bluuebunny/crossref_metadata_2025_split huggingface dataset:
Polygons as maximizers of Dirichlet energy or first eigenvalue of Dirichlet-Laplacian among convex planar domains
Authors: Lamboley Jimmy , Novruzi Arian , Pierre Michel 
Published: November 2022

Abstract
We prove that solutions to several shape optimization problems in the
plane, with a convexity constraint on the admissible domains, are polygons. The main
terms of the shape functionals we consider are either the Dirichlet energy

E
f

⁢

(
Ω
)

{E_{f}(\Omega)}

of the
Laplacian in the domain Ω or the first eigenvalue

λ
1

⁢

(
Ω
)

{\lambda_{1}(\Omega)}

of the Dirichlet-Laplacian.
Usually, one considers minimization of such functionals (often with measure constraint),
as for example for the famous Saint-Venant and Faber-Krahn inequalities. By adding
the convexity constraint (and possibly other natural constraints), we instead consider the rather unusual and difficult question of maximizing these functionals. This paper follows a series of papers by the authors, where the leading idea is that a certain concavity property of the shape functional that is minimized leads optimal shapes
to locally saturate their convexity constraint, which geometrically means that they are
polygonal. In these previous papers, the leading term in the shape functional
was usually the opposite of the perimeter, for which the aforementioned concavity property was
rather easy to obtain through computations of its second order shape derivative.
By carrying classical shape calculus, a similar concavity property can be observed for
the opposite of

E
f

⁢

(
Ω
)

{E_{f}(\Omega)}

or

λ
1

⁢

(
Ω
)

{\lambda_{1}(\Omega)}

when shapes are smooth and convex. The main novelty in
the present paper is the proof of a weak convexity property of

E
f

⁢

(
Ω
)

{E_{f}(\Omega)}

and

λ
1

⁢

(
Ω
)

{\lambda_{1}(\Omega)}

among planar convex shapes, namely rather nonsmooth shapes. This involves new computations and estimates of the
second order shape derivatives of

E
f

⁢

(
Ω
)

{E_{f}(\Omega)}

and

λ
1

⁢

(
Ω
)

{\lambda_{1}(\Omega)}

interesting for themselves.
Moderne Genisaforschung in Deutschland
Authors: Singer-Brehm Elisabeth 
Published: November 2022

Abstract
Hidden in the attics of old synagogues in Germany, the very last remnants of former Genizot survived unnoticed not only the NS period, but also the following years of secular use of these buildings. Since the 1950s Genizot have been found mostly in the course of renovation work on the synagogues. After ages of storage in the attics, Genizah findings are usually in very bad condition. The finders standing before dirty »shambles out of paper« often considered Genizot to be rubbish. Only after some time researchers began to study the material, soon realizing that these findings were much more than »sacred trash«, since they could provide insight into the life of Jewish rural communities from the 17th to 19th century. Till today, dozens of Genizot have been saved in Germany. The Genisaprojekt Veitshöchheim and other researchers are dealing with the inventory, the digitization and the publication of the finds. However, there are still hardly any studies drawing concrete conclusions about Jewish community life based on the Genizah findings.
Stercus Abrahe: Binäre Codes in Antijudaismus und Antisemitismus
Authors: Cluse Christoph 
Published: November 2022

Abstract
The common distinction between the concepts of »Anti-Judaism« and »Antisemitism« has recently been challenged by medievalists. The present study investigates how the concepts are related, taking its starting point from the widespread association of »Jews« with »money«. Based on two case studies – the Liber floridus of Lambert of Saint-Omer (c.1121) and the Viennese scholars Henry of Langenstein and Henry Totting of Oyta (both d. 1397) – it argues that the patristic distinction between Jewish ›carnality‹ and Christian ›spirituality‹ provided the binary code used to distinguish between good and bad in the economic world.
»Linker Antisemitismus« oder »Antisemitismus unter Linken«?
Authors: Pfahl-Traughber Armin 
Published: November 2022

