bluuebunny/crossref_metadata_2025_split huggingface dataset:
Automatic targetless camera–LIDAR calibration by aligning edge with Gaussian mixture model
Authors: Kang Jaehyeon , Doh Nakju L. 
Published: August 2019

AbstractThis paper presents a calibration algorithm that does not require an artificial target object to precisely estimate a rigid‐body transformation between a camera and a light detection and ranging (LIDAR) sensor. The proposed algorithm estimates calibration parameters by minimizing a cost function that evaluates the edge alignment between two sensor measurements. In particular, the proposed cost function is constructed using a projection model‐based many‐to‐many correspondence of the edges to fully exploit measurements with different densities (dense photometry and sparse geometry). The alignment of the many‐to‐many correspondence is represented using the Gaussian mixture model (GMM) framework. Here, each component of the GMM, including weight, displacement, and standard deviation, is derived to suitably capture the intensity, location, and influential range of the edge measurements, respectively. The derived cost function is optimized by the gradient descent method with an analytical derivative. A coarse‐to‐fine scheme is also applied by gradually decreasing the standard deviation of the GMM to enhance the robustness of the algorithm. Extensive indoor and outdoor experiments validate the claim that the proposed GMM strategy improves the performance of the proposed algorithm. The experimental results also show that the proposed algorithm outperforms previous methods in terms of precision and accuracy by providing calibration parameters of standard deviations less than 0.6° and 2.1 cm with a reprojection error of 1.78 for a 2.1‐megapixel image (2,048 × 1,024) in the best case.
Tumour growth activation by the central nervous system—An integrative theory of cancer
Authors: Recio Alberto 
Published: August 2019

AbstractThe currently recognized mechanisms of the biology of cancer are not yet enough to explain the high incidence of the disease in industrialized countries. Survival and proliferation of cancer cells demand a well‐orchestrated combination of functional capabilities, or hallmarks, which requires complex signalling networks that often exceed the tumour boundaries. Based on latest research on environmental health and aiming to provide cancer with a coherent set of organizing principles, we propose an integrative model of carcinogenesis founded on tumour growth activation by the central nervous system as an adaptive, allostatic response to both environmental and emotional challenges. In this way, chronicity of physical as well as psychological stressors may be directly involved in cancer genesis and progression, after an early inflammatory stage. The model also contemplates accidental activation of the tumour growth programme following direct DNA damage, but as a rare event that does not account for most cancers in humans. Bodily and cellular mechanisms designed to facilitate tumorigenesis may include exacerbation of the sympathetic activity, overexpression of membrane ion channels, promotion of selected mutations and methylations, degradation of the mitochondria and reprogramming of adult stem cells.
A process partitioning technique for constructing decentralized web service compositions
Authors: Xue Gang , Liu Di , Liu Junsong , Yao Shaowen 
Published: August 2019

SummaryWeb service compositions have been widely applied in different applications. A service composition is usually implemented in either a centralized or decentralized manner. Compared with the centralized service composition, the decentralized composition has no central control component, and components interact with each other directly, thereby achieving better performance. Process partitioning is a technique to divide a process into multiple parts and has been shown that it can be successfully applied to decentralizing process‐driven service compositions. This paper proposes a new process partitioning technique for constructing decentralized service compositions. The proposed technique, which is based on typed digraphs and a graph transformation technique, is used for exploring available process partitioning solutions. For applications, this paper discusses the topology and interaction features about the partitioning solutions and summarizes a ranking method for them. Three experiments are conducted to evaluate the proposed methods in this paper. Experimental results show that the proposed methods can be applied in constructing decentralized service compositions effectively. In addition, the results also show that the decentralized compositions can have lower average response times and higher throughputs than the corresponding centralized compositions in the experiments.
When zoo visitors “connect” with a zoo animal, what does that mean?
Authors: Howell Tiffani J. , McLeod Emily M. , Coleman Grahame J. 
Published: August 2019

