bluuebunny/crossref_metadata_2025_split huggingface dataset:
High-energy diode-pumped alexandrite amplifier development with applications in satellite-based lidar
Authors: Coney Alexander T. , Damzen Michael J. 
Published: November 2020

Efficient, wavelength-tunable diode-pumped alexandrite laser systems
offer the potential for a more versatile, satellite-based lidar source
compared to fixed wavelength Nd:YAG systems and non-space compliant
lamp-pumped alexandrite. In this paper, we develop a strategy to
enable the high-energy operation required for atmospheric lidar based
on an efficient diode-pumped master oscillator power amplifier (MOPA)
system design. A novel multipass “diamond” slab amplifier geometry is
introduced alongside the experimental results of the world’s first
diode-pumped alexandrite amplifier producing a gain of 2.13 in a
demonstration system. A diode-pumped

Q

-switched alexandrite oscillator is
presented with a record-highest pulse energy of 3.80 mJ. Detailed
optimization of a two-stage amplifier design is studied numerically
and maximized with temperature, wavelength, and pump pulse duration to
produce 50 mJ pulse energy. This forms part of an optimized
alexandrite MOPA design capable of high pulse energy, showing the
future potential of diode-pumped alexandrite for satellite-based
atmospheric lidar.
Cryogenic microwave-to-optical conversion using a triply resonant lithium-niobate-on-sapphire transducer
Authors: McKenna Timothy P. , Witmer Jeremy D. , Patel Rishi N. , Jiang Wentao , Van Laer Raphaël , Arrangoiz-Arriola Patricio , Wollack E. Alex , Herrmann Jason F. , Safavi-Naeini Amir H. 
Published: November 2020

Quantum networks are likely to have a profound impact on the way we compute and communicate in the future. In order to wire together superconducting quantum processors over kilometer-scale distances, we need transducers that can generate entanglement between the microwave and optical domains with high fidelity. We present an integrated electro-optic transducer that combines low-loss lithium niobate photonics with superconducting microwave resonators on a sapphire substrate. Our triply resonant device operates in a dilution refrigerator and converts microwave photons to optical photons with an on-chip efficiency of

6.6
×

10

−
6

and a conversion bandwidth of 20 MHz. We discuss design trade-offs in this device, including strategies to manage acoustic loss, and outline ways to increase the conversion efficiency in the future.
Effect of pemafibrate (K-877), a novel selective peroxisome proliferator-activated receptor α modular (SPPARMα), in atherosclerosis model using low density lipoprotein receptor knock-out swine with balloon injury
Authors: Konishi Hirokazu , Miyauchi Katsumi , Onishi Akira , Suzuki Shunichi , Fuchimoto Daiichiro , Shitara Jun , Endo Hirohisa , Wada Hideki , Doi Shinichiro , Naito Ryo , Ogita Manabu , Dohi Tomotaka , Kasai Takatoshi , Daida Hiroyuki 
Published: November 2020

BackgroundPeroxisome proliferator-activated receptor α (PPARα) is a nuclear receptor that has key roles of lipid metabolism and inflammation. The PPARα may affects the initiation and progression of atherosclerosis by reducing inflammatory responses. Pemafibrate (K-877) is a novel selective PPARα modulator (SPPARMα), which was designed to possess higher PPARα potency and selectivity than existing PPARα agonists. The aim of this study is to evaluate the effect of pemafibrate on vascular response in coronary atherosclerosis model using low density lipoprotein receptor knock-out (LDLR-KO) pigs with balloon injury.Methods and resultsTen LDLR-KO pigs were randomly allocated to two groups [pemafibrate (n = 5) and control (n = 5)] and fed with a diet containing 2.0% cholesterol and 20% lard throughout the study. Balloon injury was created in 40 coronary segments two weeks after starting the oral administration of pemafibrate or placebo. Necropsy was conducted 8 weeks later. Coronary artery sections were reviewed to evaluate lesion progression and the mRNA expression levels for C-Jun, NFκ B, CCL2, CCR7, CD163 and MMP9 determined using real-time RT-PCR. LDL cholesterol at baseline was about 700 mg/dL. The mean ratio of macrophages to plaque area was significantly lower in pemafibrate group compared with control one (7.63±1.16 vs 14.04±4.51, P = 0.02) whereas no differences were observed in intimal area between groups. The mRNA levels of C-Jun, NFκB and MMP9 were significantly decreased in pemafibrate group.ConclusionsPemafibrate was associated with inhibition of inflammatory responses in coronary artery atherosclerosis model using LDLR-KO swine with balloon injury.
ANÁLISE SÓCIO-ESPACIAL DAS DOENÇAS RELACIONADAS AO SANEAMENTO AMBIENTAL NOS MUNICÍPIOS FLUMINENSES
Authors: Gonçalves Arouca Maria Clara , Celia Mercedes Strauch Julia , Nunes Francisco Cristiane 
Published: November 2020