Abstract
Actually, there is no potential for anti-Semitism in leftist ideology, since ethnic or religious identity characteristics are not supposed to play a role there. Nevertheless, there were and are anti-Semitic attitudes among leftists. A look at the German left in the past and present makes this clear: As early as in Marxʼs writings, anti-Semitic stereotypes can be detected. The Communist Party in the Weimar Republic also instrumentalized such stereotypes. And in the Communist organizations in the Federal Republic of Germany, anti-Israel views often had an anti-Semitic background. This also applies to the autonomous movement or the left-wing terrorism of the 1970s to 1980s. Nowadays, such attitudes can be observed in protest movements critical of capitalism, but also among the supporters of the BDS boycott movement. However, it is necessary to differentiate: A one-sided hostility towards Israel can, but does not have to be an expression of an anti-Semitic position.
Study on essential oil, antioxidant activity, anti-human prostate cancer effects, and induction of apoptosis by Equisetum arvense
Authors: Gu Hongyong , Yi Ting , Lin Pengxiu , Hu Jin 
Published: November 2022

Abstract
In this study, we have reported the chemical composition of Equisetum arvense essential oil and the anti-cancer activity of the plant against the prostate cancer cell line. The essential oil was obtained using the hydro-distillation assay. The chemical composition was identified using the gas chromatographic methods including gas chromatography/flame ionization detector and gas chromatography/mass spectrometry. The antioxidant activity of the essential oil and extract was evaluated using classical methods. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was run to evaluate the cytotoxic effect of the essential oil and extract on the prostate cancer cell line of lymph node carcinoma of the prostate. The induction apoptosis of the extract was analyzed by a flow cytometer. Thymol acetate (14.7%), trans-carveol (12.5%), thymol (11.8%), and δ-elemene (9.4%) were identified as the main compounds for the essential oil. The extract scavenged the free radical of 2,2-diphenyl-1-picrylhydrazyl with a half maximal inhibitory concentration (IC50) of 15.2 ± 1.4 μg/mL for the plant extract. In the MTT assay, the IC50 of the extract and essential oil were 25.2 ± 0.3 and 218.9 ± 10.7 μg/mL after 72 h. The highest apoptosis was 31.6% for the plant extract. The obtained results of the present study revealed that E. arvense can be introduced as a potent agent to prevent the growth of prostate tumors.
Comparing linguistic and cultural explanations for visual search strategies
Authors: Wolter Brent , Leung Chi Yui , Wang Shaoxin , Chen Shifa , Yamashita Junko 
Published: November 2022

Abstract
Visual search studies have shown that East Asians rely more on information gathered through their extrafoveal (i.e., peripheral) vision than do Western Caucasians, who tend to rely more on information gathered using their foveal (i.e., central) vision. However, the reasons for this remain unclear. Cognitive linguists suggest that the difference is attributable linguistic variation, while cultural psychologists contend it is due to cultural factors. The current study used eye-tracking data collected during a visual search task to compare these explanations by leveraging a semantic difference against a cultural difference to determine which view best explained strategies used on the task. The task was administered to Chinese, American, and Japanese participants with a primary focus on the Chinese participants’ behaviors since the semantic difference aligned the Chinese participants with the Americans, while their cultural affiliation aligned them with the Japanese participants. The results indicated that the Chinese group aligned more closely with the American group on most measures, suggesting that semantic differences were more important than cultural affiliation on this particular task. However, there were some results that could not be accounted for by the semantic differences, suggesting that linguistic and cultural factors might affect visual search strategies concurrently.
Furries, freestylers, and the engine of social change: The struggle for recognition in a mediatized world
Authors: Hemming Pedersen Leif 
Published: November 2022

Abstract
This article merges the ‘terminologies of social change’ from recognition theory and mediatization research to argue that the mediatization of society has eased and accelerated processes of what recognition theorist Axel Honneth calls individualization and social inclusion. This, however, cannot be understood unambiguously as moral progress. Thus, the first part of the article outlines the conceptualization of social change in Honneth’s recognition-theoretical framework, including the critique of recognition theory’s account of power, which problematizes Honneth’s inherent idea of moral progress. Considering this critique, the article follows Douglas Giles’ suggestion that we must distinguish between affirmational and transformational struggles for recognition. The discussion is subsequently related to the conceptualization of social change in mediatization research, which shows that the closely interrelated phenomena of a social relocation of media and a re-orientation of the self help facilitate and constitute the individual’s increased possibilities, but also dependence, with respect to intersubjective recognition from peer groups in many contemporary societies. This provides the starting point for exemplifying how the conditions for affirmational and transformational recognition struggles, and thus individualization and social inclusion, have changed in a mediatized world. This exemplification draws primarily on an in-depth case study of mediated recognition in the lives of four young Danes aged 15 to 30 years with different subcultural identity positions. The main empirical illustrations involve the experiences of the 22-year-old hijabi football freestyler Maarika, who uses her Muslim identity actively on her social media channels to be a role model and to counter negative stereotypes of Muslims and female footballers.
Research progress on the corrosion behavior of titanium alloys
Authors: Yang Jiayu , Song Yingwei , Dong Kaihui , Han En-Hou 
Published: November 2022