AbstractConnection with a zoo animal may increase conservation‐mindedness in zoo visitors, potentially resulting in conservation‐oriented behavior change. No research has attempted to establish what this “connection” actually means. Visitors (N = 85) to Melbourne Zoo were asked to name the animal with which they most connected, the extent to which they connected with it, and to qualitatively describe what it meant to connect with that animal. Many (but not all) participants connected with charismatic megafauna: primate, great ape, large carnivore, or large herbivore. Qualitative analysis revealed five common themes in the meaning of connection: Appreciation, Attribution, Inspires Emotions, Interaction, and Proximity. Overall connection level was significantly correlated with perceptions of conservation caring for the chosen species. Future research should aim to determine what factors affect a zoo visitor's connection level, which could impact attitudes and behaviors toward conservation.
Prognostic Characteristics of Primary Squamous Cell Carcinoma of the Thyroid: A National Cancer Database Analysis
Authors: Limberg Jessica , Ullmann Timothy M. , Stefanova Dessislava , Finnerty Brendan M. , Beninato Toni , Fahey Thomas J. , Zarnegar Rasa 
Published: August 2019

AbstractBackgroundPrimary squamous cell carcinoma of the thyroid (ThySCC) is a rare cancer, primarily described only in case reports. We aimed to characterize the prognosis of ThySCC and compare its oncologic behavior to other thyroid malignancies.MethodsThe National Cancer Database was queried to identify patients with ThySCC, papillary, tall cell variant, poorly differentiated (PDTC), and anaplastic (ATC) subtypes of thyroid cancer treated from 2004 to 2015. Demographics, tumor characteristics, and treatments were compared by tumor type and assessed to identify independent predictors of overall survival (OS).ResultsOf 123,684 patients included, 314 had ThySCC. ThySCC patients had a 5‐year OS of 17.7%, more closely resembling ATC (8.3%) than PDTC or PTC. ThySCC and ATC patients had similar demographics, except ThySCC patients who were younger (68.0 vs. 70.2 years, p < 0.01). ThySCC tumors were smaller (mean 53.5 ± 45.7 vs. 69.5 ± 75.2 mm) with less frequent extrathyroidal extension (ETE) (64.0% vs. 73.8%), lymphovascular invasion (8.3% vs. 12.3%), and positive margins (22.0% vs. 28.3%) compared to ATCs (p < 0.05). ETE [HR 3.1 (95% CI 1.5–6.4), p < 0.05] and lymph node metastases [HR 2.2 (95% CI 1.2–4.0) p < 0.05] were independently associated with worse OS for ThySCC patients. Both ThySCC and ATC patients had similar surgical success rates, with R1 resection possible in 37.3% versus 35.0% of patients, respectively (p < 0.05). However, in contrast to ATC patients, adjuvant therapy was not associated with improved OS for ThySCC patients after complete resection.ConclusionsThySCC has a poor prognosis, similar to ATC, but with fewer aggressive features and no apparent survival benefit with adjuvant therapy after complete macroscopic surgical resection.
Utility of Activated Carbon Nanoparticle (CNP) During total Thyroidectomy for Clinically Nodal Positive Papillary Thyroid Carcinoma (PTC)
Authors: Min Lei , Lang Brian H. H. , Chen Weichun , Ai Qing , Jiang Jiang , Huang Zhi Heng 
Published: August 2019