A distribuição desigual da infraestrutura de saneamento nos municípios brasileiros propicia que a proliferação de determinadas doenças atinja grupos populacionais de forma diferente. Esse trabalho objetiva analisar as relações entre as condições sanitárias e a saúde ambiental no estado do Rio de Janeiro, no período de 2007 a 2014. Para isso foram utilizados indicadores de saneamento do Censo Demográfico de 2010 relacionados às condições de infraestrutura dos domicílios particulares permanentes atendidos por abastecimento de água, esgotamento sanitário e coleta de lixo. Dados sobre as doenças relacionadas ao saneamento ambiental inadequado, como a dengue e a hepatite, foram obtidos no DATASUS. Foram aplicadas técnicas de geoprocessamento, de estatística descritiva e de análise multivariada. Observou-se que a dengue apresentou número de ocorrências mais elevado em relação à hepatite, no entanto a primeira apresentou oscilação interanual dos números de casos, enquanto as ocorrências da hepatite exibiram tendência de crescimento no período estudado. A dengue e a hepatite apresentaram maior correlação com a renda média domiciliar mensal, enquanto a hepatite revelou também correlação com os domicílios particulares permanentes com fossa séptica. Por fim, conclui-se que, com os procedimentos metodológicos aqui utilizados, foi possível compreender a distribuição espacial das doenças e seu relacionamento com os indicadores sócios sanitários. Desta forma, podem auxiliar no mapeamento dos riscos e, assim, na adoção de políticas públicas de saúde.
Mikroplastik pada Kedalaman Sedimen yang Berbeda di Pantai Ayah Kebumen Jawa Tengah
Authors: Ridlo Ali , Ario Raden , Al Ayyub Arif Maa’ruf , Supriyantini Endang , Sedjati Sri 
Published: November 2020

Microplastics are one of the most significants pollutan in the marine environment and accumulate in sediments. The purpose of this research is to know the abundance of microplastics at different sediment depth in Ayah Beach Kebumen Central Java. The sediment samples were collected from three depth, 0-5 cm, 6–10 cm and 11–15 cm. microplastics were separated from sediment through density fracxination using NaCl solutiaon and ZnCl2 solution respectively. This study demonstrated that microplastics were consistenly found in all depth. The type of microplastics found were fiber, fragment and film. Fiber was the most frequent type (> 70%) in all samples. At 0–5 cm depth were found 578 microplastisc particle, at 6–10 cm depth were 459 particles, and at 11–15 cm depth were 610 particles. Mikroplastik merupakan salah satu polutan penting di laut dan terakumulasi di sedimen. Penelitian ini bertujuan untuk mengetahui kandungan mikroplastik di sedimen Pantai Ayah kebumen Jawa Tengah. Penelitian ini bertujuan untuk mengetahui kelimpahan mikroplastik pada kedalaman sedimen 0-5 cm, 6–10 cm dan 11–15 cm. Mikroplastik dipisahkan dari sedimen dengan cara fraksinasi berdasarkan densitasnya berturut-turut menggunakan larutan NaCl dan larutan ZnCl2. Hasil penelitian menunjukkan mikroplastik ditemukan pada setiap kedalaman. Bentuk mikroplastik yang ditemukan adalah fragmen, fiber dan film. Bentuk fiber menyusun lebih dari 70 % mikroplastik dalam sedimen di ketiga tingkat kedalaman. Pada kedalaman 0–5 cm terdapat 578 partikel mikroplastik, pada kedalaman 6–10 cm ditemukan 459 partikel, dan pada kedalaman 11–15 cm terdapat 610 partikel.
Estimasi Stok Karbon Padaekosistem Lamun Di Perairan Utara Papua (Studi Kasus : Pulau Liki, Pulau Befondi Dan Pulau Meossu)
Authors: Nugraha Aditya Hikmat , Tasabaramo Ilham Antariksa , Hernawan Udhi E , Rahmawati Susi , Putra Risandi Dwirama , Idris Fadhliyah 
Published: November 2020

