bluuebunny/crossref_metadata_2025_split huggingface dataset:
Enhancing Indoor Coverage by Multi-Pairs Copper Cables: The Analog MIMO Radio-over-Copper Architecture
Authors: Matera Andrea 
Published: October 2019

AbstractNowadays, the majority of indoor coverage issues arise from networks that are mainly designed for outdoor scenarios. Outdoor networks, somewhat uncontrollably, may penetrate indoors with the consequence of coverage holes and outage issues, hence reducing network performances. Moreover, the ever-growing number of devices expected for 5G worsens this situation, calling for novel bandwidth-efficient, low-latency and cost-effective solutions for indoor wireless coverage. This is the focus of this article, which summarizes the content of my Ph.D. thesis by presenting an analog Centralized Radio Access Network (C-RAN) architecture augmented by copper-cable, possibly pre-existing, to provide dense coverage inside buildings. This fronthaul architecture, referred to as Analog MIMO Radio-over-Copper (AMIMO-RoC), is an extreme RAN functional-split-option: the all-analog Remote Radio Units take the form of tiny, simple and cheap in-home devices, and Base Band Unit includes also signals’ digitization. The A-MIMO-RoC architecture is introduced in this article starting from demonstrating its theoretical feasibility. Then, the origin and evolution of A-MIMO-RoC are described step-by-step by briefly going through previous works based on numerical analysis and simulations results. Finally, the overall discussion is complemented by results obtained with a prototype platform, which experimentally prove the capability of A-MIMO-RoC to extend indoor coverage over the last 100–200 m. Prototype results thus confirm that the proposed A-MIMO-RoC architecture is a valid solution towards the design of dedicated 5G indoor wireless systems for the billions of buildings which nowadays still suffer from severe indoor coverage issues.
Effects of Social Disparities on Management and Surgical Outcomes for Patients with Secondary Hyperparathyroidism
Authors: Greene Brittany , Kim S. Joseph , McCarthy Ellen P. , Pasternak Jesse D. 
Published: October 2019

AbstractIntroductionNearly 80% of chronic renal failure patients have secondary hyperparathyroidism. Cinacalcet is used to lower parathyroid hormone; however, it is expensive and has side effects. When secondary hyperparathyroidism is resistant to medication or medications are inaccessible, parathyroidectomy is performed. Race and socioeconomic status influence access to care and surgical outcomes. We sought to evaluate the effect of race and socioeconomic status on parathyroidectomy rate as well as surgical outcomes of patients with secondary hyperparathyroidism.MethodsWe undertook cross‐sectional analysis of adults diagnosed with secondary hyperparathyroidism in the USA between 2012 and 2014, using the National Inpatient Sample. Univariate and multivariate analyses were used to determine associations between social disparities, likelihood to undergo parathyroidectomy, and surgical outcomes.ResultsBetween 2012 and 2014, a national estimate of 724,170 hospitalizations were identified where patients had a diagnosis of secondary hyperparathyroidism. Operative rate was 0.67%. By socioeconomic status, differences in rates of surgery in the poorest compared to the richest were not significant (0.74% vs. 0.55%, OR 1.08, p = 0.5). African‐American patients had higher rates of parathyroidectomy compared to Caucasians (1 vs. 0.74%, OR 1.49, p < 0.001). African‐American patients also had a trend toward more complications and greater length of stay.ConclusionsAccording to a large administrative dataset, parathyroidectomy for secondary hyperparathyroidism is seldom used in the USA. African‐American patients have higher rates of surgical management. Surgical outcomes may be affected by race. Clinicians treating secondary hyperparathyroidism should be aware of existing disparities within their health system.
Susceptibility of protein therapeutics to spontaneous chemical modifications by oxidation, cyclization, and elimination reactions
Authors: Grassi Luigi , Cabrele Chiara 
Published: October 2019