AbstractBackgroundActivated carbon nanoparticle (CNP) is a novel tracer that may facilitate nodal dissection in clinically nodal positive (cN1) papillary thyroid carcinoma (PTC). The present study compared the nodal yield and surgical outcomes between surgery with CNP and without CNP.MethodsPatients who underwent total thyroidectomy with therapeutic nodal dissection for cN1 PTC were given the option of intraoperative CNP injection. Among those who received CNP, 0.2 mL CNP suspension was injected in both thyroid lobes before dissection. Study endpoints included number of total and metastatic lymph nodes, inadvertently removed parathyroid glands (PGs), postoperative parathyroid hormone, calcium, and post‐6‐month thyroglobulin (Tg). Biochemical complete response (BCR) was defined as Tg ≤ 1 ng/mL and/or stimulated Tg ≤ 2 ng/mL.ResultsOne‐hundred and twenty patients (58.3%) received CNP, while 86 (41.7%) had surgery without CNP. Demographics, tumor characteristics, and operative time were comparable between the two groups. However, total mean number of normal and metastatic lymph nodes retrieved were significantly greater in CNP group (10.0 vs. 8.1, p = 0.032 and 4.5 vs. 2.7, p = 0.002, respectively). Rate of inadvertently removed PG was significantly less in CNP group (13.3% vs. 23.3%, p = 0.042). Postoperative Tg level and BCR were significantly lower in CNP group (9.9 ng/mL vs. 14.7 ng/mL, p = 0.297 and 82.4% vs. 72.9%, p = 0.002, respectively). However, large‐sized ( ≥ 3 cm) PTCs had a significantly lower nodal staining rate than smaller‐sized PTCs (10.3% vs. 69.4%, p < 0.001).ConclusionsCNP injection can facilitate therapeutic central nodal dissection by increasing the nodal yield rates and reducing inadvertent PG removal. To enhance its utility, a greater volume of CNP might be necessary in larger‐sized (> 3 cm) PTCs.
Intra-articular Tranexamic Acid in Primary Total Knee Arthroplasty Decreases the Rate of Post-operative Blood Transfusions in People with Hemophilia: A Retrospective Case-Control Study
Authors: Rodriguez-Merchan E. Carlos , Encinas-Ullan Carlos A. , Gomez-Cardero Primitivo 
Published: August 2019

Background Blood transfusion rates after total knee arthroplasty (TKA) in patients without hemophilia have diminished with the use of a standardized multimodal blood loss prevention method (MBLPM) that includes intra-articular tranexamic acid (TXA) (MBLPM-TXA). However, the topic has not been addressed in people with hemophilia. Questions/Purposes Our aim was to investigate whether the MBLPM-TXA prevents blood loss in patients with hemophilia A who undergo TKA, thereby decreasing the need for post-operative blood transfusion. Methods This retrospective case–control comparative study involved 30 TKA patients who had a severe degree of hemophilia A without inhibitions: one group treated with the MBLPM-TXA ( n = 15) and a second group treated without it ( n = 15). In all cases, the pre-operative hemoglobin level was greater than 13 g/dL. Results The MBLPM-TXA group had a transfusion rate of zero, whereas 46.6% of the patients (seven of 15) in the non–MBLPM-TXA group needed transfusion. Conclusion This retrospective case–control study showed that the use of an MBLPM-TXA in patients with hemophilia A who underwent TKA was effective in reducing rates of transfusion. We recommend its use.
Laboratory evaluation to assess the effectiveness of inhibitive nano-water-based drilling fluids for Zubair shale formation
Authors: Alsaba Mortadha , Al Marshad Abdullah , Abbas Ahmed , Abdulkareem Talal , Al-Shammary Abdullah , Al-Ajmi Meshal , Kebeish Emad 
Published: August 2019

AbstractWhile drilling through shale formations, shale hydration, including shale swelling and dispersion, is frequently reported as the main wellbore instability problems, particularly when conventional drilling fluids (water-based) are used. These problems have many adverse effects on the drilling operations resulting in non-productive time. Nanoparticles have been recently introduced as a unique alternative to improve the performance of water-based drilling fluids for shale applications. This paper presents an experimental evaluation to investigate the effectiveness of an inhibitive nano-water-based drilling fluid in reducing the swelling of Zubair shale formation. Well-preserved core samples, which were retrieved from Zubair formation, were characterized using X-ray diffraction, and X-ray fluoresces to quantify the amount of the swelling minerals. Scanning electron microscopy was used to identify the existence of microfractures within the samples. Three different nano-based drilling fluids containing titanium dioxide (TiO2), copper oxide (CuO), and magnesium oxide (MgO) at two different concentrations (0.5% and 1.5% by vol) were evaluated through a set of tests to assess the shale reactivity in the presence of these nano-based fluids. In addition, the effect of these nanoparticles on the rheological and filtration properties was studied. The results showed that the shale samples contain 41.26% silicon dioxide (SiO2) and 22.73% aluminum oxide (Al2O3), indicating the presence of smectite and illite. Based on the reactivity tests, fluids containing CuO at 1.5% by vol outperformed the other fluids in terms of reducing the reactivity, where the expansion rate was reduced by 82.7% compared to the reference sample submerged in fresh water. In addition, the addition of nanoparticles resulted in reducing the plastic viscosity, increasing both the yield point and gel strength, and reducing the fluid loss under low-pressure low-temperature conditions.
Impact of Index Surgical Care Setting on Perioperative Outcomes and Cost Following Penile Prosthesis Surgery
Authors: Berger Alexandra , Friedlander David F. , Herzog Peter , Ortega Gezzer , O’Leary Michael , Kathrins Martin , Trinh Quoc-Dien 
Published: August 2019

