 2006. http://dx.doi.org/10.1571/bp5-11-06cc.

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Baker, Malcolm, Joshua Coval, and Jeremy Stein. Corporate Financing Decisions When Investors Take the Path of Least Resistance. Cambridge, MA: National Bureau of Economic Research, December 2004. http://dx.doi.org/10.3386/w10998.

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Choi, James, David Laibson, Brigitte Madrian, and Andrew Metrick. Defined Contribution Pensions: Plan Rules, Participant Decisions, and the Path of Least Resistance. Cambridge, MA: National Bureau of Economic Research, December 2001. http://dx.doi.org/10.3386/w8655.

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Konaev, Margarita, and Husanjot Chahal. The Path of Least Resistance: Multinational Collaboration on AI for Military Logistics and Sustainment. Center for Security and Emerging Technology, April 2021. http://dx.doi.org/10.51593/20200052.

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As multinational collaboration on emerging technologies takes center stage, U.S. allies and partners must overcome the technological, bureaucratic, and political barriers to working together. This report assesses the challenges to multinational collaboration and explains how joint projects centered on artificial intelligence applications for military logistics and sustainment offer a viable path forward.
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Chambers, Katherine, Joshua Murphy, and Kathryn McIntosh. 2017 hurricane season : recommendations for a resilient path forward for the Marine Transportation System. Engineer Research and Development Center (U.S.), July 2021. http://dx.doi.org/10.21079/11681/41285.

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In October 2017, the Coordinating Board of the US Committee on the Marine Transportation System tasked the MTS Resilience Integrated Action Team to identify the impacts, best practices, and lessons learned by federal agencies during the 2017 hurricane season. The RIAT studied the resiliency of the MTS by targeting its ability to prepare, respond, recover, and adapt to and from disruptions by turning to the collective knowledge of its members. Utilizing interagency data calls and a targeted workshop, the RIAT gauged the disruptive effect of the 2017 hurricane season and how Hurricanes Harvey, Irma, and Maria affected the operating status of at least 45 US ports across three major regions. This report identifies recommendations to better understand how the MTS can prepare for future storms and identifies activities by federal agencies that are contributing towards resilience. Such actions include hosting early pre-storm preparedness meetings, prioritizing communication between agencies and information distribution, and maintaining or updating existing response plans. Recommendations also target challenges experienced such as telecommunication and prioritization assistance to ports and critical infrastructure. Finally, the report offers opportunities to minimize the impacts experienced from storms and other disruptions to enhance the resilience of the MTS and supporting infrastructure.
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