AbstractPeptides and proteins are preponderantly emerging in the drug market, as shown by the increasing number of biopharmaceutics already approved or under development. Biomolecules like recombinant monoclonal antibodies have high therapeutic efficacy and offer a valuable alternative to small-molecule drugs. However, due to their complex three-dimensional structure and the presence of many functional groups, the occurrence of spontaneous conformational and chemical changes is much higher for peptides and proteins than for small molecules. The characterization of biotherapeutics with modern and sophisticated analytical methods has revealed the presence of contaminants that mainly arise from oxidation- and elimination-prone amino-acid side chains. This review focuses on protein chemical modifications that may take place during storage due to (1) oxidation (methionine, cysteine, histidine, tyrosine, tryptophan, and phenylalanine), (2) intra- and inter-residue cyclization (aspartic and glutamic acid, asparagine, glutamine, N-terminal dipeptidyl motifs), and (3) β-elimination (serine, threonine, cysteine, cystine) reactions. It also includes some examples of the impact of such modifications on protein structure and function.
A Sufficiently Just Liberal Society is an Illusion
Authors: Ypi Lea 
Published: October 2019

Abstract
Matteo Bonotti’s book on Partisanship and Public Reason in Diverse Societies is grounded on a theory of partisanship that sees the demands of public reason as internal to the very definition of a party. Bonotti suggests that partisanship is not only compatible with but essential to the stability and legitimacy of a well-ordered liberal society. My paper aims to raise some questions internal to the liberal account of partisanship so as to probe the methodological foundations and plausibility of the liberal framework taken as a whole. My argument is that the assumption of a sufficiently just liberal society on which the book grounds its defence of partisanship makes us ill-equipped to face some of the most critical challenges that liberal societies face in the world that we live.
Water quality and physicochemical parameters of outgoing waters in a pharmaceutical plant
Authors: Hamaidi-Chergui Fella , Brahim Errahmani Mohamed 
Published: October 2019

AbstractThis work has focused on a pharmaceutical plant waters and the environmental impact of its discharges. The Water Quality Index (WQI), the Organic Pollution Index (OPI) and the Sodium Adsorption Ratio (SAR) of incoming and outgoing waters were analyzed over seasonal variations for 5 months using classical and mathematical indices. Highly significant increases were observed at the output (p < 0.001) for electrical conductivity, alkalinity, calcium and sodium; very significant (p < 0.01) for nitrites, COD and BOD5; significant (p < 0.05) for turbidity, potassium and chlorides. The sulfates, nitrates, phosphates, ammonia, TSS, magnesium, aluminum, iron and manganese showed no significant differences (p > 0.05). These parameters remained high all over the study period except for the BOD5. The WQI was reported in input waters in the range 85.9–89.5 indicating water safe for domestic use, range 42.3–60.9 (medium to bad) in output waters highlighting the water pollution. The OPI highlighted waters with low-to-moderate pollution, essentially due to high levels of nitrites. The SAR was found in “medium-to-high” salinity and “low sodium” ranges, thus precautions required in soils but without significant global effects. The COD/BOD5ratio highlighted a wastewater sometimes difficultly biodegradable (ratio > 3). In conclusion, often throughout all the study period, the outgoing waters were found with bad quality and non-negligible risks for soils; it is thus strongly advocated that these waters must undergo appropriate treatment to improve its physicochemical quality.
SEM morphological analysis of irradiated polystyrene film doped by a Schiff base containing a 1,2,4-triazole ring system
Authors: Ahmed Ahmed A. , Ahmed Dina S. , El-Hiti Gamal A. , Alotaibi Mohammad Hayal , Hashim Hassan , Yousif Emad 
Published: October 2019

Abstract
A Schiff base containing the 1,2,4-triazole moiety was synthesized and added to polystyrene at low concentration for a homogenous blend. The polystyrene film was irradiated with ultraviolet light and the surface morphology was analyzed. Micrographs of the polystyrene/Schiff base blend after irradiation indicated the fabrication of a terrestrial crack-like material. This was ascribed to the presence of the Schiff base, relatively long irradiation time, and photostability induced by the base. After irradiation, the blank polystyrene film formed a cotton-like fibrous material.
Viscous effects on the fundamental solution to ship waves
Authors: Liang Hui , Chen Xiaobo 
Published: October 2019