Abstract
Titanium and its alloys show outstanding application prospects in many industrial fields due to their high specific strength, good corrosion resistance, high temperature resistance, etc. However, at present the corrosion failure of Ti alloys is attracted great attention with gradual increasing applications. The different localized corrosion forms are introduced in this review, including galvanic corrosion, crevice corrosion, pitting corrosion, hydrogen-induced cracking, stress corrosion crack, microbiological corrosion, corrosion fatigue, and corrosion wear. Among them, the corrosion failure caused by stress corrosion crack and hydrogen-induced cracking is the most serious, accounting for about 40–60% of the actual failure accidents. The effects of temperature, pressure, corrosive media and microstructure on the failure of titanium alloys are discussed. Particularly noteworthy, F− is extremely aggressive to the passive film of titanium alloys. The corrosion behavior of titanium alloys applied in aerospace, marine, petrochemical industries and biomedical environments are introduced. In the above environments, the passive film is most easily damaged and difficult to passive in high temperature and oxygen-deficient environments. The current controversies in the corrosion mechanism have also been proposed, especially the stress corrosion that has the most serious impact on titanium alloys, and its mechanism will be the focus of future research.
Computation of solution of integral equations via fixed point results
Authors: Alqudah Manar A. , Garodia Chanchal , Uddin Izhar , J. Nieto Juan 
Published: November 2022

Abstract
The motive of this article is to study a modified iteration scheme for monotone nonexpansive mappings in the class of uniformly convex Banach space and establish some convergence results. We obtain weak and strong convergence results. In addition, we present a nontrivial numerical example to show the convergence of our iteration scheme. To demonstrate the utility of our scheme, we discuss the solution of nonlinear integral equations as an application, which is again supported by a nontrivial example.
Tameness of Margulis space-times with parabolics
Authors: Choi Suhyoung , Drumm Todd , Goldman William 
Published: November 2022

Abstract
Let

𝖤

{\mathsf{E}}

be a flat Lorentzian space of signature

(
2
,
1
)

{(2,1)}

.
A Margulis space-time is a noncompact complete Lorentz flat 3-manifold

𝖤
/
Γ

{\mathsf{E}/\Gamma}

with a free holonomy group Γ of rank

𝗀

{\mathsf{g}}

,

𝗀
≥
2

{\mathsf{g}\geq 2}

.
We consider the case when Γ contains a parabolic element.
We obtain a characterization of proper Γ-actions in terms of Margulis and Charette–Drumm invariants.
We show that

𝖤
/
Γ

{\mathsf{E}/\Gamma}

is homeomorphic to the interior of a compact handlebody of genus

𝗀

{\mathsf{g}}

generalizing our earlier result.
Also, we obtain a bordification of the Margulis space-time with parabolics
by adding a real projective surface at infinity
giving us a compactification as a manifold
relative to parabolic end neighborhoods.
Our method is to estimate the translational parts of the affine transformation group and use some 3-manifold topology.
Reproducing kernels and minimal solutions of elliptic equations
Authors: Żynda Tomasz Łukasz , Sadowski Jacek Józef , Wójcicki Paweł Marian , Krantz Steven George 
Published: November 2022

Abstract
Suppose that the set of square-integrable solutions of an elliptic equation which have a value at some given point equal to c is not empty. Then
there is exactly one element with minimal

L
2

{L^{2}}

-norm. Moreover, it is shown that this minimal element depends continuously on a domain of integration, i.e.,
on the set on which our solutions are defined, and on a weight of integration, i.e., on the deformation of an inner product. The theorems are proved using the theory of reproducing kernels and Hilbert spaces of square-integrable solutions of elliptic equations. We prove the existence of such a reproducing kernel using theory of Sobolev spaces.
We generalize the well-known Ramadanov theorem. This is done in three different ways. Two of them are similar to the techniques used by I. Ramadanov and M. Skwarczyński(see [11, 14, 13])
, while the third method using weak convergence is new. Moreover, we show that our reproducing kernel depends continuously on a weight of integration. The idea of using the minimal norm property in such a proof is novel and, which is important, it needs the convergence of weights only almost everywhere.
First records of albinism and leucism in Ctenodactylus gundi (Rodentia: Ctenodactylidae)
Authors: El-Farhati Haithem , Nouira Saïd 
Published: November 2022