ABSTRACT

Background
Penile prosthesis surgery has witnessed a migration from the inpatient to ambulatory surgical care setting. However, little is known about the cost savings afforded by this change in care setting and whether or not these savings come at the expense of worse perioperative outcomes.

Aim
The aim of this study was to identify predictors of index penile prosthesis (PP) surgery care setting, and whether ambulatory vs inpatient surgery is associated with comparable perioperative outcomes and costs.

Methods
This was a retrospective cohort study using all-payer claims data from the 2014 Healthcare Cost and Utilization Project State Databases from Florida and New York. Patient demographics, regional data, total charges (converted to costs), and 30-day revisit rates were abstracted for all patients undergoing index placement of an inflatable or malleable PP. Multivariable logistic and linear regression adjusted for facility clustering was utilized.

Outcomes
The outcomes were index surgical and 30-day postoperative costs, as well as 30-day revisit rates.

Results
Of the 1,790 patients undergoing an index surgery, 394 (22.0%) received care in the inpatient setting compared to 1,396 (78.0%) in the ambulatory setting. Adjusted index procedural ($9,319.66 vs $ 10,191.35; P &lt; .001) and 30-day acute care costs ($9,461.74 vs $10,159.42; P &lt; .001) were lower in the ambulatory setting. The underinsured experienced lower odds of receiving surgery in the ambulatory setting (Medicaid vs private: odds ratio [OR] 0.19; 95% CI 0.06−0.55; P &lt; .001). There was no difference in risk-adjusted odds of experiencing a 30-day revisit between patients undergoing surgery in the ambulatory vs inpatient settings (OR 1.31; 95% CI 0.78−2.21; P = .3).

Clinical Translation
Ambulatory PP surgery confers significant cost savings and is associated with comparable perioperative outcomes relative to inpatient-based surgery.

Conclusions
Both clinical and nonclinical factors predict the care setting of index PP surgery. Notably, underinsured patients experienced lower odds of undergoing ambulatory surgery. Ambulatory surgery was less costly with similar 30-day revisit rates relative to inpatient-based care.
Exact pitch and heave flutter for the complex Theodorsen function
Authors: Farthing S.P. 
Published: August 2019

ABSTRACTConcepts of new fluttering wind and water mills led to general solution of flutter by a foil section free to pitch about an axis ahead of${1}/{4}$chord. The pitch damping of the vorticity being shed by lift change is negative singular via the imaginary part of the Theodorsen function. So a 2D airfoil can slowly flutter in pure pitch at a very high inertia with radian frequency and growth rate, reduced by windspeed/chord, resp. less than .087 and .01. At the frequency of nil net pitch damping, the binary inertia/damping cross determinant vanishes on a line in the imbalance vs inertia plane. The perturbed frequency contours just a bit above and below this ‘beab’ line spectacularly split to asymptote to the pure pitch inertia vertical of implied infinite heave stiffness. Higher frequency contours turn back towards the positive imbalance axis and then the origin, changing from hyperbolic to elliptical at exactly the same .087 and asymptoting to a line between the nexus and four times the nexus and a mode of effective pitch about${3}/{4}$chord. At .6 the pure pitch frequency the imaginary part dominates in the quadratic inertia and imbalance coefficients to bend the neutral contours down and across the quasi-steady line to even turn back to very large negative imbalance at small inertia, where kinematics then imply high mass. Diagonally mirror hyperbolae exist for greater than the pure pitch inertia with a different dynamic implication of very high foil mass.
Uniqueness and time oscillating behaviour of finite points blow-up solutions of the fast diffusion equation
Authors: Hui Kin Ming 
Published: August 2019