The fundamental solution to steady ship waves accounting for viscous effects (the viscous-ship-wave Green function) is investigated within the framework of the weakly damped free-surface flow theory. An explicit expression of the viscous-ship-wave Green function is firstly derived, and an accurate and efficient technique is described to evaluate the Green function via decomposing the free-surface term into the local-flow component and wave component. To delve into the physical features of the viscous-ship-wave Green function, the asymptotic approximations in the far field due to Kelvin, Havelock and Peters are presented for the flow-field point located inside, at and outside the Kelvin wedge. In addition, uniform approximations to the wave component based on the Chester–Friedman–Ursell (CFU) approximation and the Kelvin–Havelock–Peters (KHP) approximation are carried out. Both numerical evaluation and asymptotic approximations show that the singular behaviour is eliminated and the divergent waves associated with large wavenumbers leading to rapid oscillations are severely damped when viscous effects are accounted for. In addition, viscous effects also alter the apparent wake angle associated with the wave pattern created by a high-speed translating source, and the apparent wake angle is dependent on both $\mathscr{U}^{-1}$ and $\mathscr{U}^{-2}$, where $\mathscr{U}$ is the translating speed of the source.
Liquid jet primary breakup in a turbulent cross-airflow at low Weber number
Authors: Broumand M. , Birouk M. , Mahmoodi J. S. Vahid 
Published: October 2019

The influence of turbulence characteristics of a cross-airflow including its velocity fluctuations and integral length and time scales on the primary breakup regime, trajectory and breakup height and time of a transversely injected liquid jet was investigated experimentally. Turbulence intensity of the incoming airflow was varied from $u_{rms}/u_{g}=1.5\,\%$ to 5.5 % (where $u_{g}$ is cross-airflow streamwise mean velocity and $u_{rms}$ is the r.m.s. of the corresponding cross-airflow streamwise mean velocity fluctuation) by placing at the inlet of the test section a perforated plate/grid with a solidity ratio of $S=50\,\%$. Over the range of gas Weber number, $3.1<We_{g}<7.14$, the ensuing liquid jet exhibited more fluctuations and late breakup transitional behaviour under turbulent airflow conditions than in a uniform cross-airflow. Proper orthogonal decomposition of the liquid jet dynamics revealed that the use of grid caused a rise in the wavelength of travelling waves along the liquid jet, which hindered the transition of the liquid jet primary breakup regime from enhanced capillary breakup to the bag breakup mode. The quantitative results demonstrated that, at a constant airflow mean velocity, turbulent cross-airflow caused the liquid jet to bend earlier compared with its uniform counterpart. A power-law empirical correlation was proposed for the prediction of the liquid jet trajectory which takes into account the effect of turbulent Reynolds number. The liquid jet breakup height (in the $y$-axis direction) normalized by the jet diameter, and accordingly the liquid jet breakup time normalized by the airflow integral time scale, were found to decrease with increasing the airflow turbulence intensity. Two power-law empirical correlations were proposed to predict the liquid jet breakup height and time.
A martingale approach for asset allocation with derivative security and hidden economic risk
Authors: Siu Tak Kuen , Zhu Jinxia , Yang Hailiang 
Published: October 2019

AbstractAsset allocation with a derivative security is studied in a hidden, Markovian regime-switching, economy using filtering theory and the martingale approach. A generalized delta-hedged ratio and a generalized elasticity of an option are introduced to accommodate the presence of the information state process and the derivative security. Malliavin calculus is applied to derive a solution for a general utility function which includes an exponential utility, a power utility, and a logarithmic utility. A compact solution is obtained for a logarithmic utility. Some economic implications of the solutions are discussed.
Approximate lumpability for Markovian agent-based models using local symmetries
Authors: KhudaBukhsh Wasiur R. , Auddy Arnab , Disser Yann , Koeppl Heinz 
Published: October 2019

AbstractWe study a Markovian agent-based model (MABM) in this paper. Each agent is endowed with a local state that changes over time as the agent interacts with its neighbours. The neighbourhood structure is given by a graph. Recently, Simon, Taylor, and Kiss [40] used the automorphisms of the underlying graph to generate a lumpable partition of the joint state space, ensuring Markovianness of the lumped process for binary dynamics. However, many large random graphs tend to become asymmetric, rendering the automorphism-based lumping approach ineffective as a tool of model reduction. In order to mitigate this problem, we propose a lumping method based on a notion of local symmetry, which compares only local neighbourhoods of vertices. Since local symmetry only ensures approximate lumpability, we quantify the approximation error by means of the Kullback–Leibler divergence rate between the original Markov chain and aliftedMarkov chain. We prove the approximation error decreases monotonically. The connections to fibrations of graphs are also discussed.
Degree correlations in scale-free random graph models
Authors: Stegehuis Clara 
Published: October 2019