Abstract
Albinism and leucism are genetic disorders that cause atypical coloration. Herein, we present observation cases of hypomelanism not previously recorded in the literature for a Ctenodactylidae species. We report two observations of an albino and a leucistic specimens from two separate locations distant of 230 km in the central and southern Tunisia. The first observation was in Metlaoui (34°21′14.9″N 8°22′16.7″E) and the second in Ghomrassen (33°04′46.5″N 10°21′23.7″E). Certain factors can increase the chances of these atypical colorations in the natural population, but these phenotypes remain rare in rodents, especially in African species.
An algebraic semigroup method for discovering maximal frequent itemsets
Authors: Liu Jiang , Li Jing , Ni Feng , Xia Xiang , Li Shunlong , Dong Wenhui 
Published: November 2022

Abstract
Discovering maximal frequent itemsets is an important issue and key technique in many data mining problems such as association rule mining. In the literature, generating maximal frequent itemsets proves either to be NP-hard or to have

O

(

l

3

4

l

(

m
+
n

)

)

O\left({l}^{3}{4}^{l}\left(m+n))

complexity in the worst case from the perspective of generating maximal complete bipartite graphs of a bipartite graph, where

m

m

,

n

n

are the item number and the transaction number, respectively, and

l

l

denotes the maximum of

∣
C
∣
∣
Ψ

(

C

)

∣

/

(

∣
C
∣
+
∣
Ψ

(

C

)

∣
−
1

)

| C| | \Psi \left(C)| \hspace{0.1em}\text{/}\hspace{0.1em}\left(| C| +| \Psi \left(C)| -1)

, with the maximum taken over all maximal frequent itemsets

C

C

. In this article, we put forward a method for discovering maximal frequent itemsets, whose complexity is

O

(

3
m
n

2

β

+

4

β

n

)

O\left(3mn{2}^{\beta }+{4}^{\beta }n)

, lower than the known complexity both in the worst case, from the perspective of semigroup algebra, where

β

\beta

is the number of items whose support is more than the minimum support threshold. Experiments also show that an algorithm based on the algebraic method performs better than the other three well-known algorithms. Meanwhile, we explore some algebraic properties with respect to items and transactions, prove that the maximal frequent itemsets are exactly the simplified generators of frequent itemsets, give a necessary and sufficient condition for a maximal

i
+
1

i+1

-frequent itemset being a subset of a closed

i

i

-frequent itemset, and provide a recurrence formula of maximal frequent itemsets.
In-situ CT characterization of 2D woven SiCf/SiC composite loading under compression
Authors: Guo Weina , Gao Yantao , Sun Lijuan 
Published: November 2022

Abstract
SiC fiber-reinforced SiC matrix composites (SiCf/SiC) with 2D woven fabric as preform were tested under compression with in-situ X-ray computed tomography. The microstructure and damage evolution of the material under continuous loading levels were accurately revealed by image reconstruction of CT data. There were inhomogeneous pores in SiCf/SiC composite because of the un-uniform fiber distribution in the preform. The result also showed that 2D woven SiCf/SiC composite had obvious non-linear characteristics by its compressive load–displacement curve, and the damage modes included transverse matrix cracking, interlayer cracking, longitudinal matrix cracking, and fiber bundle fracture. Matrix cracking tended to occur near the pores or holes of the material, and the number of longitudinal cracks was relatively high compared to the number of transverse cracks.
Visual representations on Nigerian trucks: a semiotic study
Authors: Mensah Eyo , Nyong Benjamin 
Published: November 2022