One of the ecological functions of the seagrass ecosystem is the ability to absorb carbon coming from the atmosphere. The ability of seagrass to absorb carbon is carried out through photosynthesis. The absorbed carbon will then be stored in the form of seagrass biomass in the seagrass body. This study aims to estimate the carbon stock content stored in seagrass ecosystems in the Northern waters of Papua including on Liki Island, Befondi Island, and Meossu Island. The calculation of carbon stock is done by converting seagrass biomass using constants derived from representative values of seagrass carbon content in Indonesian waters. In general, based on the results obtained indicate that the biomass at the bellow ground of the seagrass is greater than the biomass at above ground the seagrass. The value of organic carbon content in seagrasses is influenced by seagrass biomass. The carbon stock content in the seagrass ecosystem in the study area is in the range of 18,04 – 419,46 g C / m2. Stations on Liki Island have generally higher carbon stocks compared to stations on other islands.Salah satu fungsi ekologi dari ekosistem lamun yaitu memiliki kemampuan dalam menyerap karbon yang berasal dari atmosfer. Kemampuan lamun dalam menyerap karbon dilakukan melalui proses fotosintesis. Karbon yang terserap selanjutnya akan disimpan dalam bentuk biomassa lamun pada tubuh lamun. Penelitian ini bertujuan untuk mengestimasi kandungan stok karbon yang tersimpan pada ekosistem lamun di Perairan Utara Papua tepatnya di Pulau Liki, Pulau Befondi dan Pulau Meossu. Perhitungan stok karbon dilakukan dengan melakukan konversi biomassa lamun menggunakan konstanta yang berasal dari nilai representatif konsentrasi kandungan karbon pada lamun yang berada di Perairan Indonesia. Secara umum berdasarkan hasil yang diperoleh menunjukkan bahwa biomassa pada bagian bawah lamun lebih besar dibandingkan dengan biomassa pada bagian atas lamun. Nilai kandungan karbon organik pada lamun dipengaruhi oleh biomassa lamun. Kandungan stok karbon pada ekosistem lamun di wilayah penelitian berada pada kisaran 18,04 – 419,46 gC/m2. Stasiun yang berada di Pulau Liki memiliki stok karbon yang umumnya lebih tinggi dibandingkan dengan stasiun yang berada di pulau lainnya.
A Weak Type Vector-Valued Inequality for the Modified Hardy–Littlewood Maximal Operator for General Radon Measure on ℝ
n
Authors: Sawano Yoshihiro 
Published: November 2020

Abstract
The aim of this paper is to prove the weak type vector-valued inequality for the modified Hardy– Littlewood maximal operator for general Radon measure on ℝ
n
. Earlier, the strong type vector-valued inequality for the same operator and the weak type vector-valued inequality for the dyadic maximal operator were obtained. This paper will supplement these existing results by proving a weak type counterpart.
Nietzsche’s English Genealogy of Truthfulness
Authors: Queloz Matthieu 
Published: November 2020

AbstractThis paper aims to increase our understanding of the genealogical method by taking a developmental approach to Nietzsche’s genealogical methodology and reconstructing an early instance of it: Nietzsche’s genealogy of truthfulness inOn Truth and Lie.Placing this essay against complementary remarks from his notebooks, I show that Nietzsche’s early use of the genealogical method concerns imagined situations before documented history, aims to reveal practical necessity before contingency, and focuses on vindication before it turns to subversion or problematization. I argue that we understand Nietzsche’s later critique of truthfulness better if we place it against the background of his earlier vindicatory insight into the practical necessity of cultivating truthfulness in some form; and I suggest that Nietzsche’s own mature genealogical method has roots in its supposed contrary, the method of the “English” genealogists.
On the sharp interface limit of a model for phase separation on biological membranes
Authors: Abels Helmut , Kampmann Johannes 
Published: November 2020

AbstractWe rigorously prove the convergence of weak solutions to a model for lipid raft formation in cell membranes which was recently proposed in [H. Garcke, J. Kampmann, A. Rätz and M. Röger, A coupled surface-Cahn–Hilliard bulk-diffusion system modeling lipid raft formation in cell membranes, Math. Models Methods Appl. Sci. 26 2016, 6, 1149–1189] to weak (varifold) solutions of the corresponding sharp-interface problem for a suitable subsequence. In the system a Cahn–Hilliard type equation on the boundary of a domain is coupled to a diffusion equation inside the domain. The proof builds on techniques developed in [X. Chen, Global asymptotic limit of solutions of the Cahn–Hilliard equation, J. Differential Geom. 44 1996, 2, 262–311] for the corresponding result for the Cahn–Hilliard equation.
Insights in thixotropic concrete pumping by a Poiseuille flow extension
Authors: De Schryver Robin , De Schutter Geert 
Published: November 2020