AbstractWe study the average nearest-neighbour degree a(k) of vertices with degree k. In many real-world networks with power-law degree distribution, a(k) falls off with k, a property ascribed to the constraint that any two vertices are connected by at most one edge. We show that a(k) indeed decays with k in three simple random graph models with power-law degrees: the erased configuration model, the rank-1 inhomogeneous random graph, and the hyperbolic random graph. We find that in the large-network limit for all three null models, a(k) starts to decay beyond $n^{(\tau-2)/(\tau-1)}$ and then settles on a power law $a(k)\sim k^{\tau-3}$, with $\tau$ the degree exponent.
On the equivalence of mixed and behavior strategies in finitely additive decision problems
Authors: Flesch János , Vermeulen Dries , Zseleva Anna 
Published: October 2019

AbstractWe consider decision problems with arbitrary action spaces, deterministic transitions, and infinite time horizon. In the usual setup when probability measures are countably additive, a general version of Kuhn’s theorem implies under fairly general conditions that for every mixed strategy of the decision maker there exists an equivalent behavior strategy. We examine to what extent this remains valid when probability measures are only assumed to be finitely additive. Under the classical approach of Dubins and Savage (2014), we prove the following statements: (1) If the action space is finite, every mixed strategy has an equivalent behavior strategy. (2) Even if the action space is infinite, at least one optimal mixed strategy has an equivalent behavior strategy. The approach by Dubins and Savage turns out to be essentially maximal: these two statements are no longer valid if we take any extension of their approach that considers all singleton plays.
Conditional tail independence in Archimedean copula models
Authors: Falk Michael , Padoan Simone A. , Wisheckel Florian 
Published: October 2019

AbstractConsider a random vector
$\textbf{U}$
whose distribution function coincides in its upper tail with that of an Archimedean copula. We report the fact that the conditional distribution of
$\textbf{U}$
, conditional on one of its components, has under a mild condition on the generator function independent upper tails, no matter what the unconditional tail behavior is. This finding is extended to Archimax copulas.
Geographic distribution and abundance of the Afrotropical subterranean scale insectStictococcus vayssierei(Hemiptera: Stictococcidae), a pest of root and tuber crops in the Congo basin
Authors: Doumtsop Armand R. P. F. , Hanna Rachid , Tindo Maurice , Tata-Hangy Willy K. , Fotso Apollin K. , Fiaboe Komi K. M. , Fomena Abraham , Kemga Adolph , Normark Benjamin B. 
Published: October 2019

AbstractStictococcus vayssiereiis a major pest of root and tuber crops in central Africa. However, data on its ecology are lacking. Here we provide an updated estimate of its distribution with the aim of facilitating the sustainable control of its populations. Surveys conducted in nine countries encompassing 13 ecological regions around the Congo basin showed that African root and tuber scale was present in Cameroon, Central African Republic, Congo, Democratic Republic of Congo, Equatorial Guinea, Gabon and Uganda. It was not found on the sites surveyed in Chad and Nigeria. The pest occurred in the forest and the forest-savannah mosaic as well as in the savannah where it was never recorded before. However, prevalence was higher in the forest (43.1%) where cassava was the most infested crop, compared to the savannah (9.2%) where aroids (cocoyam and taro) were the most infested crops. In the forest habitat, the pest was prevalent in all but two ecological regions: the Congolian swamp forests and the Southern Congolian forest-savanna mosaic. In the savannah habitat, it was restricted to the moist savannah highlands and absent from dry savannahs. The scale was not observed below 277 m asl. Where present, the scale was frequently (87.1% of the sites) attended by the antAnoplolepis tenella. High densities (>1000 scales per plant) were recorded along the Cameroon–Gabon border. Good regulatory measures within and between countries are required to control the exchange of plant materials and limit its spread. The study provides information for niche modeling and risk mapping.
INDIGENOUS AUSTRALIANS AND GERMAN ANTHROPOLOGY IN THE ERA OF ‘DECOLONIZATION’
Authors: FITZPATRICK MATTHEW P. 
Published: October 2019