AbstractThe public transport sector in the urban landscape in Nigeria is a prominent social site for the spatial distribution of automobile graffiti signatures. Transporters have various kinds of symbolic tags on their vehicles that convey different messages which represent their local attitudes, beliefs, religious identities, folk psychology, and safety precautionary measures to recipients (other road users and passers-by). This article, based on two case studies, examines the practice of automobile graffiti on trucks and lorries in Calabar metropolis, Cross River State, south-eastern Nigeria. It investigates the motivations, thematic categories, and subjective semiotic interpretations of these verbal signatures from the perspectives of visual semiotics theory using participant observations, semi-structured interviews, and informal conversations. The study demonstrates that truck drivers/owners use their vehicles as visible artistic platforms in the public space to express their thoughts and sentiments on personal, social, and religious issues affecting the society. The study concludes that these inscriptions and imageries are artistic subcultures that mirror wide ranging value categories and provide outlets for spatial transformation, creative agencies, and social commentaries.
Furoquinoline and bisindole alkaloids from the roots ofTeclea nobilisand theirin-silicomolecular docking analysis
Authors: Ayele Tamrat Tesfaye , Gurmessa Getahun Tadesse , Abdissa Zelalem , Melaku Yadessa , Garg Ankita , Bedane Kibrom Gebreheiwot , Abdissa Negera 
Published: November 2022

AbstractTeclea nobilisis a medicinal plant widely used to treat oral pathogens, gonorrhea, fever, analgesics, asthma, joint pains, pneumonia, and intestinal worms in Ethiopia. Anticipated by these claims, column chromatographic separation of the roots extract ofT.nobilisled to the isolation of eight alkaloids (1–8). The structures of the isolated compounds were identified based on their NMR (1D and 2D) spectral data analysis and comparison with reported literature data.In-silicomolecular docking analysis of the isolated compounds were performed againstStaphylococcus aureusDNA Gyrase (PDB ID: 2XCT) and human topoisomerase IIβ DNA (PDB ID: 3QX3) by using AutoDock Vina. ADMET analysis were performed by SwissADME, PreADMET, and OSIRIS Property predictions. The study revealed that the isolated compounds exhibited promising binding affinity to DNA gyrase, especially with compound 5 forms a stable drug-protein complex. Whereas the ADME and drug-likeness analysis revealed that compound 5 is less absorbed from the gastrointestinal tract, crossblood brain barrier and a P-glycoprotein substrate. This indicated that compound 5 could be a good candidate as anticancer agent provided thatin vivoanalysis done for more confirmation.
Ludwig’s Punch and Bertie’s Comeback
Authors: Baumann Peter 
Published: November 2022

Desires are contentful mental states. But what determines the content of a desire? Two different classic answers were proposed by Russell and by Wittgenstein, starting in the 1910s. Russell proposed a behaviourist account according to which the content of the desire is fixed by the type of state that puts an end to the relevant kind of behaviour which was triggered by some initial discomfort. The desire’s content consists in its “satisfaction conditions”. Wittgenstein criticized such an account for neglecting the crucial point that the relation between a desire and its content is a conceptual, internal one, not an external contingent one. Desires specify their own contents, their “fulfillment conditions”. Even though there is a lot to say in favour of Wittgenstein’s criticism, this paper argues that Russell pointed at an important aspect of desires which plays a crucial role for accounts of self-knowledge of one’s own desires. It turns out fulfillment conditions and satisfaction conditions are tied together in rational self-knowledge of one’s own desires. In this sense, the views of Russell and Wittgenstein can be combined in a fruitful way.
POTENCIAL ANALÍTICO DOS GÊNEROS DO DISCURSO PARA OS ESTUDOS VARIACIONISTAS
Authors: Lacerda Marcela Langa , Görski Edair Maria 
Published: November 2022

Por diferentes vias, estudos variacionistas têm recorrido aos Escritos do Círculo de Bakhtin, particularmente à noção de gêneros do discurso. Este texto objetiva refletir sobre por que os gêneros do discurso são relevantes para os estudos variacionistas, especialmente para os de terceira onda, que têm como questão central a noção de estilo. Por meio de pesquisa bibliográfica, examinam-se parte da literatura da terceira onda variacionista (ECKERT, 2012, 2016, 2018; KIESLING, 2013; COUPLAND, 2007) e parte da literatura da abordagem bakhtiniana (BAKHTIN, 2011, 2014; MEDVIÉDEV, 2012; VOLOCHÍNOV, 2013) com foco na noção de estilo, para (i) indicar alguns pontos de contato entre essas abordagens e (ii) articulá-las, em alguns outros pontos, com vistas a contribuir com a produção de conhecimento em torno do objetivo aqui proposto. Os resultados dessa reflexão indicam que os gêneros do discurso são relevantes para os interesses dos estudos de terceira onda porque (i) o estilo linguístico é uma propriedade dos gêneros do discurso; e (ii) uma compreensão do estilo requer uma compreensão da constituição (social e formal) dos gêneros, estando neles indiciadas categorias de análise que são caras à terceira onda variacionista.