AbstractThixotropy is a reversible time-dependent phenomenon in fluids, in which an internal structure grows due to flocculation and breaks down under shear action. Numerous fluids are thixotropic,e.g.concretes and cementitious suspensions. Pumping of concrete is an important application. Since current approaches omit thixotropic effects, we aim to develop a simple theoretical model to evaluate or understand the significance of thixotropy on the concrete pumping behaviour. We therefore extended Poiseuille flow for thixotropic concretes and reformulated it in a dimensionless form to gain insights. After a validation, the results and significance are elaborated and concluded.Results showed that for increasing thixotropy and decreasing flow rates, the plug radius, wall shear rate and pumping pressure loss increase. Even though all thixotropy mechanisms may not be covered, a simple model is delivered to interpret or predict the effect of thixotropy on the pumping behaviour of cementitious suspensions. The dimensionless formulations via the Bingham numberBnand related discharge diagrams are sufficiently elegant for computational implementation and very insightful to distinguish a thixotropic flow regime. The model could be extended for more complicated thixotropies, irreversible time-dependent effects or even other pumping related phenomena.
Corona als Chance?!
Authors: Krug Katharina 
Published: November 2020

Zusammenfassung
Während des Corona-Lockdowns wurden die meisten Bibliotheken geschlossen. In dieser Zeit waren die Nutzerinnen und Nutzer vor allem auf elektronische Medien angewiesen. Das Beispiel der UB Kassel zeigt, wie stark der Wunsch nach E-Books war. Das Bibliothekspersonal und auch die Verlage haben innerhalb kürzester Zeit neue Dienstleistungen angeboten. Die Universität Kassel reagierte tagesaktuell auf die neuen Entwicklungen. So wurde bspw. die Lehre auf digital umgestellt und das mobile Arbeiten für die Beschäftigten eingeführt.
Kontinuität und Wandel
Authors: Langer Robert 
Published: November 2020

Zusammenfassung
In Sachsen werden seit über einhundert Jahren kommunale Bibliotheken durch eine vom Land finanzierte Fachstellenarbeit unterstützt. Ziele und Voraussetzungen haben sich dabei mehrfach geändert und waren ideologisch gesetzt. Auch heute steht man wieder vor einer Strukturveränderung, mit der gleichzeitig eine inhaltliche Neuausrichtung einhergehen soll, dies jedoch mit Augenmaß und genauer Analyse von Bestand und Bedarf. Was zum Beispiel sagen uns funktionierende „Dritte Orte“ in Landgemeinden über den Zustand des sächsischen Bibliothekswesens?
Changes Over Time in the Cost of Job Loss for Young Men and Women
Authors: Barnette Justin , Odongo Kennedy , Reynolds C. Lockwood 
Published: November 2020

Abstract
Using data from the two cohorts of the NLSY, we examine whether income losses due to involuntary job separations have changed over time. We find that wage losses among men are similar between the two cohorts. However, women in the 1979 cohort show little evidence of wage losses while women in the 1997 cohort experience wage losses similar to those of men. We present evidence that changes in occupations across cohorts help explain these results.
Preparation of konjac oligoglucomannans with different molecular weights and their in vitro and in vivo antioxidant activities
Authors: Yang Weidong 
Published: November 2020

AbstractIn this paper, konjac oligoglucomannan (KOGM) was obtained with a hydrolysis rate of 56.24% by controlling the hydrolysis conditions. KOGM was passed through a 0.2 kDa dialysis bag, a 3 kDa ultrafiltration tube, and a 5 kDa ultrafiltration tube, creating samples with molecular weights of 0.2–3 kDa (IV), 3–5 kDa (III), and >5 kDa (II), respectively. The in vitro antioxidant activities of the KOGM samples were tested by measuring their removal effects on ˙OH, {\text{O}}_{2}^{-}, and DPPH˙. The in vivo antioxidant activities of the samples were analyzed by measuring their impacts on the malondialdehyde (MDA) content, superoxide dismutase (SOD) activity, and glutathione peroxidase (GSH-PX) activity in mice. The results show that the KOGM samples in groups III and IV could effectively remove ˙OH, {\text{O}}_{2}^{-}, and DPPH˙; the KOGM samples in all three groups could enhance the SOD and GSH-PX activities and reduce the MDA content in the liver tissues of mice; finally, the antioxidant activity of KOGM is negatively correlated with the molecular weight.
Basic Income, Labour Automation and Migration – An Approach from a Republican Perspective
Authors: Fischer Yannick 
Published: November 2020