AbstractDecolonizing history and anthropology is often presented as a theoretical enterprise, through which a more rigorous and inclusive framing of historical precepts will deliver a clearer and less Eurocentric understanding of the past. Yet it is arguably necessary to decouple decolonization from the broader practices of anti-Eurocentric historiography. Via an empirical assessment of the legacy of Hermann Klaatsch, a German anthropologist working on the colonial frontier, this article examines the possibilities and limitations of a decolonizing approach to settler colonial history. The article reflects upon its own study of colonial anthropology and the historical complexity of the repatriation of Indigenous human remains, and suggests that not all anti-Eurocentric interrogations of the colonial past are synonymous with decolonization.
The Role of Dialect Experience in Topic-Based Shifts in Speech Production
Authors: Walker Abby 
Published: October 2019

AbstractAn individual's language can change in the moment due to the topic of conversation and over time because of regional mobility. This paper investigates the relationship between these two types of shifts by asking whether speakers with substantial second dialect exposure change their pronunciation more when the topic changes in a regionally meaningful way compared to speakers with less exposure. Specifically, topic-based shifts on three phonological variables that differ between British and US English are investigated in native speakers of both dialects as a function of the migrant status of the speaker. Experience matters in that speakers only shift between variants in their repertoire, and expatriates have acquired some second dialect features that nonmigrants do not have. However, it does not appear that more exposure to, or increasedratesof usage of a variant leads to more topic-based shifting toward that variant. These findings, interpreted within the existing literature, suggest that topic-based shifts are driven primarily by stereotypical sociolinguistic representations.
Contributions of declarative and procedural memory to accuracy and automatization during second language practice
Authors: Pili-Moss Diana , Brill-Schuetz Katherine A. , Faretta-Stutenberg Mandy , Morgan-Short Kara 
Published: October 2019

AbstractExtending previous research that has examined the relationship between long-term memory and second language (L2) development with a primary focus on accuracy in L2 outcomes, the current study explores the relationship between declarative and procedural memory and accuracy and automatization during L2 practice. Adult English native speakers had learned an artificial language over two weeks (Morgan-Short, Faretta-Stutenberg, Brill-Schuetz, Carpenter & Wong, 2014), producing four sessions of practice data that had not been analyzed previously. Mixed-effects models analyses revealed that declarative memory was positively related to accuracy during comprehension practice. No other relationships were evidenced for accuracy. For automatization, measured by the coefficient of variation (Segalowitz, 2010), the model revealed a positive relationship with procedural memory that became stronger over practice for learners with higher declarative memory but weaker for learners with lower declarative memory. These results provide further insight into the role that long-term memory plays during L2 development.
Palliative care knowledge, information sources, and beliefs: Results of a national survey of adults in the USA
Authors: Adjei Boakye Eric , Mohammed Kahee A. , Osazuwa-Peters Nosayaba , Lee Min Jee , Slomer Lauren , Emuze Damilola , Jenkins Wiley D. 
Published: October 2019

AbstractObjectiveDespite its established benefits, palliative care (PC) is not well known among patients and family/caregivers. From a nationally representative survey, we sought to assess the following associated with PC: knowledge, knowledge sources, and beliefs.MethodsData were drawn from the Health Information National Trends Study (HINTS 5 Cycle 2), a cross-sectional, survey of non-institutionalized adults aged 18+ years in the USA. Data were weighted and assessed by proportional comparison and multivariable logistic regression.ResultsA total of 3504 respondents were identified, and approximately 29% knew about PC. In the adjusted model, less PC knowledge was associated with: lower age (those aged <50), male gender, lower education (<high school graduation or high school graduate), and non-internet users. A little over half (55%) of respondents accessed healthcare providers first for PC information, and 80% considered providers the most trusted source of PC information. Most of the participants strongly/somewhat agreed that the goal of PC is to help friends and family cope with a patient's illness (90.6%), offer social and emotional support (93.4%), and manage pain and other physical symptoms (95.1%). Similarly, a majority (83.3%) strongly/somewhat agreed that it is a doctor's obligation to inform all patients with cancer about the option of PC.Significance of resultsPC knowledge was generally low (1-in-3 respondents knew of PC), with significant differences according to age, gender, education, and internet use. These data provide a baseline from which PC education policies and interventions may be measured.