AbstractLet n ⩾ 3 and 0 < m < (n − 2)/n. We extend the results of Vazquez and Winkler (2011, J. Evol. Equ. 11, no. 3, 725–742) and prove the uniqueness of finite points blow-up solutions of the fast diffusion equation ut = Δum in both bounded domains and ℝn × (0, ∞). We also construct initial data such that the corresponding solution of the fast diffusion equation in bounded domain oscillates between infinity and some positive constant as t → ∞.
Who Has School Spirit? Explaining Voter Participation in School Board Elections
Authors: McGregor R. Michael , Lucas Jack 
Published: August 2019

AbstractThis research note examines the correlates of turnout in Canadian school board elections. Using individual-level data from the Canadian Municipal Election Study, we find that gender, education, left-wing ideology, Conservative partisanship and parental status were associated with participation in Calgary's 2017 public school board elections. Some of these patterns relate to the specific details of Calgary's 2017 election; others, we suggest, may be characteristic of school board elections more generally. We relate our findings to the literature on ballot roll-off and low-turnout elections.
Kant on Race and Barbarism: Towards a More Complex View on Racism and Anti-Colonialism in Kant
Authors: Eberl Oliver 
Published: August 2019

AbstractWhether Kant’s late legal theory and his theory of race are contradictory in their account of colonialism has been a much-debated question that is also of highest importance for the evaluation of the Enlightenment’s contribution to Europe’s colonial expansion and the dispossession and enslavement of native and black peoples. This article discusses the problem by introducing the discourse on barbarism. This neglected discourse is the original and traditional European colonial vocabulary and served the justification of colonialism from ancient Greece throughout the Renaissance to the eighteenth century. Kant’s explicit rejection of this discourse and its prejudices reveals his early critical stance toward colonial judgements of native peoples even before he developed his legal theory. This development of his critical position can be traced in his writings on race: although he makes racist statements in these texts, his theory of race is not meant to ground moral judgements on ‘races’ or a racial hierarchy but to defend the unity of mankind under the given empirical reality of colonial hierarchies.
The WTO Panel Report inEU–Energy Packageand Its Implications for the EU's Gas Market and Energy Security
Authors: Pogoretskyy Vitaliy , Talus Kim 
Published: August 2019

AbstractThis article discusses the decision of the Panel of the World Trade Organization (WTO) in theEU–Energy Packagedispute between the Russian Federation and the European Union (EU) and certain of its Members. This decision is an important milestone in the history of the WTO. First, it presents a good example of how international economic disputes concerning politically sensitive matters, such as energy security, may be resolved in a pragmatic way, by adhering to multilateral trade rules of the WTO. Second, as the first WTO decision to address a Member's regulatory regime for natural gas, it reminds the WTO community that energy trade is not an alien subject for the WTO. In this article, we discuss some of the Panel's findings that may have significance for other similar cases, and examine the implications of these findings for the EU's internal gas market and energy security. The Panel's decision is currently under appeal with a ruling by the WTO Appellate Body not expected before the end of 2019. Hence, the outcome of this dispute remains uncertain.
Measurement and Modeling of High‐Frequency Acoustic Properties in Fine Sandy Sediments
Authors: Li G. , Wang J. , Liu B. , Meng X. , Kan G. , Pei Y. 
Published: August 2019

AbstractThe object of this study was to obtain the acoustic properties of fine sandy sediments with approximately 22% clay content from the East China Sea Shelf. This study conducted the in situ acoustic measurement to measure the sound speed and attenuation, and eight sediment cores were collected and measured the wet bulk density, porosity, and mean grain size in laboratory environment. The correlations between in situ sound speed ratio and physical properties show good accordance with two empirical equations, while the in situ attenuation factor deviated the regression curves. Both the sound speed ratio and the attenuation data show the obvious change against the measurement frequency. The comparisons of the measured sound speed ratio and attenuation to the Biot‐Stoll model predictions were performed. The sound speed ratio dispersion agrees well with the model prediction, when the permeability and pore size were calculated using the extended Kozeny‐Carman's equation and the extended Hovem's equation. The attenuation data in this study accords better with the prediction curves reported for fine sediments than that for coarse sediments from the 1999 Sediment Acoustics Experiment.