Abstract
This research uses a normative approach to examine the relationship between basic income and migration. The decisive variable is the effect of labour automation, which increases economic insecurities globally, leaving some nation states in a position to cope with this and others not. The insecurities will increase migratory pressures on one hand but also justify the introduction of basic income on a nation state level on the other.
The normative guideline is the republican conception of freedom as non-domination. This is used to justify a basic income, analyse how labour automation creates dominating structures and how borders dominate migrants seeking to move to countries which introduce a basic income.
The result is that nation states that introduce a basic income to counter internal domination through labour automation, also have to look outside of their nation state. The imposition of borders in order to keep a basic income sustainable as well as labour automation itself, establish a form of domination over less developed countries and thus demand international regulation.
Shell-supported footbridges
Authors: Fenu Luigi , Congiu Eleonora , Marano Giuseppe Carlo , Briseghella Bruno 
Published: November 2020

Abstract
Architects and engineers have been always attracted by concrete shell structures due to their high efficiency and plastic shapes. In this paper the possibility to use concrete shells to support footbridges is explored. Starting from Musmeci’s fundamental research and work in shell bridge design, the use of numerical form-finding methods is analysed. The form-finding of a shell-supported footbridge shaped following Musmeci’s work is first introduced. Coupling Musmeci’s and Nervi’s experiences, an easy construction method using a stay-in-place ferrocement formwork is proposed. Moreover, the advantage of inserting holes in the shell through topology optimization to remove less exploited concrete has been considered. Curved shell-supported footbridges have been also studied, and the possibility of supporting the deck with the shell top edge, that is along a single curve only, has been investigated. The form-finding of curved shell-supported footbridges has been performed using a Particle-Spring System and Thrust Network Analysis. Finally, the form-finding of curved shell-supported footbridges subjected to both vertical and horizontal forces (i.e. earthquake action) has been implemented.
An Exact Realization of a Modified Hilbert Transformation for Space-Time Methods for Parabolic Evolution Equations
Authors: Zank Marco 
Published: November 2020

Abstract
We present different possibilities of realizing a modified Hilbert type transformation as it is used for Galerkin–Bubnov discretizations of space-time variational formulations for parabolic evolution equations in anisotropic Sobolev spaces of spatial order 1 and temporal order

1
2

\frac{1}{2}

. First, we investigate the series expansion of the definition of the modified Hilbert transformation, where the truncation parameter has to be adapted to the mesh size. Second, we introduce a new series expansion based on the Legendre chi function to calculate the corresponding matrices for piecewise polynomial functions. With this new procedure, the matrix entries for a space-time finite element method for parabolic evolution equations are computable to machine precision independently of the mesh size. Numerical results conclude this work.
A Space-Time Adaptive Algorithm to Illustrate the Lack of Collision of a Rigid Disk Falling in an Incompressible Fluid
Authors: Dubuis Samuel , Picasso Marco , Wittwer Peter 
Published: November 2020

Abstract
A space-time adaptive algorithm to solve the motion of a rigid disk in an incompressible Newtonian fluid is presented, which allows collision or quasi-collision processes to be computed with high accuracy. In particular, we recover the theoretical result proven in [M. Hillairet,
Lack of collision between solid bodies in a 2D incompressible viscous flow,
Comm. Partial Differential Equations 32 2007, 7–9, 1345–1371], that the disk will never touch the boundary of the domain in finite time. Anisotropic, continuous piecewise linear finite elements are used for the space discretization, the Euler scheme for the time discretization. The adaptive criteria are based on a posteriori error estimates for simpler problems.
Gasification of Glycerol Over Ni/γ-Al2O3 For Hydrogen Production: Tailoring Catalytic Properties to Control Deactivation
Authors: Umar Ahmed , Irvine John T.S. 
Published: November 2020

AbstractThe effects of catalyst loading, calcination and reaction temperatures on the structural properties and catalytic behavior of Ni/γ-Al2O3 catalyst system in relation to steam reforming of glycerol and catalyst deactivation were investigated. The results showed that catalyst loading, reaction and calcination temperatures had a profound influence on the structure and catalytic activity in glycerol conversion. Use of high calcination temperature (900-1000 °C) led to phase transformation of the active Ni/Al2O3 to less active spinel specie NiAl2O4 that resulted in a successive change of texture and color. The particle size growth and phase change at this temperature were responsible for the catalyst deactivation and low performance especially among the catalyst calcined at high temperatures. Conversely, at low reaction temperatures, catalyst surfaces were marred by carbon deposition. Whilethe polymeric carbon deposited at metal-support interface was associated with low reaction temperatures, high reaction temperatures were characterized predominantly by both amorphous carbon deposited on the active metal surface and polymeric or graphitic carbon deposited at metal-support interface respectively. Calcination temperature showed no significant influence on the location and type of coke deposited on the catalyst surface. Hence, catalyst loading, calcination and reaction temperatures could be tailored to enhance structural and catalytic properties and guard against catalyst deactivation.